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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 0.066-inch compressed thickness. Multiple embossed stainless steel layers with Viton-coated outer faces provide reliable sealing without sealants. The uncoated center shim permits thickness adjustment; MLS construction distributes load evenly, resists corrosion and shearing at dissimilar-material joints, reduces clamp load requirements and helps minimize bore distortion. Viton coating rated to 250°C (482°F).
Cometic GM LS1 SB 4.060 inch Bore .066 inch MLS-5 Head Gasket
