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Cometic MLS cylinder head gasket for GM LS Gen-3/4 small-block V8 engines with a 4.060-inch bore and 0.027-inch compressed thickness. The gasket stacks embossed stainless steel layers with Viton-coated outer faces to seal high-output engines without sealants. The uncoated center shim supports thickness variation; MLS construction evens load, withstands aluminum-to-aluminum or aluminum-to-iron shearing, reduces clamp load needs and helps limit bore distortion. Viton coating resists temperatures up to 250°C (482°F).
Cometic GM LS1 SB 4.060 inch Bore .027 inch MLS Head Gasket
