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The Cometic MLS head gasket for Pontiac 400/428/455 V8 (4.380 inch bore) combines embossed stainless steel layers with Viton-coated outer surfaces and a compressed operating thickness around 0.098 inch. A center uncoated stainless shim allows thickness variation. MLS construction provides durable sealing without sealants, copes with aluminum-to-aluminum or aluminum-to-cast-iron assemblies, rebounds under load, and improves load distribution to protect bore integrity.
Cometic Pontiac 400/428/455 V8 .084in MLS Cylinder Head Gasket - 4.380in Bore
