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The ACL main bearing set is a complete crankshaft main bearing kit for Oldsmobile V8 applications spanning 260, 307, 350 and 403 engines (1964–1990). The set includes matched main shells that support the crankshaft and restore correct bearing clearances during assembly, making it appropriate for engine overhauls and routine bottom-end replacements on compatible Olds V8s.
ACL Olds. V8 260-307-350-403 1964-90 Engine Crankshaft Main Bearing Set
