Cometic C5331-072 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for 4.630

The Cometic C5331-072 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines with a 4.630-inch bore diameter. This precision gasket features a compressed thickness of .072 inches, providing reliable sealing for performance and racing applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and heat resistance
• 4.630-inch bore diameter designed for big bore applications
• .072-inch compressed thickness for optimal sealing
• Engineered for Chevrolet Mark IV Big Block V8 engines (396, 402, 427, 454 cubic inch variants)
• Multiple embossed layers create a superior seal around combustion chambers
• Stopper layer design controls gasket movement and maintains clamp load
• Excellent for high-performance street, strip, and racing applications

Cometic MLS gaskets utilize multiple layers of stainless steel with elastomeric coatings to provide maximum sealing performance under extreme cylinder pressures and temperatures. The gasket's design accommodates engine movement and thermal expansion while maintaining a consistent seal throughout the compression cycle.