Unlock the full potential of your Nissan RB25/30 engine with Terra Firma Nissan Parts' ACL Race Series Main Bearing Set, 0.025mm oversized. Our bearings offer the perfect blend of design, metallurgy, and engineering expertise, delivering unparalleled performance for high-performance engines. With our Trimetal engine bearings, drivers can expect enhanced durability, reduced friction, and exceptional reliability. Elevate your driving experience with this extraordinary Main Bearing Set, built to withstand the demands of racing and restoration alike. Terra Firma Nissan Parts is the industry leader for top-notch Nissan performance parts, offering a wide range of products for racing, restoration, or showcasing your vehicle with pride. Experience true performance excellence with our ACL Race Series Main Bearing Set for RB25/30 engines.
- High strength overlay plate with reduced thickness for improved fatigue properties
- Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
- Increased crush for improved bearing retention
- Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
- Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
- 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.
- Tight consistent wall tolerances to help you maintain consistent clearances.
- Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.
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