ACL Bearings 5M7299H-STD Race Series Main Bearing Set for Chevrolet LS Gen III/IV Engines

ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world, serving as standard components in race engines that have set records and won championships from drift racing to NASCAR, IHRA, and NHRA competitions.

Key Features:

• Multi-layered tri-metal copper alloy construction that blends characteristics to provide high strength and excellent seizure resistance
• Manufactured to exact tolerances ensuring a reliable fit and helping to maintain consistent clearances
• Features a 120-degree groove for improved oil distribution
• Augmented with extended grooves, increased crush, bearing eccentricity, and enlarged I.D. chamfers
• Includes hardened steel backs to improve the support of the bearing lining and assist with bearing retention in the housing
• Standard size bearings designed for precise OE fitment

The unique combination of design, metallurgy, and engineering provides ACL Race Series performance bearings with the endurance and capability to perform where others cannot. These bearings are designed to withstand higher RPM conditions and feature high strength overlay plates with reduced thickness for improved fatigue properties. ACL Bearing Company is an approved supplier of original equipment bearings to all major vehicle manufacturers in Australia, with a range covering all internal combustion engines from small stationary petrol engines to large diesel applications.

Compatible with LS engines including 4.8L (LR4, LY2), 5.3L Gen III, 5.7L (LS1, LS6), 6.0L (LFA, LS2, L76, L98, Vortec), and 6.2L (L99, LS3, Vortec) applications. This main bearing set is ideal for performance rebuilds, racing applications, and high-RPM engine builds requiring superior reliability and precision.