Cometic C15561-040 Chevrolet Big Block V8 Head Gasket 4.560" Bore .040" MLX

The Cometic C15561-040 is a premium Multi-Layer Stopper (MLX) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines. This high-performance gasket features a 4.560-inch bore diameter and .040-inch compressed thickness, making it ideal for performance builds and street/strip applications.

Key Features:

• Multi-Layer Stopper (MLX) construction with stainless steel layers for maximum durability
• 4.560-inch bore diameter accommodates standard and performance big block configurations
• .040-inch compressed thickness allows for precise compression ratio tuning
• Advanced sealing technology prevents combustion leaks and coolant seepage
• Engineered for Chevrolet Mark IV Big Block V8 engines (396, 402, 427, 454 cubic inch variants)
• Reusable design suitable for multiple installations when properly maintained
• Embossed stainless steel stopper layer provides superior combustion seal

Cometic's MLX gaskets feature multiple layers of stainless steel with a Viton rubber coating, combining the durability of MLS technology with enhanced sealing properties. The stopper layer design concentrates clamping force around the combustion chamber for improved sealing under high cylinder pressures, making this gasket suitable for both naturally aspirated and forced induction applications.