Cometic GM/Mercury Marine Big Block V8 Gen IV/V/VI 4.580in Bore .027in MLS Cylinder Head Gasket - C5636-027

The Cometic GM/Mercury Marine Big Block V8 Gen IV/V/VI 4.580in Bore .027in MLS Cylinder Head Gasket - C5636-027 is a precision-engineered head gasket with a 4.580" bore and .580" compressed thickness.

The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.

• Material: Multi-Layer Steel (MLS)
• Bore Size: 4.580"
• Thickness: .580" compressed
• Part Number: C5636-027