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The Cometic MLS head gasket for GM/Mercury Marine Big Block V8 Gen‑IV/V/VI is a .051" compressed-thickness, 4.600" bore gasket with four bolts in the lifter valley. Comprised of multiple embossed stainless steel layers with Viton-coated outer faces, this MLS design resists corrosion, rebounds under load and requires no sealants. It provides robust sealing for aluminum or mixed-material head/block combinations.
Cometic Mercury / Chevy Big Block 4.6in Bore .051 inch MLS Head Gasket
