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ACL Race Series main bearings for Mitsubishi 4G63/4G64 applications fit first-generation 6-bolt DSM engines. These standard-size high-performance main bearings are specified with extra oil clearance to suit rebuilt or upgraded engines where improved lubrication margin is desired. They are offered as a direct replacement option that reflects ACL's race-series intent without broader material or warranty claims beyond the source description.
ACL Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM Standard Size High Performance w Extra Oil Clearance Mai
