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Cometic multi-layer steel (MLS) head gaskets for Chrysler 392/354/331 with a 4.000" bore and .040" compressed thickness use multiple embossed stainless steel layers with Viton-coated outer faces. The uncoated stainless shim layer controls thickness while embossed outer layers and Viton coating improve sealing, corrosion resistance, and rebound. MLS construction provides robust sealing for mixed head/block material combinations without sealants.
Cometic Dodge Hemi 392/354/331 4.000 inch Bore .040 inch MLS Head Gasket
