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Cometic MLS cylinder head gasket for Pontiac 400/428/455 V8 applications, offered with a nominal .040 in thickness and a 4.380 in bore. Multiple embossed stainless steel layers coated with Viton on the outer faces and an uncoated center shim provide sealing strength, rebound, and corrosion resistance. The MLS design seals aluminum heads to aluminum or cast‑iron blocks without sealants while improving load distribution and reducing required clamp load.
Cometic Pontiac 400/428/455 V8 .040in MLS Cylinder Head Gasket - 4.380in Bore
