The ACL Race Series Main bearing set-performance .025 Oversize (Product Code: 5M1144H-.025) is a high-quality crankshaft bearing set designed for performance engines. Made from Race Series (Tri-Metal) material, these bearings are designed with standard width flanges for all undersizes, 1/2 groove, and 2 holes at 48 degrees.

This set includes bearings for positions 1, 2, 4, and 5, with a standard shaft diameter of 2.2433"/2.2441" (56.980mm/57.000mm), oil clearance to be announced, maximum wall thickness of 0.0783" (1.990mm), housing bore of 2.4016"/2.4024" (61.000mm/61.020mm), and maximum length of 0.9060" (23.000mm). For position 3, the standard shaft diameter, oil clearance, maximum wall thickness, housing bore, and maximum length are the same as positions 1, 2, 4, and 5, with a longer maximum length of 1.1400" (28.950mm) for position 3.

The ACL Race Series has a long history of manufacturing precision engine bearings in Launceston, Tasmania, Australia for over 70 years. As a major OEM supplier to the Australian and international automotive industry, the ACL Race Series is known for its robust metallurgy, quality, precision, innovation, and performance. With a strong pedigree in motorsport, the Race Series Performance Engine Bearings have been used in Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, rally, and more.

ACL's vertical integration includes tooling and product design, bearing strip manufacture, tooling and machine manufacture, and complex manufacturing processes and systems. The company holds ISO9001:2015 Quality Management System, ISO14001:2015 Environmental Management System, and ISO45001:2018 Occupational Health and Safety Management System certification.

For discerning engine builders looking for high-performance engine bearings, the ACL Race Series Main bearing set-performance .025 Oversize is the top choice with its global reputation and extensive aftermarket range.