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The Cometic MLS head gasket for Chevrolet Mark-IV big block V8 (4.375" bore, .092" compressed thickness) is made from multiple embossed stainless steel layers with Viton-coated outer layers and an uncoated stainless center shim. MLS construction provides rebound and corrosion resistance, accommodates differing head/block materials, and is engineered to require less clamp load while helping to reduce bore distortion in high-output applications.
Cometic Chevrolet Big Block 396/402/427/454 4.375in Bore .092in Thick MLS-5 Head Gasket
