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Cometic MLS head gasket for Chevrolet Gen‑1 Small Block V8 engines (4.165-inch bore) with 18° or 23° heads, round bore, with steam holes and compressed operating thickness of 0.056 in. The MLS assembly features embossed stainless layers with Viton-coated outer faces and an uncoated stainless center shim. No sealants are required; it supports aluminum-to-aluminum or aluminum-to-iron joints, resists corrosion, evens clamp load to limit bore distortion, and AMP embossing plus Viton improve sealing and heat resistance to 250°C (482°F).
Cometic Chevy Small Block 4.165 inch Bore .056 inch MLS-5 Head Gasket (w/All Steam Holes)
