{"title":"TEST - Cylinder Heads \u0026 Valvetrain","description":"","products":[{"product_id":"arp-head-stud-kit-arp2000-pro-series-rb26dett-for-nissan-skyline-r32-r33-r34-202-4207","title":"ARP Head Stud Kit ARP2000 Pro Series RB26DETT 202-4207","description":"\u003cp\u003eDiscover the exceptional power of the ARP Head Stud Kit ARP2000 Pro Series RB26DETT, part number 202-4207, available at Terra Firma Nissan Parts. Trusted by top professional engine builders, these head studs are the ultimate choice for all-out competition powerplants.\u003c\/p\u003e\n\u003cp\u003eCold-forged for superior molecular integrity and heat-treated before machining, these studs are rated nominally at 200,000 psi. Precision CNC-machined to perfection, they deliver unmatched strength and reliability. The ARP Pro Series head bolt kits are designed for competition-only components, ensuring maximum performance.\u003c\/p\u003e\n\u003cp\u003eEach kit includes hardened and parallel-ground washers for even load distribution and accurate torque readings. The reduced wrenching hex or 12-point head and wide area flange eliminate the need for valve train removal during cylinder head retorquing and allow larger diameter valve springs.\u003c\/p\u003e\n\u003cp\u003eTrust in ARP's renowned \"ZERO defect - ZERO failure\" quality standard. Upgrade to the ARP Head Stud Kit ARP2000 Pro Series RB26DETT for unrivaled performance and durability. Shop now at Terra Firma Nissan Parts to take your engine to the next level.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e14mm 12pt, 5mm Allen\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eForged in-house at ARP using only the finest quality materials\u003c\/li\u003e\n\u003cli\u003eHeat-treated using special vertical racks to assure complete 360° penetration\u003c\/li\u003e\n\u003cli\u003eThreads rolled after heat-treat to provide up to 10-times longer fatigue strength\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined to exacting specifications\u003c\/li\u003e\n\u003cli\u003eSpecially designed for optimum reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cul\u003e\n\u003cli\u003e⚠️ California Proposition 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm - \u003ca rel=\"noopener noreferrer nofollow\" href=\"http:\/\/www.P65Warnings.ca.gov\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":18356631633982,"sku":"arp202-4207","price":289.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/ARP-202-4207-A1.jpg?v=1548652870"},{"product_id":"nissan-skyline-r32-gtr-cylinder-block-to-head-dowel","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Block to Cylinder Head Locating Dowel RB26DETT","description":"\u003cp data-start=\"0\" data-end=\"609\"\u003eThe Nissan Skyline R32, R33, and R34 GTR demand precision and reliability in every engine component, and the Cylinder Block to Cylinder Head Locating Dowel for the RB26DETT is no exception. This genuine Nissan part ensures accurate alignment of the cylinder head to the engine block, a critical factor for maintaining proper sealing, combustion efficiency, and overall engine performance. Using the correct OEM dowel prevents misalignment that can compromise head gasket integrity, cause leaks, or reduce engine efficiency, making this component essential for rebuilds, maintenance, or performance upgrades.\u003c\/p\u003e\n\u003cp data-start=\"611\" data-end=\"1086\"\u003eManufactured to exact factory specifications, this authentic short and wide spring dowel fits precisely between the cylinder block and cylinder head. Its design ensures the head seats correctly on the block without shifting under operating conditions, maintaining proper compression and reliable engine operation. Over time, dowels can wear, bend, or be misplaced during servicing, and replacing them with genuine Nissan components preserves engine integrity and longevity.\u003c\/p\u003e\n\u003cp data-start=\"1088\" data-end=\"1549\"\u003eTerra Firma Automotive provides only OEM parts, guaranteeing your Skyline GTR receives components engineered to meet Nissan’s stringent standards. Installing this Cylinder Block to Cylinder Head Locating Dowel safeguards proper alignment, protects gasket surfaces, and ensures the performance and durability of your RB26DETT engine. Trust Terra Firma Automotive for authentic Nissan parts that maintain the precision and reliability your Skyline GTR deserves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 Required per GTR\u003c\/li\u003e\n\u003cli\u003e10mm Tall\u003c\/li\u003e\n\u003cli\u003e15mm Wide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356658896958,"sku":"01527-00031","price":7.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/1527-00031.jpg?v=1548652582"},{"product_id":"nissan-skyline-r32-late-r33-r34-gtr-valve-cover-bolt-13224-f650a","title":"Nissan Skyline R32 R33 Valve Cover Bolt RB26\/25\/20","description":"\u003cp\u003eElevate your Nissan Skyline R32 and R33's engine performance with Terra Firma Automotive's authentic Valve Cover Bolt for RB26\/25\/20 engines. Crafted by Nissan, this new genuine bolt ensures precise clearance and compression of the valve cover gasket, optimizing sealing. A direct replacement for the earlier style, most commonly found in the R32, it boasts a sleek silver finish. With 19 bolts needed per car, each unit guarantees impeccable fit and function.\u003c\/p\u003e\n\u003cp\u003eTerra Firma Automotive is your trusted source for premium components, dedicated to enhancing your driving experience. Our commitment to excellence ensures OEM-level parts that optimize both reliability and longevity.\u003c\/p\u003e\n\u003cp\u003eUpgrade confidently with Terra Firma Automotive. Benefit from swift shipping and exceptional customer service, reflecting our dedication to your satisfaction. Secure your Nissan Skyline R32 R33 Valve Cover Bolt RB26\/25\/20 today for superior engine performance. Choose Terra Firma Automotive for unparalleled solutions that redefine your driving journey.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e19 required per car, sold as each unit.\u003c\/li\u003e\n\u003cli\u003eNot for RB20E single cam motors.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356669841470,"sku":"13224-F650A","price":16.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/13224-F650A.jpg?v=1548652461"},{"product_id":"nissan-r32-r33-34-gtr-clynder-head-valve-guide-exhaust-13213-05u10","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head Valve Guide, Exhaust RB26DETT","description":"\u003cp\u003eNew Genuine Nissan R32, R33 and R34 GTR Exhaust Valve Guide. Correct unit for the RB26DETT motor. Must have replacement item when rebuild your complete engine or doing cylinder head work. 12 required per RB26 motor.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356669874238,"sku":"13213-05U10","price":17.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/13213-05U10.jpg?v=1548652460"},{"product_id":"nissan-skyline-r32-r33-r34-gtr-cylinder-head-oil-jet-plug","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head Oil Jet Plug (Rear) RB26DETT","description":"\u003cp data-start=\"105\" data-end=\"640\"\u003eThe Nissan Skyline R32, R33, and R34 GTR Cylinder Head Oil Jet Plug (Rear) for the RB26DETT engine is a precision-engineered solid steel plug designed to seal a specific rear oil gallery passage in the cylinder block. Although called a “jet,” this 5mm diameter by 5mm long plug functions purely as a solid sealing component, pressed into the rear-most port on the upper deck surface beneath the head gasket. Its purpose is to block the unused oil feed path, controlling oil distribution to critical components.\u003c\/p\u003e\n\u003cp data-start=\"642\" data-end=\"1197\"\u003eThis plug is vital for maintaining proper lubrication system balance, ensuring that oil volume is directed toward high-demand areas such as the crankshaft bearings, turbochargers, and forward oil feeds to the valvetrain. By sealing the rear port, it prevents excessive oil flow to the cylinder head that could overwhelm return paths, reduce oil pressure elsewhere, and cause aeration under high-load or boost conditions. Maintaining this OEM design feature preserves engine reliability, reduces windage in the head, and improves overall system efficiency.\u003c\/p\u003e\n\u003cp data-start=\"1199\" data-end=\"1633\"\u003eOne plug is required per engine block at the designated rear location, and it is recommended to replace this component during cylinder head installation or rebuilds to ensure proper sealing and alignment. Terra Firma Automotive supplies genuine Nissan parts to maintain optimal lubrication performance, safeguard critical RB26DETT components, and uphold the long-term reliability and high-performance standards of Skyline GTR engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne Required\u003c\/li\u003e\n\u003cli\u003e5mm Long\u003c\/li\u003e\n\u003cli\u003e5mm Wide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356669907006,"sku":"11036-05U00","price":3.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/11036-05U00.jpg?v=1548652458"},{"product_id":"nissan-r32-r33-34-gtr-clynder-head-valve-guide-intake-13212-05u10","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head Valve Guide, Intake RB26DETT","description":"\u003cp\u003eNew Genuine Nissan R32, R33 and R34 GTR Intake Valve Guide. Correct unit for the RB26DETT motor. Must have replacement item when rebuild your complete engine or doing cylinder head work. 12 required per RB26 motor.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356669939774,"sku":"13212-05U10","price":17.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/13212-05U10.jpg?v=1548652459"},{"product_id":"tomei-cam-cap-stud-set-rb26dett-for-r32-r33-r34-nissan-skyline-gtr-ta505a-ns05a","title":"Tomei Cam Cap Stud Set For Nissan RB26DETT TA505A-NS05A","description":"\u003cp dir=\"auto\"\u003eHigh-lift camshafts and elevated engine speeds place significantly greater loads on the cam caps than the original RB26DETT design anticipated. Stock fasteners can become a limiting factor once valve spring pressure and RPM increase, raising the risk of cap movement or thread issues over time. The Tomei Cam Cap Stud Set (part number TA505A-NS05A) replaces the factory hardware with stronger chrome-moly studs engineered to support more aggressive cam profiles and higher engine speeds.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eManufactured from SCM435 alloy, these studs are sized M6 x 1.00 and supplied as a complete set of 28 studs and 28 nuts. Tomei rates the set for use with cam lifts up to 12.0 mm and engine speeds approaching 10,000 rpm, giving builders greater confidence when installing performance camshafts. The improved clamping force helps maintain precise camshaft alignment and reduces the chance of issues related to insufficient fastener strength in high-output RB26 builds.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt Terra Firma Automotive, we supply this genuine Tomei Cam Cap Stud Set as a recommended upgrade for Skyline GT-R R32, R33, and R34 engines running aftermarket cams or higher RPM limits. It is a straightforward yet important reinforcement that supports long-term reliability when the valvetrain is pushed beyond stock specifications. Choose Terra Firma Automotive for authentic Tomei hardware that strengthens a critical area of the RB26 cylinder head.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Cam Cap Stud Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA505A-NS05A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eMaterial: SCM435 chrome-moly alloy\u003c\/li\u003e\n\u003cli\u003eThread size: M6 x 1.00\u003c\/li\u003e\n\u003cli\u003eKit includes 28 studs and 28 nuts\u003c\/li\u003e\n\u003cli\u003eSupports cam lifts up to 12.0 mm\u003c\/li\u003e\n\u003cli\u003eSuitable for engine speeds up to approximately 10,000 rpm\u003c\/li\u003e\n\u003cli\u003eSignificantly stronger than factory cam cap fasteners\u003c\/li\u003e\n\u003cli\u003eImproves clamping force on cam caps\u003c\/li\u003e\n\u003cli\u003eRecommended for high-lift camshaft installations\u003c\/li\u003e\n\u003cli\u003eHelps maintain camshaft alignment under load\u003c\/li\u003e\n\u003cli\u003eDirect fit for Skyline GT-R R32, R33, and R34\u003c\/li\u003e\n\u003cli\u003eEssential reinforcement for performance RB26 builds\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672528446,"sku":"TA505A-NS05A","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA505A-NS05A.jpg?v=1622347107"},{"product_id":"tomei-valve-guide-set-rb25-rb20-for-nissan-skyline-r32-r33-ta309a-ns06a","title":"Tomei Valve Guide Set RB25\/RB20 TA309A-NS06A","description":"\u003cp dir=\"auto\"\u003eHigh-output and high-RPM RB20 and RB25 engines place increased thermal and mechanical demands on the valvetrain. The Tomei Valve Guide Set (part number TA309A-NS06A) is a complete intake and exhaust set manufactured from phosphor bronze and designed for Nissan RB25DE(T) and RB20DE(T) engines, including NEO variants.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003ePhosphor bronze (a copper-tin-phosphorus alloy) provides excellent tensile strength combined with superior heat-transfer properties. These characteristics help the guides dissipate heat more effectively and maintain more consistent operating clearances under elevated temperatures. The material also offers lower friction than many conventional guides, reducing stress on the valvetrain and helping to minimize wear, seizure risk, and related issues when higher-lift camshafts or increased spring pressures are used.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis set is a logical upgrade during any serious cylinder head rebuild or performance valvetrain assembly on RB20 and RB25 engines. At Terra Firma Automotive, we supply this genuine Tomei Phosphor Bronze Valve Guide Set as a proven component for builders who need reliable geometry and durability. Whether the engine is being prepared for higher boost, higher RPM, or a refreshed performance head, these guides deliver the thermal and wear advantages associated with Tomei. Choose Terra Firma Automotive for authentic Japanese valvetrain components that support durable RB20 and RB25 cylinder heads.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Valve Guide Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA309A-NS06A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB25DE(T) and RB20DE(T)\u003c\/li\u003e\n\u003cli\u003eIncludes NEO variants\u003c\/li\u003e\n\u003cli\u003eComplete intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eMaterial: Phosphor bronze (Cu-Sn-P alloy)\u003c\/li\u003e\n\u003cli\u003eSuperior heat transfer characteristics\u003c\/li\u003e\n\u003cli\u003eLower friction than many standard guides\u003c\/li\u003e\n\u003cli\u003eHelps maintain consistent valve clearances\u003c\/li\u003e\n\u003cli\u003eReduces valvetrain stress and wear\u003c\/li\u003e\n\u003cli\u003eImproved resistance to seizure under high load\u003c\/li\u003e\n\u003cli\u003eSuitable for high-RPM and high-power builds\u003c\/li\u003e\n\u003cli\u003eIdeal for performance cylinder head rebuilds\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese valvetrain engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672659518,"sku":"TA309A-NS06A","price":432.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/TA309A-NS06A.jpg?v=1728583877"},{"product_id":"tomei-racing-valve-springs-without-retainers-rb26dett-for-nissan-skyline-r32-r33-r34-173001","title":"Tomei Racing Valve Springs, Type-A RB26DETT TA304A-NS05A","description":"\u003cp dir=\"auto\"\u003eControlling the valves accurately at elevated engine speeds is essential for any performance RB26DETT. The Tomei Racing Valve Springs Type-A (part number TA304A-NS05A) are engineered to support higher-lift camshafts and increased RPM while maintaining stable valve motion and reducing the risk of float or bounce.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eRated for compatible lift up to approximately 10.85 mm, these springs deliver a set load of 24.0 kgf and a lift load of 77.2 kgf. They are manufactured from oil-tempered chrome-silicon alloy steel (SWOSC-V) and receive a nitride surface treatment that significantly raises the fatigue limit. This combination improves durability under the repeated high-stress cycles of performance driving and allows the springs to absorb shock loads more effectively than stock units. The white color identification helps distinguish them during assembly.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eType-A springs are a popular choice for RB26 builds running mild to moderately aggressive cam profiles, providing the additional control needed for reliable operation near the 8,500 rpm range. At Terra Firma Automotive, we supply this genuine Tomei Type-A Valve Spring set for Skyline GT-R R32, R33, and R34 owners seeking a proven high-performance spring solution. Whether you are pairing them with Tomei camshafts or another aftermarket profile within the supported lift range, these springs offer the strength and consistency expected from Japanese race-engineered components. Choose Terra Firma Automotive for authentic Tomei valvetrain parts that support precise high-RPM control.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Racing Valve Springs Type-A\u003c\/li\u003e\n\u003cli\u003ePart Number: TA304A-NS05A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eFitment: Skyline GT-R R32 \/ R33 \/ R34 (and Stagea 260RS)\u003c\/li\u003e\n\u003cli\u003eCompatible lift: up to approximately 10.85 mm\u003c\/li\u003e\n\u003cli\u003eSet load: 24.0 kgf ±7%\u003c\/li\u003e\n\u003cli\u003eLift load: 77.2 kgf ±7%\u003c\/li\u003e\n\u003cli\u003eMaterial: SWOSC-V oil-tempered chrome-silicon alloy\u003c\/li\u003e\n\u003cli\u003eSurface treatment: Nitrided\u003c\/li\u003e\n\u003cli\u003eColor identification: White\u003c\/li\u003e\n\u003cli\u003eFree length: 44.0 mm\u003c\/li\u003e\n\u003cli\u003eSet length: 37.7 mm\u003c\/li\u003e\n\u003cli\u003eReference rev capability: approximately 8,500 rpm\u003c\/li\u003e\n\u003cli\u003eReduces valve float and bounce at higher RPM\u003c\/li\u003e\n\u003cli\u003eImproved fatigue resistance versus stock springs\u003c\/li\u003e\n\u003cli\u003eSuitable for mild to moderate high-lift camshafts\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672692286,"sku":"TA304A-NS05A","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/TA304A-NS05A.jpg?v=1728421612"},{"product_id":"tomei-valve-guide-set-rb26dett-for-nissan-skyline-r32-r33-r34-163046","title":"Tomei Valve Guide Set RB26DETT TA309A-NS05A","description":"\u003cp dir=\"auto\"\u003eHigh-RPM and high-output RB26DETT engines place significant thermal and mechanical stress on the valvetrain, making durable valve guides essential for long-term reliability. The Tomei Valve Guide Set (part number TA309A-NS05A) is a complete intake and exhaust set manufactured from phosphor bronze and specifically developed for the Nissan RB26DETT in the Skyline R32, R33, and R34 GT-R.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003ePhosphor bronze (a copper-tin-phosphorus alloy) offers excellent tensile strength combined with superior heat-transfer properties. These characteristics help the guides dissipate heat more effectively and maintain more consistent operating clearances under the elevated temperatures common in performance engines. The material also provides lower friction than many conventional guides, reducing stress on the valvetrain and helping to minimize wear, seizure risk, and related failures when aggressive camshafts or higher spring pressures are used.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis set is a logical upgrade during any serious cylinder head rebuild or performance valvetrain assembly. At Terra Firma Automotive, we supply this genuine Tomei Phosphor Bronze Valve Guide Set as a proven component for builders who demand reliable geometry and durability under demanding conditions. Whether the engine is being prepared for track use or a high-power street application, these guides deliver the thermal and wear advantages associated with Tomei’s performance parts. Choose Terra Firma Automotive for authentic Japanese valvetrain components that support durable RB26DETT cylinder heads.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Valve Guide Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA309A-NS05A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eComplete intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eMaterial: Phosphor bronze (Cu-Sn-P alloy)\u003c\/li\u003e\n\u003cli\u003eSuperior heat transfer characteristics\u003c\/li\u003e\n\u003cli\u003eLower friction than many standard guides\u003c\/li\u003e\n\u003cli\u003eHelps maintain consistent valve clearances\u003c\/li\u003e\n\u003cli\u003eReduces valvetrain stress and wear\u003c\/li\u003e\n\u003cli\u003eImproved resistance to seizure under high load\u003c\/li\u003e\n\u003cli\u003eSuitable for high-RPM and high-power builds\u003c\/li\u003e\n\u003cli\u003eIdeal for performance cylinder head rebuilds\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese valvetrain engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672725054,"sku":"TA309A-NS05A","price":432.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/TA309A-NS05A.jpg?v=1728583586"},{"product_id":"tomei-racing-valve-springs-b-type-with-retainers-rb26dett-for-nissan-skyline-r32-r33-r34-ta304a-ns06a","title":"Tomei Racing Valve Springs, Type-A RB25DET R33 GTS25T TA304A-NS06A","description":"\u003cp dir=\"auto\"\u003eHigher-lift or higher-RPM camshafts place greater demand on the valve springs to maintain control and prevent float. The Tomei Racing Valve Springs Type-A (part number TA304A-NS06A) are designed specifically for the Nissan RB25DET as used in the R33 GTS25T, providing increased spring control for performance applications while remaining compatible with hydraulic lash adjuster camshafts.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eManufactured from oil-tempered chromium-silicon alloy steel and enhanced with a nitride surface treatment, these springs offer improved fatigue resistance and durability under elevated loads and RPM. The Type-A specification is intended for lifts up to approximately 8.50 mm and is engineered to help suppress valve surge and bounce, supporting more consistent valvetrain behavior as engine speeds rise. Note that this set is not compatible with RB25 NEO engines.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese springs are a practical upgrade for R33 GTS25T builds moving beyond stock cam profiles or seeking better high-RPM stability. At Terra Firma Automotive, we supply this genuine Tomei Type-A Racing Valve Spring set as a reliable supporting component for RB25DET performance work. Whether the engine is being refreshed or fitted with mild-to-moderate performance cams, these springs deliver the material quality and control characteristics associated with Tomei. Choose Terra Firma Automotive for authentic Japanese valvetrain components that support durable RB25DET cylinder heads.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Racing Valve Springs\u003c\/li\u003e\n\u003cli\u003ePart Number: TA304A-NS06A\u003c\/li\u003e\n\u003cli\u003eType-A specification\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB25DET (R33 GTS25T)\u003c\/li\u003e\n\u003cli\u003eCompatible with hydraulic lash adjuster camshafts\u003c\/li\u003e\n\u003cli\u003eCompatible lift: up to approximately 8.50 mm\u003c\/li\u003e\n\u003cli\u003eNot compatible with RB25 NEO engines\u003c\/li\u003e\n\u003cli\u003eMaterial: Oil-tempered chromium-silicon alloy steel\u003c\/li\u003e\n\u003cli\u003eNitride surface treatment for improved durability\u003c\/li\u003e\n\u003cli\u003eHelps control valve motion at higher RPM\u003c\/li\u003e\n\u003cli\u003eReduces risk of valve surge and bounce\u003c\/li\u003e\n\u003cli\u003eSuitable for mild-to-moderate performance cam upgrades\u003c\/li\u003e\n\u003cli\u003eIdeal for R33 GTS25T performance builds\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese valvetrain engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003cli\u003eComes With Intake Retainers\u003c\/li\u003e\n\u003cli\u003eNOT compatible with NEO 6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672757822,"sku":"TA304A-NS06A","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/TA304A-NS06A.jpg?v=1728481783"},{"product_id":"tomei-racing-valve-set-rb26dett-for-nissan-skyline-r32-r33-r34-ta303a-ns05a","title":"Tomei Racing Valve Set RB26DETT TA303A-NS05A","description":"\u003cp dir=\"auto\"\u003eValve design has a direct influence on both airflow and long-term durability in a high-output RB26DETT. The Tomei Racing Valve Set (part number TA303A-NS05A) is a complete intake and exhaust package developed specifically for the Nissan RB26DETT, featuring a waisted stem profile and high-temperature materials suited to performance and boosted applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe waisted stem design reduces the cross-section in the critical flow area, allowing a greater volume of air and exhaust gas to pass around the valve as it opens. Intake valves are manufactured from SUH35 heat-resistant steel and receive a specialized coating to improve resistance to heat, wear, and corrosion. Exhaust valves are produced from Inconel 751, a nickel-based alloy chosen for its ability to withstand the extreme temperatures commonly encountered in turbocharged engines. Each valve is precision machined with attention to the head, face, stem, and lock groove to support reliable sealing and consistent operation.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis set is intended for serious RB26 builds where improved flow and elevated thermal resistance are required. At Terra Firma Automotive, we supply this genuine Tomei Racing Valve Set as a core valvetrain component for Skyline GT-R and other high-output RB26DETT projects. Whether the engine is being prepared for higher boost, higher RPM, or sustained track use, these valves deliver the material quality and flow-oriented design associated with Tomei. Choose Terra Firma Automotive for authentic Japanese performance valves that support durable, high-performance cylinder heads.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Racing Valve Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA303A-NS05A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eComplete intake and exhaust set\u003c\/li\u003e\n\u003cli\u003e65mm Intake Head Diameter\u003c\/li\u003e\n\u003cli\u003e97mm Intake Stem Diameter\u003c\/li\u003e\n\u003cli\u003e30mm Intake Length\u003c\/li\u003e\n\u003cli\u003e15mm Exhaust Head Diameter\u003c\/li\u003e\n\u003cli\u003e94mm Exhaust Stem Diameter\u003c\/li\u003e\n\u003cli\u003e20mm Exhaust Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe waisted stem allows a greater volume of air\/gases to enter and exit the combustion chamber as the valve extends.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/valve1_large.jpg?v=1511461922\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eEach valve is designed and precision machined specifically for the intended engine\/application. The head, face, stem and lock groove designs have also been optimized to enhance sealing performance, efficiency and durability.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/valve04_large.jpg?v=1511461940\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe intake valves are made using SUH35 HEAT RESISTANT STEEL which is more commonly used to make exhaust valves. These are then coated with a special formula that further improves the valves' resistance to heat, wear and corrosion. In order to withstand temperatures of up to around 1000℃, the exhaust valves are made using a nickel based heat resistant alloy, INCONEL 751.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/valve05_large.jpg?v=1511461955\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672823358,"sku":"TA303A-NS05A","price":830.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TOM_TA303A-NS05A.jpg?v=1548652432"},{"product_id":"tomei-camshaft-set-procam-rb26-292-11-50-for-nissan-skyline-r32-r33-ta301a-ns05j","title":"Tomei Camshaft Set, Procam RB26DETT 292-11.50 R32 R33 GTR\/260RS Stagea, TA301A-NS05J","description":"\u003cp\u003eTomei camshaft have gain world wide recognition for performance, race and streetability. \u003cstrong\u003e'\u003c\/strong\u003e\u003cspan\u003e'VALC' profile features- \u003c\/span\u003e\u003cspan\u003eVelocity, Acceleration, Lift, Control. The VALC profile allows the valves to open faster and longer. This translates simply to faster lift and increased area under the lift curve. This generates much more power than other camshaft profiles (greater area under the lift curve = greater air intake). \u003c\/span\u003eThe VALC profile ensures that the valves close at a slower rate, helping to prevent common valve train related issues. With a conventional direct-acting valve train, the maximum lift is usually determined by the size\/diameter of the valve lifter. Selecting a high-lift camshaft without taking this into consideration often results in the camshaft lobes travelling beyond the surface of the valve lifter. This causes the lobe to make contact with the edge of the lifter, damaging both components over time.Therefore, the ideal performance orientated high-lift camshaft needs to have a profile that maximizes lobe travel on the lifter without exceeding the outer edge.\u003cbr\u003e \u003cbr\u003e VALC profile camshafts have achieved this ideal by deliberately reducing the maximum cam velocity to limit lobe travel on the lifter surface.　（Maximum cam velocity = lobe travel distance on lifter)\u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecial Order Item - Please Allow Extra Time For Delivery Please Call For Availability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672954430,"sku":"TA301A-NS05J","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_19ca178a-4163-4969-9654-045a086d9985.jpg?v=1548652430"},{"product_id":"tomei-camshaft-set-procam-rb26-282-10-80-for-nissan-skyline-r34-ta301a-ns05k","title":"Tomei Camshaft Set, Procam RB26DETT 282-10.80 For Nissan Skyline R34 GTR TA301A-NS05K","description":"\u003cp dir=\"auto\"\u003eCamshaft selection plays a major role in how an RB26DETT makes power. The Tomei Procam Camshaft Set (part number TA301A-NS05K) is a matched intake and exhaust pair designed for the Nissan RB26DETT, specifically suited to the Skyline R34 GT-R, with a 282° duration and 10.80 mm lift profile aimed at higher-output applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTomei’s VALC profile (Velocity, Acceleration, Lift, Control) is engineered to open the valves more aggressively and hold them open longer relative to many conventional designs of similar duration. This increases the effective area under the lift curve, supporting greater airflow and improved power potential. At the same time, the profile is developed to control valve closing rates and lobe travel on the lifter surface, helping reduce unnecessary valvetrain stress when the camshafts are properly matched with supporting components.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese Procam shafts are intended for performance-oriented builds where increased airflow and stronger mid-to-high RPM output are priorities. Supporting upgrades such as appropriate valve springs, and professional engine management tuning, are typically required to realize the full benefit and ensure reliability. At Terra Firma Automotive, we supply this genuine Tomei Procam 282-10.80 Camshaft Set as a serious valvetrain upgrade for R34 GT-R and RB26DETT builders. Choose Terra Firma Automotive for authentic Japanese performance camshafts that support capable, high-output RB26 builds.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Procam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS05K\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eFitment focus: Skyline R34 GT-R (BNR34)\u003c\/li\u003e\n\u003cli\u003eDuration: 282°\u003c\/li\u003e\n\u003cli\u003eLift: 10.80 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eVALC profile (Velocity, Acceleration, Lift, Control)\u003c\/li\u003e\n\u003cli\u003eDesigned for higher power applications\u003c\/li\u003e\n\u003cli\u003eIncreased effective airflow potential\u003c\/li\u003e\n\u003cli\u003eControlled valve acceleration and closing characteristics\u003c\/li\u003e\n\u003cli\u003eRequires supporting valvetrain components and proper tuning\u003c\/li\u003e\n\u003cli\u003eSuitable for performance and high-output builds\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356672987198,"sku":"TA301A-NS05K","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05_8166f155-3c91-49d0-a716-7d26d3763b94.jpg?v=1548652430"},{"product_id":"tomei-camshaft-set-procam-rb26-272-10-25-for-nissan-skyline-r34-ta301a-ns05f","title":"Tomei Camshaft Set, Procam RB26DETT 272-10.25 For Nissan Skyline R34 GTR TA301A-NS05F","description":"\u003cp dir=\"auto\"\u003eCamshaft choice has a direct influence on how an RB26DETT delivers power and drivability. The Tomei Procam Camshaft Set (part number TA301A-NS05F) is a matched intake and exhaust pair designed for the Nissan RB26DETT, with particular suitability for the Skyline R34 GT-R, featuring a 272° duration and 10.25 mm lift profile that balances improved performance with stronger street manners than more aggressive specifications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTomei’s VALC profile (Velocity, Acceleration, Lift, Control) is engineered to open the valves more effectively and maintain greater area under the lift curve relative to many conventional designs of similar duration. This supports increased airflow and improved power potential while controlling valve acceleration and closing rates to help limit unnecessary valvetrain stress. The result is a camshaft package well suited to builds seeking noticeable gains without moving fully into race-only territory.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese Procam 272-10.25 shafts are a popular choice for performance-oriented R34 GT-R and RB26DETT engines where stronger mid-range and upper-rpm output are desired alongside usable street characteristics. Supporting components and proper engine management tuning are recommended to extract the full benefit and ensure reliable operation. At Terra Firma Automotive, we supply this genuine Tomei Procam Camshaft Set as a capable upgrade for builders seeking a refined step up from stock. Choose Terra Firma Automotive for authentic Japanese performance camshafts that support well-rounded RB26 builds.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Procam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS05F\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eFitment focus: Skyline R34 GT-R (BNR34)\u003c\/li\u003e\n\u003cli\u003eDuration: 272°\u003c\/li\u003e\n\u003cli\u003eLift: 10.25 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eVALC profile (Velocity, Acceleration, Lift, Control)\u003c\/li\u003e\n\u003cli\u003eBalanced performance and drivability characteristics\u003c\/li\u003e\n\u003cli\u003eIncreased effective airflow potential versus stock\u003c\/li\u003e\n\u003cli\u003eControlled valve acceleration and closing rates\u003c\/li\u003e\n\u003cli\u003eSuitable for street and performance builds\u003c\/li\u003e\n\u003cli\u003eSupporting valvetrain and tuning recommended\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673019966,"sku":"TA301A-NS05F","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05_315d5b0b-cc37-494d-a0a4-5449b9b792c6.jpg?v=1548652428"},{"product_id":"tomei-camshaft-set-procam-rb26-282-10-80-for-nissan-skyline-r34-ta301a-ns05h","title":"Tomei Camshaft Set, Procam RB26DETT 282-10.80 For Nissan Skyline R34 GTR, TA301A-NS05H","description":"\u003cp\u003eTomei camshaft have gain world wide recognition for performance, race and streetability. \u003cstrong\u003e'\u003c\/strong\u003e\u003cspan\u003e'VALC' profile features- \u003c\/span\u003e\u003cspan\u003eVelocity, Acceleration, Lift, Control. The VALC profile allows the valves to open faster and longer. This translates simply to faster lift and increased area under the lift curve. This generates much more power than other camshaft profiles (greater area under the lift curve = greater air intake). \u003c\/span\u003eThe VALC profile ensures that the valves close at a slower rate, helping to prevent common valve train related issues. With a conventional direct-acting valve train, the maximum lift is usually determined by the size\/diameter of the valve lifter. Selecting a high-lift camshaft without taking this into consideration often results in the camshaft lobes travelling beyond the surface of the valve lifter. This causes the lobe to make contact with the edge of the lifter, damaging both components over time.Therefore, the ideal performance orientated high-lift camshaft needs to have a profile that maximizes lobe travel on the lifter without exceeding the outer edge.\u003cbr\u003e \u003cbr\u003e VALC profile camshafts have achieved this ideal by deliberately reducing the maximum cam velocity to limit lobe travel on the lifter surface.　（Maximum cam velocity = lobe travel distance on lifter)\u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecial Order Item - Please Allow Extra Time For Delivery Please Call For Availability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673052734,"sku":"TA301A-NS05H","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05_585adcd4-c91d-4d84-92a0-9cde8d456402.jpg?v=1548652428"},{"product_id":"tomei-camshaft-set-procam-rb26-282-10-80-for-nissan-skyline-r32-r33-ta301a-ns05g","title":"Tomei Camshaft Set, Procam RB26DETT 282-10.80 R32 R33 GTR\/260RS Stagea TA301A-NS05G","description":"\u003cp dir=\"auto\"\u003eCamshaft selection has a direct impact on the power characteristics of an RB26DETT. The Tomei Procam Camshaft Set (part number TA301A-NS05G) is a matched intake and exhaust pair designed for the Nissan RB26DETT in the Skyline R32 and R33 GT-R as well as the Stagea 260RS, featuring a 282° duration and 10.80 mm lift profile intended for higher-output applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTomei’s VALC profile (Velocity, Acceleration, Lift, Control) is developed to open the valves more aggressively and sustain greater area under the lift curve compared with many conventional profiles of similar duration. This supports increased airflow and stronger power potential while managing valve acceleration and closing rates to help limit unnecessary stress on the valvetrain when properly supported. The result is a camshaft package suited to builds seeking significant mid-to-high RPM gains.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese Procam 282-10.80 shafts are aimed at performance-oriented R32\/R33 GT-R and Stagea 260RS engines where increased output is the priority. Supporting valvetrain components and professional engine management tuning are typically required to realize the full benefit and maintain reliability. At Terra Firma Automotive, we supply this genuine Tomei Procam Camshaft Set as a serious upgrade for earlier RB26DETT platforms. Choose Terra Firma Automotive for authentic Japanese performance camshafts that support capable high-output builds on the R32, R33, and Stagea 260RS.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Procam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS05G\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDuration: 282°\u003c\/li\u003e\n\u003cli\u003eLift: 10.80 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eVALC profile (Velocity, Acceleration, Lift, Control)\u003c\/li\u003e\n\u003cli\u003eDesigned for higher power applications\u003c\/li\u003e\n\u003cli\u003eIncreased effective airflow potential\u003c\/li\u003e\n\u003cli\u003eControlled valve acceleration and closing characteristics\u003c\/li\u003e\n\u003cli\u003eRequires supporting valvetrain components and proper tuning\u003c\/li\u003e\n\u003cli\u003eSuitable for performance and high-output builds\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673085502,"sku":"TA301A-NS05G","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_e56aa2dc-32e8-47e9-90ee-9ccc6f1b8e21.jpg?v=1548652428"},{"product_id":"tomei-camshaft-set-procam-rb26-262-9-15-for-nissan-skyline-r34-ta301a-ns05d","title":"Tomei Camshaft Set, Poncam RB26DETT 262-9.15 For Nissan Skyline R34, TA301A-NS05D","description":"\u003cp\u003eTomei camshaft have gain world wide recognition for performance, race and streetability. \u003cstrong\u003e'\u003c\/strong\u003e\u003cspan\u003e'VALC' profile features- \u003c\/span\u003e\u003cspan\u003eVelocity, Acceleration, Lift, Control. The VALC profile allows the valves to open faster and longer. This translates simply to faster lift and increased area under the lift curve. This generates much more power than other camshaft profiles (greater area under the lift curve = greater air intake). \u003c\/span\u003eThe VALC profile ensures that the valves close at a slower rate, helping to prevent common valve train related issues. With a conventional direct-acting valve train, the maximum lift is usually determined by the size\/diameter of the valve lifter. Selecting a high-lift camshaft without taking this into consideration often results in the camshaft lobes travelling beyond the surface of the valve lifter. This causes the lobe to make contact with the edge of the lifter, damaging both components over time.Therefore, the ideal performance orientated high-lift camshaft needs to have a profile that maximizes lobe travel on the lifter without exceeding the outer edge.\u003cbr\u003e \u003cbr\u003e VALC profile camshafts have achieved this ideal by deliberately reducing the maximum cam velocity to limit lobe travel on the lifter surface.　（Maximum cam velocity = lobe travel distance on lifter)\u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecial Order Item - Please Allow Extra Time For Delivery Please Call For Availability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673118270,"sku":"TA301A-NS05D","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05_d58524da-b480-4925-ac5b-7e860f530e79.jpg?v=1548652428"},{"product_id":"tomei-camshaft-set-procam-rb26-272-10-25-for-nissan-skyline-r32-r33-ta301a-ns05e","title":"Tomei Camshaft Set, Procam RB26DETT 272-10.25 R32 R33 GTR\/260RS Stagea, TA301A-NS05E","description":"\u003cp\u003eTomei camshaft have gain world wide recognition for performance, race and streetability. \u003cstrong\u003e'\u003c\/strong\u003e\u003cspan\u003e'VALC' profile features- \u003c\/span\u003e\u003cspan\u003eVelocity, Acceleration, Lift, Control. The VALC profile allows the valves to open faster and longer. This translates simply to faster lift and increased area under the lift curve. This generates much more power than other camshaft profiles (greater area under the lift curve = greater air intake). \u003c\/span\u003eThe VALC profile ensures that the valves close at a slower rate, helping to prevent common valve train related issues. With a conventional direct-acting valve train, the maximum lift is usually determined by the size\/diameter of the valve lifter. Selecting a high-lift camshaft without taking this into consideration often results in the camshaft lobes travelling beyond the surface of the valve lifter. This causes the lobe to make contact with the edge of the lifter, damaging both components over time.Therefore, the ideal performance orientated high-lift camshaft needs to have a profile that maximizes lobe travel on the lifter without exceeding the outer edge.\u003cbr\u003e \u003cbr\u003e VALC profile camshafts have achieved this ideal by deliberately reducing the maximum cam velocity to limit lobe travel on the lifter surface.　（Maximum cam velocity = lobe travel distance on lifter)\u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecial Order Item - Please Allow Extra Time For Delivery Please Call For Availability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673151038,"sku":"TA301A-NS05E","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_f486291a-0ac7-45ee-a6bc-4dcd13a18d7e.jpg?v=1548652426"},{"product_id":"tomei-camshaft-set-procam-rb26-254-9-15-for-nissan-skyline-r34-ta301a-ns05b","title":"Tomei Camshaft Set, Poncam RB26DETT 254-9.15 For Nissan Skyline R34, TA301A-NS05B","description":"\u003cp\u003eTomei camshaft have gain world wide recognition for performance, race and streetability. \u003cstrong\u003e'\u003c\/strong\u003e\u003cspan\u003e'VALC' profile features- \u003c\/span\u003e\u003cspan\u003eVelocity, Acceleration, Lift, Control. The VALC profile allows the valves to open faster and longer. This translates simply to faster lift and increased area under the lift curve. This generates much more power than other camshaft profiles (greater area under the lift curve = greater air intake). \u003c\/span\u003eThe VALC profile ensures that the valves close at a slower rate, helping to prevent common valve train related issues. With a conventional direct-acting valve train, the maximum lift is usually determined by the size\/diameter of the valve lifter. Selecting a high-lift camshaft without taking this into consideration often results in the camshaft lobes travelling beyond the surface of the valve lifter. This causes the lobe to make contact with the edge of the lifter, damaging both components over time.Therefore, the ideal performance orientated high-lift camshaft needs to have a profile that maximizes lobe travel on the lifter without exceeding the outer edge.\u003cbr\u003e \u003cbr\u003e VALC profile camshafts have achieved this ideal by deliberately reducing the maximum cam velocity to limit lobe travel on the lifter surface.　（Maximum cam velocity = lobe travel distance on lifter)\u003c\/p\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecial Order Item - Please Allow Extra Time For Delivery Please Call For Availability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cbr\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673216574,"sku":"TA301A-NS05B","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05.jpg?v=1548652426"},{"product_id":"tomei-camshaft-set-procam-rb26-254-9-15-for-nissan-skyline-r32-r33-ta301a-ns05a","title":"Tomei Camshaft Set, Poncam RB26DETT 254-9.15 R32 R33 GTR\/260RS Stagea TA301A-NS05A","description":"\u003cp dir=\"auto\"\u003eA well-chosen camshaft package can improve response and usable power without sacrificing everyday drivability. The Tomei Poncam Camshaft Set (part number TA301A-NS05A) is a matched intake and exhaust pair designed for the Nissan RB26DETT in the Skyline R32 and R33 GT-R as well as the Stagea 260RS, featuring a milder 254° duration and 9.15 mm lift profile suited to street and mild performance applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTomei’s VALC profile (Velocity, Acceleration, Lift, Control) is engineered to open the valves more effectively and increase the area under the lift curve relative to many conventional designs of similar duration. This supports improved airflow and a noticeable gain in performance while maintaining controlled valve motion that helps limit unnecessary valvetrain stress. The more conservative specification makes these cams a practical upgrade for builds seeking better response and power without moving into aggressive high-lift territory.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese Poncam 254-9.15 shafts are a popular choice for R32\/R33 GT-R and Stagea 260RS owners looking for a refined step up from stock while retaining strong street manners. Proper installation and appropriate engine management adjustments are recommended to realize the full benefit. At Terra Firma Automotive, we supply this genuine Tomei Poncam Camshaft Set as an accessible performance upgrade for earlier RB26DETT platforms. Choose Terra Firma Automotive for authentic Japanese camshafts that support balanced, usable power gains on the R32, R33, and Stagea 260RS.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Poncam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS05A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDuration: 254°\u003c\/li\u003e\n\u003cli\u003eLift: 9.15 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eVALC profile (Velocity, Acceleration, Lift, Control)\u003c\/li\u003e\n\u003cli\u003eMilder specification for strong street drivability\u003c\/li\u003e\n\u003cli\u003eImproved airflow and response versus stock\u003c\/li\u003e\n\u003cli\u003eControlled valve acceleration and closing characteristics\u003c\/li\u003e\n\u003cli\u003eSuitable for street and mild performance builds\u003c\/li\u003e\n\u003cli\u003ePractical upgrade from factory camshafts\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift\/performance gains.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673347646,"sku":"TA301A-NS05A","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W.jpg?v=1548652422"},{"product_id":"copy-of-tomei-camshaft-set-procam-rb26-262-9-15-for-nissan-skyline-r32-r33-ta301a-ns05c","title":"Tomei Camshaft Set, Poncam RB26DETT 262-9.15 R32 R33 GTR\/C34 260RS Stagea TA301A-NS05C","description":"\u003cp dir=\"auto\"\u003eImproving camshaft profile is one of the most effective ways to unlock additional response and power from the RB26DETT without requiring extensive supporting modifications. The Tomei Poncam Camshaft Set (part number TA301A-NS05C) features a 262° duration and 9.15 mm lift on both intake and exhaust, offering a balanced upgrade for the Nissan Skyline R32 GT-R, R33 GT-R, and Stagea C34 260RS.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eDesigned as a bolt-on friendly performance camshaft, the Poncam profile delivers noticeable gains in mid-range torque and top-end power while maintaining a stable idle and good drivability. Valve timing is pre-set for straightforward installation, and the relatively moderate 9.15 mm lift allows the cams to work with the factory valve springs in many applications. This makes the set particularly well suited to vehicles running stock or mildly upgraded turbos where improved airflow and sharper throttle response are the primary goals.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe Tomei Poncam represents a practical first step into performance camshafts for RB26 owners who want measurable results without moving to more aggressive, high-maintenance profiles. At Terra Firma Automotive, we supply this genuine Tomei 262-9.15 Camshaft Set as a proven upgrade for R32, R33, and Stagea 260RS builds. Whether you are refreshing a tired factory setup or pairing the cams with supporting bolt-ons, these Japanese-engineered camshafts provide a reliable path to improved engine character and performance. Choose Terra Firma Automotive for authentic Tomei components trusted by RB26 enthusiasts.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Poncam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS05C\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26DETT\u003c\/li\u003e\n\u003cli\u003eFitment: Skyline R32 GT-R \/ R33 GT-R \/ Stagea C34 260RS\u003c\/li\u003e\n\u003cli\u003eDuration: 262° (intake and exhaust)\u003c\/li\u003e\n\u003cli\u003eLift: 9.15 mm\u003c\/li\u003e\n\u003cli\u003eMild performance profile for bolt-on upgrades\u003c\/li\u003e\n\u003cli\u003eCompatible with stock valve springs in many setups\u003c\/li\u003e\n\u003cli\u003ePre-set valve timing for easier installation\u003c\/li\u003e\n\u003cli\u003eMaintains stable idle and good drivability\u003c\/li\u003e\n\u003cli\u003eImproves mid-range torque and top-end response\u003c\/li\u003e\n\u003cli\u003eIdeal for stock or mildly upgraded turbo applications\u003c\/li\u003e\n\u003cli\u003eLinear power delivery characteristics\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese performance camshaft design\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/cam_angle_large.jpg?v=1511403232\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eStrict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/phase-angle-image_large.jpg?v=1511403165\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimized 'velocity' and 'acceleration'.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eDesigned for high power setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOptimizes engine performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHigher lift than other profiles of the duration.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced stress\/wear on the valve train.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18356673380414,"sku":"TA301A-NS05C","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_244ccd1a-dda3-4850-a02b-2b8d3104e9f0.jpg?v=1548652423"},{"product_id":"nissan-r32-r33-34-gtr-r32-gtst-gts4-cylinder-head-mount-bolt-01121-05301","title":"Nissan Skyline R32 R33 R34 Cylinder Head Mount Bolt RB26\/25\/20","description":"\u003cp\u003eNew Genuine Nissan Skyline RB26\/25\/20 Cylinder Head Rear Mount Bolt. Sold as each, 2 required per car.  \u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356673806398,"sku":"01121-05301","price":2.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/01121-05301.jpg?v=1548652415"},{"product_id":"nissan-skyline-r32-r33-34-gtr-r32-gtst-gts4-cylinder-head-welch-plug","title":"Nissan Skyline R32 R33 R34 Cylinder Head Welch Plug RB26\/25\/20","description":"\u003cp data-start=\"92\" data-end=\"710\"\u003eThe Nissan Skyline R32, R33, and R34 Cylinder Head Welch Plug for RB26, RB25, and RB20 engines is a genuine OEM component designed to maintain the integrity of your engine’s cooling system. This precision-engineered plug seals critical access points in the cylinder head’s internal water jacket, preventing coolant leaks and ensuring optimal pressure and flow through the cooling passages. Proper sealing is essential for maintaining stable operating temperatures, avoiding hot spots, and protecting key components such as valves, combustion chambers, and exhaust ports during high-performance or high-RPM operation.\u003c\/p\u003e\n\u003cp data-start=\"712\" data-end=\"1219\"\u003eConstructed to OEM specifications, this tapered, threaded Welch plug features the correct allen slot for proper installation, guaranteeing a secure and leak-free fit. It is commonly replaced during cylinder head removal, resurfacing, or full engine rebuilds to maintain reliable cooling system performance and prevent corrosion or coolant loss. Using authentic Nissan components ensures that your Skyline’s RB-series engine maintains factory-grade reliability, thermal stability, and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"1221\" data-end=\"1585\"\u003eTerra Firma Automotive supplies these hard-to-find genuine plugs, making them an essential item for restorers, performance enthusiasts, or anyone performing precision engine maintenance. Install the correct Nissan Welch plug to safeguard your Skyline engine, protect your investment, and preserve the performance and longevity of your RB26, RB25, or RB20 engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3 required per cylinder head.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356673871934,"sku":"11051-D0101","price":12.62,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/11051-D0101.jpg?v=1548652413"},{"product_id":"nissan-skyline-r32-r33-34-gtr-cylinder-head-rb26dett-bare-11040-05u00-11040-rhr20","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head, RB26DETT Bare","description":"\u003cp\u003eNew Genuine Nissan R32, R33 and R34 GTR bare RB26DETT bare aluminum cylinder head. Ready for factory replacement or modification for high performance race or street use. Add your camshaft and other valve train parts. Ships completely bare. \u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356675739710,"sku":"11040-05U00","price":865.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/11040-05U00.jpg?v=1548652399"},{"product_id":"nissan-skyline-r32-r33-34-gtr-r32-gtst-gts4-cylinder-head-bolt-kit-tfa-110023kt","title":"Nissan Skyline R32 R33 R34 GTR RB26DETT Cylinder Head Bolt Kit","description":"\u003cp\u003eIntroducing the Nissan Skyline R32 R33 R34 GTR RB26DETT Cylinder Head Bolt Kit, exclusively available at Terra Firma. This genuine Nissan cylinder head bolt kit is designed to provide a reliable and secure solution for bolting your RB26 head back on.\u003c\/p\u003e\n\u003cp\u003eOur comprehensive kit includes 14 hardened bolts and 14 washers, ensuring that you have all the necessary hardware to complete the installation with confidence. It is crucial to replace old cylinder head bolts as they can stretch under torque, compromising the integrity of the engine. By using our high-quality bolts, you can ensure optimal performance and peace of mind.\u003c\/p\u003e\n\u003cp\u003eAt Terra Firma, we are committed to providing enthusiasts with top-quality, genuine Nissan parts. Our Cylinder Head Bolt Kit is assembled with care to meet the highest standards of performance and durability. We understand the importance of using reliable hardware for engine components, and that's why we offer this complete kit for your RB26 engine.\u003c\/p\u003e\n\u003cp\u003eUpgrade your Nissan Skyline R32, R33, or R34 GTR with the Nissan Skyline R32 R33 R34 GTR RB26DETT Cylinder Head Bolt Kit from Terra Firma. Experience the difference in quality and reliability that genuine Nissan parts provide.\u003c\/p\u003e\n\u003cp\u003eDon't miss out on this opportunity to secure your kit, as quantities are limited. Trust in Terra Firma for all your Nissan performance needs. Kit Contains Obsolete Items! Limited Quantities Remain.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eKit Contains Obsolete Items! Limited Quantities Remain\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356680163390,"sku":"TFA-110023KT","price":569.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110023KT.jpg?v=1548652347"},{"product_id":"nissan-r32-r33-34-gtr-r32-gtst-gts4-cam-cap-bolts-washers-set-tfa-110022kt","title":"Nissan Skyline R32 R33 GTR RB26 Cam Cap Bolts \u0026 Washers Set","description":"\u003cp\u003eUpgrade your RB26 engine with the Nissan Skyline R32 R33 GTR RB26 Cam Cap Bolts \u0026amp; Washers Set from Terra Firma. This genuine Nissan set includes the correct OEM bolts and washers used to secure the camshaft caps against the cylinder head.\u003c\/p\u003e\n\u003cp\u003eDuring an engine rebuild, it's crucial to replace the cam cap bolts and washers as they can stretch under torque. By using the correct factory units, you ensure optimal performance and reliability.\u003c\/p\u003e\n\u003cp\u003eThe set is specifically designed for R32 and R33 GTR models, providing a perfect fit and maintaining the integrity of your engine. With Terra Firma's commitment to quality, you can trust that these genuine Nissan components meet the highest standards.\u003c\/p\u003e\n\u003cp\u003eDon't compromise the performance and longevity of your RB26 engine. Upgrade to the Nissan Skyline R32 R33 GTR RB26 Cam Cap Bolts \u0026amp; Washers Set from Terra Firma, and experience the peace of mind that comes with using genuine OEM parts.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356680785982,"sku":"TFA-110022KT","price":931.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110022KT.jpg?v=1548652336"},{"product_id":"nissan-skyline-r32-r33-r34-gtr-cylinder-head-oil-jet","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head Oil Jet (Front) RB26DETT","description":"\u003cp data-start=\"117\" data-end=\"656\"\u003eThe Nissan Skyline R32, R33, and R34 GTR Cylinder Head Oil Jet (Front) for the RB26DETT engine is a precision-engineered steel component designed to direct pressurized oil from the block into the cylinder head. This small jet, approximately 5mm long by 5mm in diameter, is installed in a machined port on the upper deck of the cylinder block beneath the head gasket, typically in the forward oil feed positions. Its purpose is to ensure the cylinder head and valvetrain receive consistent lubrication under high-RPM and boosted conditions.\u003c\/p\u003e\n\u003cp data-start=\"658\" data-end=\"1197\"\u003eThe oil jet features a calibrated central orifice of about 1mm, which meters oil into the cylinder head galleries to lubricate camshaft bearings, hydraulic lash adjusters, and other valvetrain components. This targeted flow is critical for reducing friction, dissipating heat, and preventing wear or failure in the high-performance RB26DETT engine. Unlike the solid rear plug that blocks unused passages, this front jet actively channels oil where it is needed, maintaining reliability and efficiency across all Skyline GT-R generations.\u003c\/p\u003e\n\u003cp data-start=\"1199\" data-end=\"1562\"\u003eThis component is commonly replaced during cylinder head removal, gasket changes, or full engine rebuilds to prevent flow restrictions caused by debris or damage. Terra Firma Automotive supplies genuine Nissan parts to ensure your RB26DETT engine maintains optimal lubrication, performance, and long-term durability in Skyline R32, R33, and R34 GT-R applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne Required\u003c\/li\u003e\n\u003cli\u003e5mm Long\u003c\/li\u003e\n\u003cli\u003e5mm Wide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356681048126,"sku":"11047-E3000","price":2.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/11047-E3000-A1.jpg?v=1759525963"},{"product_id":"nissan-skyline-r32-r33-34-gtr-r32-gtst-gts4-cylinder-head-plug","title":"Nissan Skyline R32 R33 R34 Cylinder Head Coolant Passage Plug RB26\/25\/20","description":"\u003cp data-start=\"0\" data-end=\"659\"\u003eThe Nissan Skyline R32, R33, and R34 Cylinder Head Coolant Passage Plug for RB26, RB25, and RB20 engines is a precision-engineered component designed to maintain optimal cooling system integrity. Installed in threaded holes along the intake or exhaust sides of the cylinder head, this taper plug, also known as a blind thread or coolant gallery sealing plug, ensures the ends of internal coolant passages are securely sealed. By preventing leaks and maintaining proper coolant flow, it protects the engine from overheating, hot spots, and corrosion, which is especially critical during high-boost or high-RPM operation common in performance RB-series engines.\u003c\/p\u003e\n\u003cp data-start=\"661\" data-end=\"1188\"\u003eConstructed from durable steel with an M12x1.25 thread and a slight taper, the plug expands when torqued to create a reliable, gasket-free seal. Its role in preserving coolant pressure and preventing air ingress ensures consistent thermal management, safeguarding critical components such as the combustion chambers, valves, and exhaust ports. This plug is routinely inspected or replaced during cylinder head servicing, resurfacing, or full engine rebuilds to avoid stripped threads, leaks, or coolant system inefficiencies.\u003c\/p\u003e\n\u003cp data-start=\"1190\" data-end=\"1558\"\u003eTerra Firma Automotive supplies genuine Nissan Cylinder Head Coolant Passage Plugs, ensuring the highest quality and OEM-standard fitment. Installing the correct plug preserves engine reliability, supports efficient thermal management, and maintains the performance and longevity of Skyline R32, R33, and R34 engines in both street and high-performance applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6 Required Per Cylinder Head\u003c\/li\u003e\n\u003cli\u003eSold As Each\u003c\/li\u003e\n\u003cli\u003eNot For RB20E Single Cam Motors\u003c\/li\u003e\n\u003cli\u003e20mm Wide\u003c\/li\u003e\n\u003cli\u003e10mm High\u003c\/li\u003e\n\u003cli\u003eM12x1.25 Thread\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356681080894,"sku":"11048-14606","price":4.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/11048-14606.jpg?v=1548652329"},{"product_id":"nissan-skyline-r32-r33-r34-gtr-camshaft-valve-shim-13229-04u00","title":"Nissan Camshaft Valve Shim RB26DETT","description":"\u003cp\u003eThe Nissan Camshaft Valve Shim for the RB26DETT is a crucial component for maintaining precise engine performance in your high-performance Nissan. Available at Terra Firma Automotive, this genuine OEM part ensures the proper adjustment of valve play, a critical factor for optimal engine efficiency and longevity.\u003c\/p\u003e\n\u003cp\u003eCrafted from hardened steel, these valve shims are precision-ground to exact specifications, achieving thickness variations down to thousandths of an inch. This meticulous manufacturing process guarantees the reliability and consistency required for the demanding performance of RB26DETT engines. With sizes ranging from 2.275mm to 3.310mm, these shims are designed to meet the diverse needs of RB26-powered vehicles, including the iconic Nissan Skyline GTR models R32, R33, R34, and the Stagea 260RS.\u003c\/p\u003e\n\u003cp\u003eUnlike reproductions, these are original equipment units, ensuring compatibility and performance that align with factory standards. Proper valve adjustment using these shims not only maximizes power output but also minimizes wear, extending the life of your engine components.\u003c\/p\u003e\n\u003cp\u003eFor RB26DETT-powered vehicles, trust Terra Firma Automotive to provide authentic Nissan camshaft valve shims that meet the highest standards of quality and precision. 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These small yet essential components are notorious for going missing, but we've got you covered with this high-quality dowel kit.\u003c\/p\u003e\n\u003cp\u003eDesigned for RB26, RB25, and RB20 motors found in the Nissan Skyline R32, R33, and R34 models, this dowel kit ensures precise camshaft positioning and prevents the frustrating issue of misplaced dowels.\u003c\/p\u003e\n\u003cp\u003eTerra Firma is proud to offer this valuable dowel kit at a great value, allowing you to properly secure and align your camshafts. Don't let these \"loose\" items hinder your engine's performance any longer.\u003c\/p\u003e\n\u003cp\u003ePlease note that this dowel kit is not suitable for single cam motors. It is specifically designed for RB26, RB25, and RB20 engines.\u003c\/p\u003e\n\u003cp\u003eWhen it comes to maintaining the integrity of your Nissan Skyline, trust only genuine Nissan parts. Terra Firma is your reliable source for authentic Nissan components, including the New Genuine Nissan Skyline Camshaft Dowel Kit.\u003c\/p\u003e\n\u003cp\u003eSay goodbye to the inconvenience of missing or misplaced camshaft dowels. Get the New Genuine Nissan Skyline Camshaft Dowel Kit from Terra Firma today and ensure the proper functioning and longevity of your RB26, RB25, or RB20 engine.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356683800638,"sku":"TFA-110082KT","price":5.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110082KT-A3.jpg?v=1548652320"},{"product_id":"nissan-skyline-r32-r33-r34-gtr-intake-valve-stem-seals-tfa-110072kt","title":"Nissan Skyline R32 R33 R34 GTR Intake Valve Stem Seals RB26DETT","description":"\u003cp\u003eIntroducing the New Genuine Nissan Skyline R32, R33, and R34 GTR Intake Valve Stem Oil Seal, available exclusively at Terra Firma. These valve stem seals are designed to provide a reliable seal for the intake valves in your RB26DETT engine.\u003c\/p\u003e\n\u003cp\u003eAt Terra Firma, we understand the importance of maintaining the integrity of your engine's valve system. That's why we offer these high-quality intake valve stem seals that meet the manufacturer's specifications. Our seals are designed to prevent oil from leaking into the combustion chamber and ensure optimal engine performance.\u003c\/p\u003e\n\u003cp\u003eWhether you're performing maintenance on your Skyline GTR or undergoing an engine rebuild, these valve stem seals are essential components to replace. Over time, the original seals may wear out or become brittle, compromising the performance of your engine. By installing the New Genuine Nissan Skyline GTR Intake Valve Stem Oil Seals, you can restore the proper sealing and enhance the longevity of your engine.\u003c\/p\u003e\n\u003cp\u003eDon't settle for inferior quality seals that may lead to oil leaks and decreased performance. Trust in the genuine Nissan parts provided by Terra Firma to deliver exceptional quality and performance. Upgrade your Skyline GTR with the reliability and peace of mind that comes with using New Genuine Nissan Intake Valve Stem Oil Seals.\u003c\/p\u003e\n\u003cp\u003eChoose Terra Firma as your trusted supplier for Nissan performance parts. Experience the difference in quality and performance that our genuine Nissan parts offer. Upgrade your Skyline GTR with the New Genuine Nissan Skyline GTR Intake Valve Stem Oil Seals from Terra Firma.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356683833406,"sku":"TFA-110072KT","price":109.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110072KT.jpg?v=1620480218"},{"product_id":"nissan-skyline-r32-33-34-gtr-r32-gtst-gts4-camshaft-oil-seal","title":"Nissan Skyline R32 R33 R34 Camshaft Oil Seal RB26\/25\/20","description":"\u003cp\u003e\u003cspan\u003eDiscover the perfect Camshaft Oil Seal for your Nissan Skyline R32, R33, or R34 with Terra Firma Automotive! Our new genuine Nissan Skyline RB26\/25\/20 Camshaft Oil Seal is expertly designed with a specific lip molding tailored to the RB motor, ensuring a precise fit and optimal performance. With 2 seals required per car, you can rest assured knowing your engine is protected from oil leaks. For RB20E Single Cam Engines, 1 seal is required. Don't compromise on quality and reliability; choose Terra Firma Automotive for genuine Nissan parts that will keep your Skyline running smoothly for years to come. Upgrade your camshaft oil seals today!\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 Required per RB26\/25\/20\u003c\/li\u003e\n\u003cli\u003e1 required on RB20E Single Cam Engines.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356683964478,"sku":"13042-16V0A","price":15.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/13042-16V0A.jpg?v=1548652318"},{"product_id":"nissan-skyline-r32-r33-r34-gtr-valve-stem-oil-seal-tfa-110070kt","title":"Nissan Skyline R32 R33 R34 GTR Exhaust Valve Stem Seals RB26DETT","description":"\u003cp\u003eDiscover the Nissan Skyline R32, R33, and R34 GTR Exhaust Valve Stem Seals, exclusively available at Terra Firma. These genuine Nissan valve stem oil seals are designed specifically for the RB26DETT engine.\u003c\/p\u003e\n\u003cp\u003eOur Exhaust Valve Stem Seals are essential components that help maintain proper oil control and prevent oil leakage in your GTR's exhaust valves. With these high-quality seals, you can ensure optimal performance and protection for your engine.\u003c\/p\u003e\n\u003cp\u003eReplace worn-out or damaged valve stem seals with the genuine Nissan Skyline R32, R33, and R34 GTR Exhaust Valve Stem Seals from Terra Firma. Trust in our expertise and commitment to providing top-quality parts for your RB26DETT engine.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356684062782,"sku":"TFA-110070KT","price":84.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110070KT.jpg?v=1620480225"},{"product_id":"nissan-skyline-r32-r33-34-gtr-cylinder-head-rb26dett-bare-11040-05u00","title":"Nissan Skyline R32 R33 R34 GTR Valve Spring Retainer Kit RB26","description":"\u003cp\u003eIntroducing the Nissan Skyline R32 R33 R34 GTR Valve Spring Retainer Kit for RB26, exclusively available at Terra Firma. Our kit features genuine Nissan components and is designed to meet the specific needs of your RB26 motor.\u003c\/p\u003e\n\u003cp\u003eThe kit contains 24 valve spring retainers, ensuring you have all the necessary components to maintain optimal performance and reliability. Valve spring retainers play a crucial role in securing the valve springs, preventing them from dislodging during high RPMs and ensuring proper valve operation.\u003c\/p\u003e\n\u003cp\u003eBy choosing our genuine Nissan Skyline R32 R33 R34 GTR Valve Spring Retainer Kit, you can trust that you are getting the highest quality retainers that are specifically engineered for your RB26 motor. Don't compromise on performance or reliability - choose a kit that meets the stringent standards set by Nissan.\u003c\/p\u003e\n\u003cp\u003eUpgrade your RB26 motor with confidence. Get the Nissan Skyline R32 R33 R34 GTR Valve Spring Retainer Kit from Terra Firma and experience the difference in performance and peace of mind.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356684128318,"sku":"TFA-110024KT","price":138.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110024KT.jpg?v=1548652313"},{"product_id":"nissan-skyline-r32-33-34-gtr-r32-gtst-gts4-camshaft-lock-kit-tfa-110040kt","title":"Nissan Skyline R32 R33 R34 Camshaft Lock Kit RB26\/25\/20","description":"\u003cp\u003eUpgrade your Nissan Skyline R32 R33 R34 with the Camshaft Lock Kit from Terra Firma. Our genuine Nissan Skyline Camshaft Lock Kit is designed to ensure precise camshaft positioning during engine maintenance or repairs.\u003c\/p\u003e\n\u003cp\u003eWith this kit, you can easily lock the camshafts in place, allowing for accurate adjustments and maintenance procedures. Each camshaft requires one kit, making it a must-have for RB26, RB25, and RB20 engines (except RB20E).\u003c\/p\u003e\n\u003cp\u003ePlease note that two kits are required for all RB engines except RB25 NEO, which requires only one kit. This kit is not compatible with single cam RB20E engines.\u003c\/p\u003e\n\u003cp\u003eTrust Terra Firma for your Nissan Skyline needs and experience the difference of using genuine, high-quality parts. Ensure proper camshaft positioning with confidence using the Nissan Skyline Camshaft Lock Kit from Terra Firma.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Required Per Cam\u003c\/li\u003e\n\u003cli\u003e2 Required for all RB Engines Except RB25 NEO\u003c\/li\u003e\n\u003cli\u003e1 Required For RB25 NEO\u003c\/li\u003e\n\u003cli\u003eNot for single cam RB20E\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eContains Obsolete Items!\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Terra Firma Automotive","offers":[{"title":"Default Title","offer_id":18356684193854,"sku":"TFA-110040KT","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110040KT.jpg?v=1548652311"},{"product_id":"nissan-skyline-r32-r33-gtr-r32-gtst-valve-cover-washer-set-tfa-110030kt","title":"Nissan Skyline R32 R33 R34 Original Valve Cover Washer Set (Except NEO) RB26\/25\/20","description":"\u003cp\u003eNew Genuine Skyline RB26\/25\/20 Valve Cover Grommet Set. Correct 20 Piece set used to properly seal your valve cover. Correct molded durometer rubber with Gold Can insert. We also carry as cost saving reproduction kit, see P\/N JRE-110031.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot For RB25 NEO\u003c\/li\u003e\n\u003cli\u003eNot For RB20E Single Cam Motors\u003c\/li\u003e\n\u003cli\u003eFor Reproduction Set, \u003ca href=\"https:\/\/tfaspeed.com\/products\/jre-valve-cover-washer-set-for-nissan-skyline-r32-r33-r34-rb26-25-20-except-neo\" title=\"JRE VALVE COVER WASHER SET FOR NISSAN SKYLINE R32 R33 R34 RB26\/25\/20 (EXCEPT NEO)\"\u003eClick Here\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356724170814,"sku":"TFA-110030","price":277.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TFA-110030KT.jpg?v=1548652082"},{"product_id":"nissan-skyline-r32-r33-gtr-cylinder-head-rocker-cover-caution-label-14077-05u00","title":"Nissan Skyline R32 R33 R34 GTR Cylinder Head, Rocker Cover Caution Label","description":"\u003cp\u003eEnhance the authenticity of your Nissan Skyline R32, R33, or R34 GTR restoration with the Genuine Cylinder Head and Rocker Cover Caution Label from Terra Firma Automotive. This OEM decal is a vital component for maintaining the original look and safety features of these iconic vehicles.\u003c\/p\u003e\n\u003cp\u003eOver time, the cylinder head and rocker cover caution labels can fade, peel, or become damaged, detracting from the overall appearance and historical accuracy of your GTR. Our replacement decals are meticulously crafted to match the exact specifications and Japanese script of the originals, ensuring a seamless fit and factory-like finish.\u003c\/p\u003e\n\u003cp\u003eAt Terra Firma Automotive, we specialize in providing enthusiasts with top-quality, genuine Nissan parts that meet stringent standards for authenticity and durability. Whether you're restoring a classic Skyline R32, R33, or R34 GTR or performing routine maintenance, trust Terra Firma Automotive to deliver the parts you need to preserve the integrity and value of your cherished vehicle.\u003c\/p\u003e","brand":"Nissan","offers":[{"title":"Default Title","offer_id":18356727021630,"sku":"14077-05U00","price":6.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/14077-05U00.jpg?v=1548652051"},{"product_id":"hks-valve-spring-upgrade-set-step-2-for-nissan-rb26dett-22001-an001","title":"HKS Valve Spring Upgrade Set STEP 2 For NISSAN RB26DETT 22001-AN001","description":"\u003cp\u003eEnhance the performance of your NISSAN RB26DETT engine with the HKS Valve Spring Upgrade Set STEP 2, available at Terra Firma Automotive. When upgrading to high lift cams, maintaining proper contact between the valves and cams is crucial to prevent valve float.\u003c\/p\u003e\n\u003cp\u003eThe HKS Valve Spring Upgrade Set STEP 2 is designed to provide optimal valve control and prevent any loss of contact between the valves and cams, ensuring smooth engine operation even at high RPMs. This upgrade set utilizes the highest quality materials and undergoes advanced heat treatment and shot-peening processes, resulting in a durable and low-inertia spring that can withstand the demands of high-performance driving.\u003c\/p\u003e\n\u003cp\u003eBy installing the HKS Valve Spring Upgrade Set STEP 2, you can unleash the full potential of your RB26DETT engine and enjoy improved power delivery, increased engine response, and enhanced reliability. Whether you're on the track or the street, this valve spring upgrade ensures that your engine operates at its best.\u003c\/p\u003e\n\u003cp\u003eUpgrade your RB26DETT engine with the HKS Valve Spring Upgrade Set STEP 2 from Terra Firma Automotive and experience the difference in performance and durability. Trust in HKS's reputation for top-notch performance products and elevate your driving experience to new heights.\u003c\/p\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":18449550409790,"sku":"hks22001-AN001","price":397.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/22001-AN001.jpg?v=1630297781"},{"product_id":"hks-valve-stem-seal-kit-for-nissan-rb26dett-22999-an004","title":"HKS Valve Stem Seal Kit For NISSAN RB26DETT 22999-AN004","description":"\u003cp\u003eUpgrade your Nissan RB26DETT engine with the high-performance HKS Valve Stem Seal Kit from Terra Firma Automotive. With the stock valve stem seal, oil can fall when continuously revving to 9,000 RPM or higher, impacting engine performance. However, the HKS valve stem seal is designed to prevent oil from falling even at 10,000 RPM, as proven in testing with the HKS Drag GT-R.\u003c\/p\u003e\n\u003cp\u003eThe HKS Valve Stem Seal Kit is an essential component of the HKS Head System Step Pro, but it can also be used effectively with the stock cylinder head alone. By using this kit, you can ensure better oil control and maintain consistent engine performance at high RPMs.\u003c\/p\u003e\n\u003cp\u003eExperience the quality and reliability of HKS products, known for their exceptional engineering and performance enhancements. Trust Terra Firma Automotive to provide you with top-notch products that elevate your vehicle's capabilities and deliver outstanding results.\u003c\/p\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":18455207968830,"sku":"hks22999-AN004","price":142.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/22999-AN004.jpg?v=1620480594"},{"product_id":"tomei-camshaft-set-poncam-rb25-256-8-50-for-nissan-skyline-r32-gts25-ta301b-ns06a","title":"Tomei Camshaft Set, Poncam RB25DE(T) NVCS 256-8.50 R33 (Early) TA301B-NS06A","description":"\u003cp dir=\"auto\"\u003eCamshaft profile has a direct effect on mid-range response and overall drivability of the RB25DE(T). The Tomei Poncam Camshaft Set (part number TA301B-NS06A) is a matched intake and exhaust pair designed specifically for early-production R33 RB25DE(T) engines equipped with NVCS, covering vehicles manufactured from approximately October 1996 to September 1997.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis Poncam specification uses a 256° duration and 8.50 mm lift on both the intake and exhaust sides. Positioned as a milder performance option within Tomei’s range, these shafts aim to improve airflow and throttle response while remaining well suited to street-driven and lightly modified engines. The profile is intended to work with the NVCS system on early R33 RB25 engines and provides a practical improvement over stock cams without the more aggressive characteristics of higher-lift Procam designs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese 256-8.50 Poncam shafts are a sensible upgrade for early R33 GTS25T or similar RB25DE(T) builds looking for better response and usable power gains. Correct installation and professional tuning are recommended to extract the benefits while maintaining reliability. At Terra Firma Automotive, we supply this genuine Tomei Poncam Camshaft Set as a capable option for early R33 RB25 owners. Choose Terra Firma Automotive for authentic Japanese camshafts that support responsive, well-balanced RB25DE(T) engines.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Poncam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301B-NS06A\u003c\/li\u003e\n\u003cli\u003eApplication: Early R33 RB25DE(T) with NVCS\u003c\/li\u003e\n\u003cli\u003eProduction range: approximately 10.1996 – 09.1997\u003c\/li\u003e\n\u003cli\u003eIntake duration: 256°\u003c\/li\u003e\n\u003cli\u003eExhaust duration: 256°\u003c\/li\u003e\n\u003cli\u003eIntake lift: 8.50 mm\u003c\/li\u003e\n\u003cli\u003eExhaust lift: 8.50 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eMilder Poncam profile for street and mild performance use\u003c\/li\u003e\n\u003cli\u003eCompatible with early R33 NVCS system\u003c\/li\u003e\n\u003cli\u003eImproves mid-range response and airflow potential\u003c\/li\u003e\n\u003cli\u003ePractical upgrade over stock camshafts\u003c\/li\u003e\n\u003cli\u003eRequires proper installation and tuning\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507224776766,"sku":"TA301B-NS06A","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_d2667f13-165d-4634-9eb5-48a572f26e77.jpg?v=1549233188"},{"product_id":"tomei-camshaft-set-poncam-rb25det-nvcs-late-256-8-50-for-nissan-skyline-r33-gts25-ta301b-ns06b","title":"Tomei Camshaft Set, Poncam RB25DE(T) NVCS 256-8.50 R33 (Late) TA301B-NS06B","description":"\u003cp dir=\"auto\"\u003eCamshaft selection plays a key role in how an RB25DE(T) delivers mid-range response and overall drivability. The Tomei Poncam Camshaft Set (part number TA301B-NS06B) is a matched intake and exhaust pair designed specifically for late-production R33 RB25DE(T) engines equipped with NVCS, covering vehicles manufactured from approximately September 1997 to September 1998.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis Poncam specification features a 256° duration and 8.50 mm lift on both intake and exhaust sides. As part of Tomei’s milder Poncam range, these shafts are intended to improve airflow and throttle response while remaining suitable for street-driven and mildly modified engines. The profile works with the NVCS system on late R33 RB25 engines and provides a practical step up from stock cams without the more aggressive characteristics of higher-lift Procam options.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese 256-8.50 Poncam shafts are a well-matched upgrade for late R33 GTS25T or similar RB25DE(T) builds seeking better response and usable power gains. Proper installation and professional tuning are recommended to realize the benefits and maintain reliability. At Terra Firma Automotive, we supply this genuine Tomei Poncam Camshaft Set as a capable performance option for late R33 RB25 owners. Choose Terra Firma Automotive for authentic Japanese camshafts that support responsive, well-rounded RB25DE(T) engines.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Poncam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301B-NS06B\u003c\/li\u003e\n\u003cli\u003eApplication: Late R33 RB25DE(T) with NVCS\u003c\/li\u003e\n\u003cli\u003eProduction range: approximately 09.1997 – 09.1998\u003c\/li\u003e\n\u003cli\u003eIntake duration: 256°\u003c\/li\u003e\n\u003cli\u003eExhaust duration: 256°\u003c\/li\u003e\n\u003cli\u003eIntake lift: 8.50 mm\u003c\/li\u003e\n\u003cli\u003eExhaust lift: 8.50 mm\u003c\/li\u003e\n\u003cli\u003eMatched intake and exhaust set\u003c\/li\u003e\n\u003cli\u003eMilder Poncam profile for street and mild performance use\u003c\/li\u003e\n\u003cli\u003eCompatible with late R33 NVCS system\u003c\/li\u003e\n\u003cli\u003eImproves mid-range response and airflow potential\u003c\/li\u003e\n\u003cli\u003ePractical upgrade over stock camshafts\u003c\/li\u003e\n\u003cli\u003eRequires proper installation and tuning\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507245158462,"sku":"TA301B-NS06B","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_8805d366-0799-4c48-a847-78a6203a23c7.jpg?v=1549233732"},{"product_id":"tomei-camshaft-set-poncam-rb25det-neo6-type-b-for-nissan-skyline-ta301a-ns06d","title":"Tomei Camshaft Set, Poncam RB25DET NEO 262-9.15 TA301A-NS06D","description":"\u003cp dir=\"auto\"\u003eCamshaft selection has a strong influence on how an RB25DET NEO delivers response and mid-range torque. The Tomei Poncam Camshaft Set (part number TA301A-NS06D) is a matched intake and exhaust pair developed specifically for the RB25DET NEO engine, commonly found in later R34 Skylines and related models.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis Poncam specification is designated 262-9.15 and is engineered as a drop-in style upgrade intended to work with the stock valvetrain and ECU. Tomei optimized the profile with attention to stable idle and stronger low- to mid-RPM torque, making it particularly well suited to engines running a stock turbo or N1-spec turbine. The set is designed exclusively for RB25DET NEO applications and does not fit non-NEO RB25DE or RB25DET engines.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese Poncam shafts provide a practical performance step for NEO-powered cars seeking improved response and usable power without moving to more aggressive, higher-maintenance cam profiles. Professional installation and tuning are recommended to extract the full benefit while maintaining reliability. At Terra Firma Automotive, we supply this genuine Tomei Poncam Camshaft Set as a capable option for RB25DET NEO owners. Choose Terra Firma Automotive for authentic Japanese camshafts that support responsive, well-balanced NEO builds.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Poncam Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS06D\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB25DET NEO only\u003c\/li\u003e\n\u003cli\u003eDesignation: 262-9.15\u003c\/li\u003e\n\u003cli\u003eDoes not fit non-NEO RB25DE or RB25DET\u003c\/li\u003e\n\u003cli\u003eOptimized for stable idle and low- to mid-RPM torque\u003c\/li\u003e\n\u003cli\u003eBest suited to stock or N1 turbine setups\u003c\/li\u003e\n\u003cli\u003eDrop-in style performance upgrade\u003c\/li\u003e\n\u003cli\u003eDesigned to work with stock valvetrain\u003c\/li\u003e\n\u003cli\u003eImproves response and usable power delivery\u003c\/li\u003e\n\u003cli\u003ePractical alternative to more aggressive cam profiles\u003c\/li\u003e\n\u003cli\u003eSuitable for street and mild performance builds\u003c\/li\u003e\n\u003cli\u003eRequires proper installation and tuning\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese camshaft engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507252236350,"sku":"TA301A-NS06D","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_6341391c-713a-434a-b402-08059dbc89c5.jpg?v=1549233880"},{"product_id":"tomei-camshaft-set-poncam-rb25det-neo6-252-9-15-type-a-for-nissan-skyline-143046","title":"Tomei Camshaft Set, Poncam RB25DET NEO 254-9.15 Type A TA301A-NS06C","description":"\u003cp dir=\"auto\"\u003eThe Tomei PONCAM Camshaft Set (part number TA301A-NS06C) is a purpose-built upgrade for the Nissan RB25DET NEO engine, offering a balanced combination of increased duration and lift while remaining compatible with the stock valvetrain. Specced at 254° duration and 9.15 mm lift on both intake and exhaust, this Type A set is designed to improve mid-range response and top-end power without requiring extensive supporting modifications. It is intended for RB25DET NEO applications found in the R34 Skyline GT-T and later Stagea models, and does not fit the non-turbo RB25DE.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTomei’s PONCAM philosophy focuses on delivering measurable performance gains through carefully optimized profiles that can be installed as a relatively straightforward upgrade. The cams are engineered to work with factory valve springs and retainers in many street and mild performance setups, making them a popular choice for enthusiasts seeking better throttle response and higher output while preserving daily drivability. The solid design and precise lobe profiles help maintain stable valve control across the RPM range, supporting both stock turbo and moderately upgraded configurations.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt Terra Firma Automotive, we supply this genuine Tomei PONCAM set as a proven performance solution for RB25DET NEO owners. Whether you are refreshing a high-mileage engine or building toward higher power levels, these camshafts provide a reliable path to improved airflow and engine character. Professional installation and proper valve clearance adjustment are recommended to ensure optimal results. Choose Terra Firma Automotive for authentic Tomei camshafts trusted by Skyline and Stagea enthusiasts worldwide.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei PONCAM Camshaft Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA301A-NS06C\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB25DET NEO (excludes RB25DE)\u003c\/li\u003e\n\u003cli\u003eDuration: 254° (intake and exhaust)\u003c\/li\u003e\n\u003cli\u003eLift: 9.15 mm (intake and exhaust)\u003c\/li\u003e\n\u003cli\u003eType: Solid (HI)\u003c\/li\u003e\n\u003cli\u003eDesigned for R34 Skyline GT-T and compatible Stagea models\u003c\/li\u003e\n\u003cli\u003eDrop-in style upgrade for many stock valvetrain setups\u003c\/li\u003e\n\u003cli\u003eImproves mid-range response and upper RPM power\u003c\/li\u003e\n\u003cli\u003eSuitable for street and mild performance builds\u003c\/li\u003e\n\u003cli\u003eWorks with factory or mildly upgraded turbo configurations\u003c\/li\u003e\n\u003cli\u003ePrecision-ground profiles for stable valve control\u003c\/li\u003e\n\u003cli\u003ePart of Tomei’s proven PONCAM performance range\u003c\/li\u003e\n\u003cli\u003eRequires proper installation and clearance adjustment\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507255087166,"sku":"TA301A-NS06C","price":684.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA301A-NS05C-W_34a41865-1b4b-4067-8e4a-1c802e1710c6.jpg?v=1549234105"},{"product_id":"tomei-valve-springs-lifter-test-shim-set-2-3mm-rb20-25-for-nissan-skyline-gtst-gts25-163012","title":"Tomei Valve Springs Lifter Test Shim Set 2.3mm RB20\/25\/CA18 TA307C-NS230","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eTo be used with RB20\/RB25\/CA18 \u003c\/span\u003e\u003cspan\u003eTOMEI Solid Valve Lifters\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLifter shim sold separately\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e12 Piece Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507283595326,"sku":"TA307C-NS230","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/files\/TA307C-NS230.jpg?v=1728496630"},{"product_id":"tomei-valve-lifter-set-rb20-25-for-nissan-skyline-r32-r33-gtst-gts4-gts25-ta307a-ns06a","title":"Tomei Valve Lifter Set RB20\/25 Solid Type (Non NEO) TA307A-NS06A","description":"\u003cp dir=\"auto\"\u003eHydraulic lifters limit high-RPM stability and prevent the use of higher-lift camshafts on Non-NEO RB20 and RB25 engines. The Tomei Solid Valve Lifter Set (part number TA307A-NS06A) converts these engines to a shim-adjustable solid valvetrain, unlocking greater performance potential while reducing reciprocating mass.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese lifters are a direct replacement for the stock hydraulic units and are adjusted by shims. They require solid-type camshafts and feature a base that is 1 mm taller, designed specifically for φ29 base-circle camshafts. The set is particularly suited for Tomei camshafts with 10.25 mm lift. Manufactured from high-strength chrome-moly steel using a cold-forging process, each lifter weighs approximately 35 grams compared with the stock 57.5 grams, helping the valvetrain remain stable at elevated engine speeds. Note that RB25DET applications require Tomei Valve Springs TA304A-NS06B, and the lifters are not compatible with NEO 6 engines. They are intended for use with Tomei adjustment shims.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt Terra Firma Automotive, we supply this genuine Tomei Solid Valve Lifter Set for builders converting RB20 and Non-NEO RB25 engines to a solid valvetrain. It is a critical supporting component when running higher-lift camshafts and seeking reliable high-RPM control. Choose Terra Firma Automotive for authentic Tomei components engineered for serious RB-series performance builds.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eRB25DET SET Requires \u003c\/span\u003eTomei Valve Springs \u003ca href=\"https:\/\/tfaspeed.com\/products\/tomei-racing-valve-springs-b-type-with-retainers-rb25det-r33-gts25t-ta304a-ns06b\" title=\"Tomei Racing Valve Springs, Type-B RB25DET R33 GTS25T TA304A-NS06B\"\u003e\u003cspan\u003eTA304A-NS06B\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNOT compatible with NEO 6\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eGenuine Tomei Solid Valve Lifter Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA307A-NS06A\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB20DE(T) \/ RB25DE(T) Non-NEO\u003c\/li\u003e\n\u003cli\u003eDirect replacement for stock hydraulic lifters\u003c\/li\u003e\n\u003cli\u003eAdjusted by shims\u003c\/li\u003e\n\u003cli\u003eRequires solid-type camshafts\u003c\/li\u003e\n\u003cli\u003eBase height is 1 mm extra (for Φ29 base circle camshafts)\u003c\/li\u003e\n\u003cli\u003eSuited for Tomei camshafts with 10.25 mm lift\u003c\/li\u003e\n\u003cli\u003eCold-forged high-strength construction\u003c\/li\u003e\n\u003cli\u003eLightweight design: approximately 35 g each (stock is 57.5 g)\u003c\/li\u003e\n\u003cli\u003eRB25DET set requires Tomei Valve Springs TA304A-NS06B\u003c\/li\u003e\n\u003cli\u003eNot compatible with NEO 6 engines\u003c\/li\u003e\n\u003cli\u003eFor use with Tomei shims\u003c\/li\u003e\n\u003cli\u003eReduces valvetrain mass for improved high-RPM stability\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507406377022,"sku":"TA307A-NS06A","price":324.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA307A-NS06A.jpg?v=1618973718"},{"product_id":"tomei-valve-springs-seat-set-0-3mm-rb20-25-163012-ta305a-ns05b","title":"Tomei Valve Springs Seat Set 0.3mm RB26\/25\/20 TA305A-NS05B","description":"\u003cp dir=\"auto\"\u003eMaintaining correct valve spring installed height and load is important for reliable valvetrain operation, especially after cylinder head work. The Tomei Valve Spring Seat Set (part number TA305A-NS05B) provides 0.3 mm seats designed for Nissan RB26, RB25, and RB20 engines, offering a simple way to restore or fine-tune spring preload when the installed height has changed.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eMachining operations such as a multi-angle valve job can reduce the distance between the spring seat and retainer, lowering installed spring load below the intended specification. These 0.3 mm seats help bring the spring load back toward the proper range, supporting more consistent valvetrain control and reducing the risk of spring surge or related issues at higher RPM. The set includes eight seats, making it suitable for a complete bank or as needed during head assembly.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis is a practical supporting component for performance or refreshed cylinder heads on RB-series engines where spring height and load need correction. At Terra Firma Automotive, we supply this genuine Tomei Valve Spring Seat Set as a useful adjustment tool for RB26, RB25, and RB20 builds. Whether you are assembling a modified head or correcting load after machining, these seats provide a straightforward solution from Tomei. Choose Terra Firma Automotive for authentic Japanese valvetrain components that support proper spring setup.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Valve Spring Seat Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA305A-NS05B\u003c\/li\u003e\n\u003cli\u003eThickness: 0.3 mm\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26, RB25, and RB20\u003c\/li\u003e\n\u003cli\u003e8-piece set\u003c\/li\u003e\n\u003cli\u003eHelps restore or adjust installed spring height\u003c\/li\u003e\n\u003cli\u003eUseful after valve jobs that reduce spring load\u003c\/li\u003e\n\u003cli\u003eSupports correct spring preload\u003c\/li\u003e\n\u003cli\u003eHelps reduce risk of spring surge at higher RPM\u003c\/li\u003e\n\u003cli\u003ePractical during performance or refreshed head assembly\u003c\/li\u003e\n\u003cli\u003eSimple and effective valvetrain adjustment component\u003c\/li\u003e\n\u003cli\u003eCompatible with common RB-series spring setups\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese valvetrain engineering\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507781668926,"sku":"TA305A-NS05B","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA305A-NS05B.jpg?v=1618973720"},{"product_id":"tomei-valve-springs-seat-set-0-2mm-rb26-25-20-ta305a-ns05a","title":"Tomei Valve Springs Seat Set 0.2mm RB26\/25\/20 TA305A-NS05A","description":"\u003cp dir=\"auto\"\u003ePrecise valve spring load is essential for stable high-RPM operation on the Nissan RB-series engines. The Tomei Valve Spring Seat Set (part number TA305A-NS05A) provides a 0.2 mm thickness option in a set of eight seats, allowing engine builders to fine-tune installed spring height and restore proper load after cylinder head work.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWhen a valve job is performed or aftermarket valve springs are installed, the effective spring height can change, reducing seat pressure below the intended specification. These precision seats are used to compensate for that variation, bringing spring load back into the correct range and helping prevent valve float, spring surge, or inconsistent valve control at elevated engine speeds. The 0.2 mm thickness offers a fine adjustment step for accurate setup on RB26, RB25, and RB20 cylinder heads.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt Terra Firma Automotive, we supply this genuine Tomei 0.2 mm Valve Spring Seat Set for builders working on Skyline and other RB-powered engines. Whether you are assembling a performance head with upgraded springs or restoring correct geometry after machining, these seats provide a simple and cost-effective way to achieve uniform spring loads. Choose Terra Firma Automotive for authentic Tomei components that support precise cylinder head assembly.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Valve Spring Seat Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA305A-NS05A\u003c\/li\u003e\n\u003cli\u003eThickness: 0.2 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 8 pieces\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26 \/ RB25 \/ RB20 series\u003c\/li\u003e\n\u003cli\u003eUsed to adjust valve spring installed height\u003c\/li\u003e\n\u003cli\u003eHelps restore correct spring load after machining\u003c\/li\u003e\n\u003cli\u003eSupports consistent valve control at high RPM\u003c\/li\u003e\n\u003cli\u003eIdeal for use with aftermarket valve springs\u003c\/li\u003e\n\u003cli\u003eFine adjustment option for precision head work\u003c\/li\u003e\n\u003cli\u003ePrevents reduced seat pressure from valve jobs\u003c\/li\u003e\n\u003cli\u003eSimple and effective cylinder head setup tool\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese performance component\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507806638142,"sku":"TA305A-NS05A","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA305A-NS05B_87cd4cdf-ba93-465b-8830-872a59d178da.jpg?v=1618973720"},{"product_id":"tomei-valve-springs-seat-set-0-5mm-rb26-25-20-ta305a-ns05c","title":"Tomei Valve Springs Seat Set 0.5mm RB26\/25\/20 TA305A-NS05C","description":"\u003cp dir=\"auto\"\u003eAccurate valve spring load is critical for stable high-RPM operation on Nissan RB-series engines. The Tomei Valve Spring Seat Set (part number TA305A-NS05C) provides a 0.5 mm thickness option in a set of eight seats, giving builders a more substantial adjustment step when setting installed spring height and restoring correct seat pressure.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAfter a valve job or when installing aftermarket valve springs, the effective spring height can change enough to drop seat load below the intended specification. These 0.5 mm precision seats allow a larger correction than the thinner options, helping bring spring pressure back into the proper range and supporting consistent valve control. The set is designed for use on RB26, RB25, and RB20 cylinder heads where uniform spring loads are required for reliable high-RPM performance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt Terra Firma Automotive, we supply this genuine Tomei 0.5 mm Valve Spring Seat Set for engine builders working on Skyline and other RB-powered platforms. Whether you are assembling a performance cylinder head or compensating for machining changes, these seats offer a straightforward and effective method for achieving the correct spring geometry. Choose Terra Firma Automotive for authentic Tomei components that support precise head assembly work.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tomei Valve Spring Seat Set\u003c\/li\u003e\n\u003cli\u003ePart Number: TA305A-NS05C\u003c\/li\u003e\n\u003cli\u003eThickness: 0.5 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 8 pieces\u003c\/li\u003e\n\u003cli\u003eApplication: Nissan RB26 \/ RB25 \/ RB20 series\u003c\/li\u003e\n\u003cli\u003eUsed to adjust valve spring installed height\u003c\/li\u003e\n\u003cli\u003eProvides a larger correction step than thinner seats\u003c\/li\u003e\n\u003cli\u003eHelps restore correct spring load after machining\u003c\/li\u003e\n\u003cli\u003eSupports consistent valve control at high RPM\u003c\/li\u003e\n\u003cli\u003eIdeal for use with aftermarket valve springs\u003c\/li\u003e\n\u003cli\u003eUseful for performance cylinder head setups\u003c\/li\u003e\n\u003cli\u003ePrevents reduced seat pressure from valve jobs\u003c\/li\u003e\n\u003cli\u003eSimple and effective adjustment solution\u003c\/li\u003e\n\u003cli\u003eTrusted Japanese performance component\u003c\/li\u003e\n\u003cli\u003eAvailable from Terra Firma Automotive\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":18507809062974,"sku":"TA305A-NS05C","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1992\/7247\/products\/TA305A-NS05B_e80c7dcc-1ef9-4e4e-af41-9b9c96322bca.jpg?v=1618973721"}],"url":"https:\/\/tfaspeed.com\/collections\/test-cylinder-heads-valvetrain.oembed?page=10","provider":"Terra Firma Automotive","version":"1.0","type":"link"}