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The Cometic MLS head gasket for Pontiac 400/428/455 V8 (4.200in bore, nominal .060in) is constructed from embossed stainless steel layers with Viton and AMP coatings; compressed operating thickness is 0.060". The uncoated stainless shim center can be varied to meet build requirements, helping the gasket conform clamp load, resist corrosion, and deliver consistent, sealant-free sealing between aluminum heads and iron or aluminum blocks.
Cometic Pontiac 400/428/455 V8 .060in MLS Cylinder Head Gasket - 4.200in Bore
