The ACL Race Series Main Bearing Set in .25 Oversize is a top-of-the-line product designed for performance engines. With a product code of 5M2964H-.25, this crankshaft bearing set is from the renowned ACL Race Series brand, known for its high-quality engine components.

Made from Race Series Tri-Metal material, these bearings are suitable for positions 1 through 5 in the engine. The standard shaft diameter is 2.1636" to 2.1646" (54.956mm to 54.980mm), with a maximum wall thickness of 0.0778" (1.975mm) and a housing bore of 2.3206" to 2.3216" (58.944mm to 58.968mm). The maximum length of the bearings is 0.7520" (19.100mm), providing optimal support and durability.

This Main Bearing Set includes thrust washers (1T2964-STD) and is designed to be .25mm oversize, ensuring a precise fit for your engine. The oil clearance specifications are to be determined based on your engine requirements.

The ACL Race Series brand has a long history of manufacturing precision engine bearings, with over 70 years of experience. Based in Launceston, Tasmania, Australia, ACL has been a major OEM supplier to the automotive industry and offers a wide range of replacement products for the global aftermarket.

Known for their robust metallurgy, quality, precision, innovation, and performance, ACL Race Series bearings have a strong reputation in the motorsport industry. From Formula 1 to Australian Supercars Championship, drag racing, speedway, drifting, and rally, ACL bearings have been the top choice for engine builders worldwide.

With over 200 applications covering Australian, American, Japanese, Korean, and European engines, the ACL Race Series Performance Engine Bearings continue to expand to meet the demands of new engine releases. The company's vertical integration ensures a high level of quality control, with ISO9001:2015, ISO14001:2015, and ISO451001:2018 certifications for their management systems.

In conclusion, the ACL Race Series Main Bearing Set in .25 Oversize is the perfect choice for engine builders seeking top-notch performance, durability, and precision in their crankshaft bearings. Trust ACL's reputation and experience to provide you with the best engine components on the market.