Cometic C5641-092 GM/Mercury Marine Gen-IV Big Block MLS Cylinder Head Gasket - V8

The Cometic C5641-092 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM and Mercury Marine Gen-IV big block V8 engines with a 1050 cubic inch displacement. This precision gasket features a 4.600-inch bore diameter and .092-inch compressed thickness, providing optimal sealing under extreme combustion pressures and temperatures.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.600-inch bore diameter designed for big block applications
• .092-inch (92 thousandths) compressed gasket thickness
• Includes two slotted lifter valley bolt provisions for proper block sealing
• Engineered for GM and Mercury Marine Gen-IV 1050 big block V8 engines
• Advanced material composition resists blowout and maintains seal integrity

Cometic's MLS gaskets utilize multiple layers of stainless steel with proprietary coatings to create a gasket that conforms to irregular sealing surfaces while maintaining exceptional recovery properties. The slotted lifter valley bolt design ensures complete sealing of the engine block's internal passages, preventing oil leaks and maintaining proper lubrication system integrity. This gasket is ideal for high-performance street, marine, and racing applications where reliability and precision sealing are critical.