Cometic C5816-086 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for 4.320

The Cometic C5816-086 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines with a 4.320-inch bore diameter. This .086-inch thick gasket provides exceptional sealing performance and durability in high-performance and racing applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior combustion sealing
• .086-inch (2.18mm) compressed thickness for precise compression ratio tuning
• 4.320-inch bore diameter designed for standard and performance big block builds
• Engineered for Chevrolet Mark IV Big Block V8 engines (396, 402, 427, 454, 496, 502 cubic inch variants)
• Embossed stainless steel layers with Viton rubber coating resist extreme temperatures and pressures
• Re-torque capability allows for multiple installations
• Compatible with aluminum and cast iron cylinder heads

Cometic MLS gaskets are the choice of professional engine builders and racers worldwide, offering exceptional reliability in high-boost, nitrous, and naturally aspirated applications. The layered steel design accommodates cylinder head movement and minor surface imperfections while maintaining superior sealing integrity throughout the engine's operating range.