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The Cometic MLS head gasket for GM Gen-V/VI Big Block V8 with a 4.375in bore and .045in nominal thickness is engineered for robust sealing performance. It uses multiple embossed stainless steel layers with Viton-coated outer faces and an uncoated shim layer to provide rebound, corrosion resistance, and tailored thickness options. MLS construction helps spread clamp load, reduce bore distortion, and seal demanding aluminum-to-aluminum or aluminum-to-iron applications without supplemental sealants.
Cometic GM Gen-V/VI Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in Bore
