The ACL main crankshaft bearing set for Chevrolet V8 265–283–302–327 engines covering 1955–1967 is supplied as matched main bearings for rebuilds. Designed to fit the small‑block crank journals cited in the source, the set restores proper oil clearance and crank support so the crankshaft turns smoothly and the engine maintains reliable operation after proper installation.

ACL Chevrolet V8 265-283-302-327 1955-67 Engine Crankshaft Main Bearing Set