Terra Firma Nissan Parts proudly presents the ACL Race Series Main Bearing Set in standard size, specially crafted for Nissan RB25/30 engines. With a seamless blend of design, metallurgy, and engineering expertise, our Trimetal engine bearings offer an unparalleled performance boost. Expect increased durability, reduced friction, and superior reliability, fulfilling the expectations of drivers seeking high-performance solutions. As the trusted source for top-quality Nissan parts, Terra Firma Nissan Parts caters to racing enthusiasts, restoration projects, and those looking to showcase their vehicles with pride. Elevate your driving experience with the ACL Race Series Main Bearing Set for RB25/30 engines. Trust Terra Firma Nissan Parts to deliver the quality and performance you need for your Nissan vehicle.
- 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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