Main Bearing Set Coated SBC 265/283/302/327

The Main Bearing Set Coated SBC 265/283/302/327 from ACL Bearings is a precision-engineered bearing kit designed for small block Chevrolet engine rebuilds and high-performance applications. This bearing set is engineered for builders and mechanics who demand reliability during engine assembly, whether for street performance, off-road duty, or restoration work. The kit addresses the critical need for properly sized main bearings that maintain strict tolerances and reduce wear during startup and sustained operation.

The 0.001-inch undersize specification ensures precise fit within standard small block Chevy crankshaft saddles, eliminating excessive clearance that leads to bearing spin and catastrophic failure. ACL's proprietary coated surface technology reduces friction and improves load distribution across the bearing shell, protecting the crankshaft during cold starts and sustained high-RPM operation. This coating resists scuffing and extends bearing life in both stock and modified engines, making it the preferred choice for builders who understand that bearing quality directly impacts engine longevity and reliability.

Technicians rebuilding 265, 283, 302, or 327 cubic-inch small block Chevrolet engines will find this bearing set compatible across all three main positions without modification. Installation requires standard engine rebuilding procedures—bearing shells seat firmly in the block and cap when torqued to manufacturer specifications. This kit is ideal for those performing complete gasket-to-gasket rebuilds, performance upgrades, or restoring vintage Chevrolet powerplants to original specifications while upgrading to modern bearing technology.