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Cometic MLS cylinder head gasket for GM LS Gen-3/4 small-block V8, .040in thickness with a 4.030in bore. HP shim technology increases clamp load around the combustion chamber to enhance sealing performance on open-deck blocks. The gasket stacks embossed stainless steel layers with AMP coating and Viton on the outer faces, and an uncoated center shim layer permits different thicknesses while reducing bore distortion.
Cometic GM LS Gen-3/4 Small Block V8 .040in MLS Cylinder Head Gasket - 4.030in Bore
