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The Cometic MLS head gasket for GM Gen-V/VI Big Block V8 with a 4.375in bore and .027in nominal thickness is built to deliver reliable sealing in high-output big-block engines. Multiple embossed stainless steel layers with Viton-coated outer faces provide rebound and corrosion resistance, while an uncoated center shim allows thickness variation. MLS construction helps distribute clamp load, reduces bore distortion, and seals mixed-material head and block interfaces without sealants.
Cometic GM Gen-V/VI Big Block V8 .027in MLS Cylinder Head Gasket - 4.375in Bore
