ACL Race Series Main Bearings for Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM EVO...

ACL Race Series Main Bearings — Mitsubishi 4G63 / 4G64 (7-Bolt) 2nd Gen DSM & EVO I–IV ACL Race Series main bearings are engineered for high-performance Mitsubishi 4G63 and 4G64 7-bolt engines used in 2nd generation DSM and EVO I–IV applications. These standard-size bearings deliver proven durability, precise tolerances, and improved oiling to support high rpm and boosted conditions. Key Features Exact Fit: Direct replacement for 7-bolt 4G63/4G64 crankshaft mains in DSM and EVO I–IV engines. Standard Size: Factory-dimensioned for stock and rebuild applications. Race-Grade Materials: High-strength alloy layers for wear resistance and extended life under load. Extra Oil Groove: Improved lubrication for crank journals, reducing friction and heat at high rpm. Performance Reliability: Designed to withstand boost, increased power, and aggressive driving. Benefits Enhanced protection against scoring and seizure during hard driving. Consistent oil film retention for smoother bearing operation and longer engine life. Ideal for street, track, and build projects where reliability under stress matters. Choose ACL Race Series main bearings for a precision OEM fit with race-proven durability — the upgrade your 4G63/4G64 needs for high-performance builds and reliable day-to-day power.