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The Cometic MLS head gasket for Chevrolet ZL1 Mark-IV Big Block V8 (4.375" bore, nominal .051") is built from layered stainless steel with Viton-coated outer faces for durable sealing under high pressure and temperature. MLS construction tolerates mixed-material heads and blocks without sealants and rebounds to resist corrosion and shearing forces. The center shim is uncoated stainless steel and can be varied to meet specific thickness and sealing demands.
Cometic Chevrolet ZL1 Mark-IV Big Block V8 .051in MLS Cylinder Head Gasket - 4.375in Bore
