Cometic C5434-098 MLS Cylinder Head Gasket Chevy Big Block Bore - for V8 4.630

The Cometic C5434-098 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered for Chevrolet Mark IV and GM Generation V/VI big block V8 engines. This premium gasket features a 4.630-inch bore diameter and .098-inch compressed thickness, making it ideal for high-performance and racing applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior strength and sealing capability
• 4.630-inch bore diameter accommodates various engine builds
• .098-inch (2.49mm) compressed thickness for precise deck height control
• Designed for aftermarket cylinder heads with customizable water port configuration
• Undersized water ports allow for custom machining to match specific head castings
• Compatible with Chevrolet Mark IV and GM Gen V/VI big block V8 engines
• Excellent for high-compression and forced induction applications

Cometic's MLS gasket technology utilizes multiple layers of stainless steel with advanced coating materials to create a gasket that can withstand extreme cylinder pressures and temperatures. The undersized water port design gives engine builders the flexibility to match port sizes precisely to their specific aftermarket heads, ensuring optimal coolant flow and preventing leakage. This gasket is a professional-grade choice for serious performance builds, providing the durability and reliability demanded by racing and high-performance street applications.