The ACL Race Series Main Bearing Set - Performance .25 Oversize (Product Code: 4M2633H-.25) is a top-of-the-line crankshaft component designed for high-performance engines. Made from Race Series Tri-Metal material, this set is perfect for those seeking maximum durability and performance.

This bearing set is suitable for positions 1, 2, 3, and 4 in your engine, offering a standard shaft diameter of 2.3603"/2.3612" (59.951mm/59.975mm) and a housing bore of 2.5194"/2.5203" (63.993mm/64.017mm). With a maximum wall thickness of 0.0791" (2.009mm) and a maximum length of 0.7920" (20.120mm), this set is designed for precision and reliability.

Featuring a size of 0.25mm oversize, this ACL Race Series Main Bearing Set is ideal for engine builders looking to optimize performance. Known for their robust metallurgy, quality, precision, innovation, and performance, ACL has over 70 years of experience in manufacturing engine bearings.

With a strong motorsport pedigree, the ACL Race Series Performance Engine Bearings have been used in Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally. ACL's range covers over 200 engine applications, offering high-quality bearings for a wide range of performance engines.

With ISO certifications in quality management, environmental management, and occupational health & safety management, ACL ensures that their products meet the highest standards. Trust ACL Race Series Main Bearing Set for superior performance and reliability in your high-performance engine build.