Cometic C5635-056 MLS Cylinder Head Gasket GM Mercury Marine Gen-IV/V/VI Bore - 4.530

The Cometic C5635-056 is a premium multi-layer steel (MLS) cylinder head gasket engineered specifically for GM and Mercury Marine big block V8 Gen-IV, Gen-V, and Gen-VI applications. This gasket features a .056-inch compressed thickness and is designed for engines with a 4.530-inch bore diameter.

Key Features:

• Multi-layer steel construction for superior sealing and durability
• Designed for 4 bolt lifter valley configuration
• .056-inch compressed thickness for precise compression control
• 4.530-inch bore diameter accommodates big block displacement
• Compatible with GM and Mercury Marine Gen-IV, Gen-V, and Gen-VI big block V8 engines
• Manufactured to OEM specifications with enhanced sealing technology

Cometic MLS gaskets utilize multiple layers of stainless steel with a viton rubber coating to create a superior seal that can withstand extreme cylinder pressures and temperatures. The embossed sealing beads provide excellent recovery characteristics and maintain sealing integrity even under high-performance conditions, making this gasket ideal for both marine and high-performance automotive applications.