The ACL Race Series Main bearing set is a top-of-the-line performance upgrade for your crankshaft. With a product code of 4M8263H-STB, this set is designed for all positions and offers a standard shaft diameter of 2.8341"/2.8346" (71.988mm/72.000mm). The tri-metal construction of the Race Series material ensures durability and reliability, while the oil clearance and maximum wall thickness provide optimal performance for your engine.

With a housing bore of 3.0314"/3.0321" (77.000mm/77.016mm) and a maximum length of 0.7480" (19.00mm) to 0.8810" (22.40mm), this Main bearing set is perfect for enhancing the performance of your engine. Whether you're a professional racer or an enthusiast looking to increase horsepower and torque, the ACL Race Series Main bearing set is the perfect choice.

The ACL Race Series brand has a long-standing reputation for producing high-quality engine bearings. With over 70 years of experience in the industry, ACL Race Series has been a major OEM supplier to the Australian and international automotive industry. Their precision engine bearings are renowned for their robust metallurgy, quality, innovation, and performance.

With a strong pedigree in motorsport, the ACL Race Series Performance Engine Bearings have been used in various racing competitions, including Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally. Engine builders worldwide trust ACL Race Series for their superior performance and durability.

The ACL Race Series Main bearing set is part of a wide range of engine bearings that cover over 200 varied engine applications. Whether you drive an Australian, American, Japanese, Korean, or European vehicle, ACL Race Series has the perfect performance engine bearings for your needs. With a commitment to quality and innovation, ACL Race Series continues to expand their product range to cover new engine releases.

With ISO9001:2015 Quality Management System certification, ISO14001:2015 Environmental Management System certification, and ISO451001:2018 Occupational Health & Safety Management System certification, you can trust that ACL Race Series products are manufactured to the highest standards. Upgrade your engine with the ACL Race Series Main bearing set and experience the difference in performance and reliability.