Cometic C5273-056 MLS Head Gasket Chevy Small Block Bore Thick - 4.200 056

The Cometic C5273-056 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Gen-1 Small Block V8 engines. This high-performance gasket features a 4.200-inch bore diameter with a compressed thickness of .056 inches, making it ideal for performance builds requiring precise compression control and superior sealing.

Key Features:

• Multi-Layer Steel (MLS) construction for maximum durability and superior sealing under extreme conditions
• 4.200-inch bore diameter accommodates performance bore sizes
• .056-inch compressed thickness for precise compression ratio tuning
• Valve pocketed bore design provides clearance for high-lift camshafts and performance valvetrain components
• Compatible with 18-degree and 23-degree cylinder head designs
• Integrated steam holes for proper coolant circulation
• Engineered for Chevrolet Gen-1 Small Block V8 applications (262-400 cubic inch)

Cometic MLS gaskets utilize multiple layers of stainless steel with proprietary coatings to create a gasket that maintains seal integrity through extreme temperature cycling and cylinder pressure. The embossed layers provide multiple sealing points while allowing the gasket to conform to minor surface imperfections. This design makes the C5273-056 an excellent choice for street performance, racing, and forced induction applications where reliability is critical.