ACL Race Series performance motor bearings are recognized as a leading brand in the entire motorsport world. Race Series rods and main bearings are standard components in racing engines that have set records and won championships from Mexico to Bonneville - from sports compact drifting to small-block NASCAR, IHRA, and NHRA competitions. The unique combination of design, metallurgy, and technology gives Race Series performance motor bearings a unique endurance and the ability to perform where other motor bearings cannot. These exceptional bearings are available for a range of American, Asian and European performance engines.