Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
This Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 features a 4.630‑inch bore and a compressed operating thickness of 0.066 inches. Constructed from multiple embossed stainless steel layers with outer Viton coating, the MLS design provides strong sealing for high‑output engines without sealants and accommodates aluminum‑to‑aluminum or aluminum‑to‑cast‑iron applications while resisting corrosion and rebounding under load.
Cometic BB 4.630in Bore .066 inch MLS-5 396/402/427/454 Head Gasket
