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Cometic MLS head gasket for Chevrolet Mark‑IV, GM Gen‑V/VI Big Block V8 features a 4.630" bore and compressed operating thickness of 0.120". Built from multiple embossed stainless steel layers with Viton‑coated outer faces, this multi‑layer steel gasket resists corrosion, conforms to sealing surfaces without sealants, and is suitable for aluminum‑to‑aluminum or aluminum‑to‑iron head/block combinations.
Cometic Chevy Mark-IV GM Gen-V/VI BB 4.630in Bore .120in MLS Head Gasket
