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The ACL Race Series oversized (0.001) main bearing set listed for Chevrolet V8 396/402/427/454 engines is supplied with a 0.080 narrowed specification. These high-performance main bearings accommodate the stated oversized journal and narrowed dimension for engines in that Chevrolet big-block family where those exact bearing dimensions are required for assembly or rebuild.
ACL Chevrolet V8 396/402/427/454 0.001 Oversized High Performance Main Bearing Set (0.080 Narrowed)
