The ACL Race Series .25 Oversize Main bearing set is a top-of-the-line performance upgrade for your engine. Designed and manufactured by ACL, a trusted name in engine bearings for over 70 years, this crankshaft bearing set is made from high-quality Race Series (Tri-Metal) material for superior durability and performance.

These main bearings feature standard width flanges for all undersizes, ensuring a perfect fit and maximum support for your crankshaft. With a .25mm oversize, these bearings are perfect for engines that require a little extra clearance for optimal performance.

The set includes bearings for positions 1, 2, 4, and 5 with a standard shaft diameter of 2.2433"/2.2441" (56.980mm/57.000mm) and maximum wall thickness of 0.0783" (1.990mm). The housing bore measures 2.4016"/2.4024" (61.000mm/61.020mm) and the maximum length is 0.9060" (23.000mm) for positions 1, 2, 4, and 5. Position 3 bearings have a maximum length of 1.1400" (28.950mm) for added strength and stability.

ACL's Race Series Performance Engine Bearings are known for their robust metallurgy, precision engineering, and high-performance capabilities. With a strong history in motorsport and a global reputation for quality and innovation, ACL is a trusted choice for engine builders around the world.

Upgrade your engine with the ACL Race Series .25 Oversize Main bearing set and experience the difference in performance and reliability that only ACL can provide. Trust in ACL for all your engine bearing needs and get ready to take your engine to the next level.