ACL Main Bearings for Mitsubishi 83-92 1997CC G63B/4G63 Standard Size

ACL Main Bearings — Mitsubishi 1983–1992 1997CC G63B / 4G63 (Standard Size) Brand: ACL — precision-engineered main bearings designed for durability and reliable engine performance. This ACL main bearing set fits Mitsubishi 1983–1992 1.997L G63B and 4G63 engines in standard size . Manufactured to OE tolerances, these bearings deliver consistent oil film strength, reduced wear, and improved crankshaft support for restored engine smoothness. Exact fit: Direct replacement for OEM main bearings on G63B / 4G63 1997cc engines. High durability: Multi-layer tri-metal construction resists fatigue and seizure under high loads. Precision tolerances: Maintains correct clearances for optimal oil pressure and long service life. Standard size: For engines requiring no undersize regrind or line-bore correction. Ideal for engine rebuilds, performance restorations, and routine maintenance. Improve crankshaft longevity and maintain factory performance with ACL’s trusted bearing technology. Compatibility: Mitsubishi G63B, 4G63 • 1983–1992 • 1997cc • Standard size main bearing set.