Cometic C5816-051 MLS Cylinder Head Gasket for Chevrolet Big Block Bore - V8 4.320

The Cometic C5816-051 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines. This precision gasket features a 4.320-inch bore diameter and a compressed thickness of .051 inches, making it ideal for high-performance and racing applications where reliability under extreme conditions is critical.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability
• 4.320-inch bore diameter designed for Mark IV Big Block engines
• .051-inch compressed thickness for optimal compression ratio tuning
• Accommodates thermal expansion and cylinder head movement better than traditional gaskets
• Ideal for high-performance, racing, and forced induction applications
• Coated surface for enhanced sealing properties

Cometic MLS gaskets are the choice of professional engine builders and racers worldwide. The multiple layers of stainless steel with specialized coatings create a gasket that rebounds and reseals under extreme cylinder pressures and temperatures. This gasket is designed to handle the demands of modified engines while maintaining consistent compression and preventing coolant or oil leaks.