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Cometic MLS cylinder head gasket for Pontiac 400/428/455 V8 applications, with a nominal .120 in thickness and a 4.200 in bore. Multi‑layer stainless steel construction features embossed outer layers coated with Viton and an uncoated center shim, giving rebound, corrosion resistance, and variable thickness control. This MLS design seals aluminum heads to aluminum or cast‑iron blocks without sealants and helps reduce clamp load and bore distortion.
Cometic Pontiac 400/428/455 V8 .120in MLS Cylinder Head Gasket - 4.200in Bore
