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The ACL main bearing set for Pontiac 151 inline-four (1977–1993) and Chevrolet 153 cu in engines (1962–1970) supplies matched crankshaft bearings needed during engine rebuilds. This crankshaft main bearing kit restores bearing fit and clearances for original rotating assemblies, sold as a complete set to replace worn mains and support reliable reassembly of these early GM four-cylinder engines.
ACL Pont. 4 151 1977-93 Chev 4 153ci 1962-70 Engine Crankshaft Main Bearing Set
