Cometic C5433-036 MLS Cylinder Head Gasket Chevy Big Block Bore - for V8 4.570

The Cometic C5433-036 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines. This high-performance gasket features a .036" compressed thickness and is designed for a 4.570" bore diameter, making it ideal for performance builds and engine rebuilds.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability under high-performance conditions
• .036" (0.91mm) compressed thickness provides precise combustion chamber volume control
• 4.570" bore diameter accommodates standard and performance applications
• Designed specifically for aftermarket cylinder heads with customizable water port sizing
• Undersized water ports allow for custom porting and optimization to match your specific head configuration
• Compatible with Chevrolet Mark-IV, GM Gen-V, and Gen-VI Big Block V8 engines

Cometic MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to provide exceptional resistance to combustion pressures, temperature extremes, and head lift. The undersized water port design gives engine builders the flexibility to match port sizes precisely to their aftermarket heads, ensuring optimal coolant flow and sealing performance. This gasket is the professional choice for high-performance street, race, and marine applications where reliability and precision matter.