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The ACL .40mm oversized main bearing set fits Chevrolet big-block V8 engines (396, 402, 427, 454) built between 1965 and 2000 and accommodates crankshafts machined by 0.40mm. These bearings allow correction of larger journal undersizes, restoring correct clearances and bearing support during engine reassembly to maintain dependable crankshaft operation after machining.
ACL 1965-2000 Chevy V8 396/402/427/454 .40mm Oversized Main Bearing Set
