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Cometic's MLS head gasket for Chevrolet Mark-IV Big Block V8s is made for a 4.540-inch bore with a .067-inch compressed thickness. The gasket's multiple embossed stainless steel layers include Viton-coated outer faces and an uncoated shim center layer to manage clamp load and reduce bore distortion. Designed to conform load distribution across the sealing area, it provides a durable sealing solution for compatible large-block Chevy engines.
Cometic Chevy BB 4.540in Bore .067 inch MLS 396/402/427/454 Head Gasket
