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Cometic MLS head gaskets for GM big block V8s use multiple embossed stainless steel layers with Viton-coated outer layers to provide durable sealing at a compressed thickness of 0.080" and a 4.630" bore. MLS construction resists corrosion, rebounds under load, and requires no sealants, making these gaskets suitable for aluminum‑to‑aluminum and aluminum‑to‑iron combinations in high-output engines.
Cometic Chevy BB 4.63in Bore .080 inch MLS 396/402/427/454 Head Gasket
