The ACL Race Series Main bearing set in STD Size is a high-performance product designed for precision engine building. This half groove set includes an oil feed hole in the upper shells only, making it ideal for high-performance racing applications.

Constructed from ACL Race Series Tri-Metal material, these main bearings are designed to withstand the demands of high-performance engines. They are suitable for positions 1,2,3,4, and 5 with a standard shaft diameter of 1.8892" to 1.8898" (47.985mm/48.000mm). The oil clearance is to be determined, with a maximum wall thickness of 0.0788" (2.001mm). The housing bore size ranges from 2.0480" to 2.0492" (52.020mm/52.050mm) with a maximum length of 0.7830" (19.900mm).

ACL Race Series has been a trusted name in the automotive industry for over 70 years, manufacturing precision engine bearings in Launceston, Tasmania, Australia. With a strong pedigree in motorsport, ACL has a reputation for robust metallurgy, quality, precision, innovation, and performance.

The ACL RACE Series Performance Engine Bearings have been used in various racing disciplines, including Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally. Engine builders worldwide trust ACL Race Series bearings for their reliability and performance.

With over 200 engine applications covered, ACL continues to expand its range of performance engine bearings for Australian, American, Japanese, Korean, and European vehicles. The company has a high degree of vertical integration, ensuring quality control at every stage of production.

Choose ACL Race Series Main bearing set in STD Size for your high-performance engine build and experience the precision and reliability that comes with a trusted brand in the industry.