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Cometic MLS cylinder head gasket for Chevrolet 348/409 W‑Series big block V8 engines, specified for a 4.437in bore and .027in thickness. Cometic’s MLS construction uses multiple stainless steel layers with embossed outer layers coated in Viton rubber to withstand harsh sealing environments and high temperatures. The design offers reduced clamp load, conforms load distribution across the sealing area and resists corrosion and heat for durable head sealing in classic big‑block applications.
Cometic Chevrolet 348/409 W-Series Big Block V8 .027in MLS Cylinder Head Gasket - 4.437in Bore
