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Cometic's MLS head gasket for Chevrolet 348/409 W-Series Big Block V8 (4.437 in bore) features a .045 inch compressed operating thickness and embossed outer layers coated with Viton. The multi-layer stainless construction rebounds, resists corrosion and seals aluminum-to-iron joints without sealants. The uncoated center shim layer accommodates thickness requirements and helps reduce clamp load and bore distortion.
Cometic Chevrolet 348/409 W-Series Big Block V8 .045in MLS Cylinder Head Gasket - 4.437in Bore
