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Cometic's MLS head gasket for Chevrolet Mark‑IV big‑block V8 engines with a 4.375" bore provides multi‑layer steel construction with embossed outer layers coated in Viton for heat and chemical resistance. At a compressed thickness of 0.051", this gasket seals high‑output engines without sealants, tolerates aluminum‑to‑aluminum and aluminum‑to‑iron mating surfaces, and resists corrosion while reducing clamp load and bore distortion.
Cometic Chevy BB Head Gasket 4.375in Bore .051in MLS 396/402/427/454 Head Gasket
