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Cometic MLS cylinder head gasket for Pontiac 400/428/455 V8 engines, specified at a nominal .140 in thickness with a 4.200 in bore. Constructed from multiple embossed stainless steel layers with Viton coating on the outer faces and an uncoated shim layer, the gasket provides sealing strength, rebound, and corrosion resistance. MLS construction seals dissimilar head/block materials without sealants and helps conform load distribution to reduce distortion.
Cometic Pontiac 400/428/455 V8 .140in MLS Cylinder Head Gasket - 4.200in Bore
