Cometic C5636-070 MLS Cylinder Head Gasket GM/Mercury Marine Gen-IV/V/VI Bore - 4.580

The Cometic C5636-070 is a high-performance multi-layer steel (MLS) cylinder head gasket engineered for GM and Mercury Marine big block V8 Gen-IV, Gen-V, and Gen-VI engines. This premium gasket features a .070" compressed thickness and is designed to accommodate a 4.580" bore diameter, making it ideal for performance marine and automotive applications.

Key Features:

• Multi-layer steel construction provides superior sealing and durability under high-stress conditions
• .070" (1.78mm) compressed thickness for precise compression ratio tuning
• 4.580" bore diameter compatible with big block V8 engines
• Designed for engines with 4 bolts in the lifter valley configuration
• Compatible with GM Gen-IV, Gen-V, and Gen-VI big block V8 engines
• Suitable for Mercury Marine performance marine applications

Cometic's MLS gaskets are constructed from multiple layers of stainless steel, providing excellent recovery characteristics and maintaining seal integrity through extreme temperature cycles and cylinder pressure variations. The embossed design ensures even load distribution across the sealing surface for reliable long-term performance.