The ACL Race Series Main Bearing Set in .25 Oversize is a high-performance crankshaft bearing set designed for precision engine builds. With a product code of 5M1237H-.25 and branded as ACL Race Series, this set is perfect for those looking to upgrade their engine bearings for increased durability and performance.

This set features a Race Series (Tri-Metal) construction, ensuring maximum strength and longevity for your engine. The set includes bearings for positions 1, 2, 3, 4, and 5, providing complete coverage for your engine rebuild. The standard shaft diameter is 2.0462"/2.0466" (51.973mm/51.985mm), with a maximum wall thickness of 0.0786" (1.996mm) for optimal support. The housing bore measures 2.2047"/2.2054" (56.000mm/56.018mm), with a maximum length of 0.7090" (18.000mm).

With an extra oil hole for improved lubrication, this bearing set is perfect for high-performance engines that require additional oil flow. The .25mm Oversize design allows for a precise fit, ensuring a tight seal and reducing the risk of premature wear or failure.

The ACL Race Series brand has been a trusted name in precision engine bearings for over 70 years. Manufactured in Launceston, Tasmania, Australia, ACL has a long history of supplying OEM parts to the automotive industry and offering a wide range of aftermarket replacements.

With a strong pedigree in motorsport, ACL has a reputation for quality, precision, and performance. From Formula 1 to drag racing, ACL has been a top choice for engine builders looking for durable and reliable bearings. Their range of RACE Series Performance Engine Bearings covers over 200 engine applications, making it a versatile and sought-after option for builders worldwide.

With ISO9001:2015 Quality Management System certification, ACL ensures that their products meet the highest standards of quality and performance. Upgrade your engine build with the ACL Race Series Main Bearing Set in .25 Oversize and experience the difference that precision-engineered bearings can make.