ACL Race Series Main Bearings for Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM Sta...

ACL Race Series Main Bearings for Mitsubishi 4G63 / 4G64 (6-Bolt, 1st Gen DSM) Brand: ACL — engineered for competition and high-performance builds. These Race Series main bearings are precision-manufactured for Mitsubishi 4G63 and 4G64 engines with a 6-bolt, 1st generation DSM main cap configuration. Supplied in standard size with extra oil clearance to support increased crank deflection, high RPMs and aggressive bearing lubrication strategies. High-performance material for enhanced fatigue strength and wear resistance. Extra oil clearance optimized for turbocharged, high-boost and high-speed applications. Standard size for rebuilds where crank journals are within OEM spec. Precision fit for 6-bolt main caps on 1st generation DSM blocks (4G63/4G64). Ideal for race, time-attack, drift and street/strip engines requiring robust lubrication margins. Install with correct torque, clean mating surfaces and proper break-in procedures. For applications with ground or undersized journals, check for compatible ACL sizes and clearances. Upgrade your bottom end with ACL Race Series bearings—built to handle the demands of high-power 4G6x builds while maintaining reliability under extreme conditions.