ACL 5M1219H-STD Main Bearing Set for MITSUBISHI 4G63 / 4G63T / 4G64 1997+ ymm_42 Built from high-grade lightweight titanium

Built from high-grade lightweight titanium – with some parts cast in Akrapovič’s own foundry – this system will reduce exhaust system's weight

To ensure that the balancer is locked in position

Far superior to any other main bolts available for use in competition engines

ARP studs and bolts are made from 8740 steel alloy designed for use in aviation and space applications

000˝ Thread Size 3/8-16 washers included

ACL 5M1219H-STD Main Bearing Set for MITSUBISHI 4G63 / 4G63T / 4G64 1997+ ymm_42 Built from high-grade lightweight titaniumDesigned to withstand higher RPM conditions, ACL Race Series Engine Bearings are available for many of the popular 4, 6 & 8 cylinder applications. Main advantages High strength overlay plate with reduced thickness for improved fatigue properties. Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing. Increased crush for improved bearing retention. Elimination of flash