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Cometic MLS cylinder head gasket for Chevrolet Gen-1 small block V8, 4.004" bore and .040" thickness, compatible with 18/23 degree heads. Constructed from three to five stainless steel layers, the embossed outer layers are coated on both sides with Viton rubber rated to 250°C (482°F) for demanding sealing environments. The uncoated shim center allows thickness variation while the layered MLS design resists corrosion, rebounds under load, and seals without sealants.
Cometic Chevy Gen-1 Small Block V8 .040in MLS Cylinder Head Gasket - 4.004in Bores
