Cometic C15498-040 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.200

The Cometic C15498-040 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation I Small Block V8 engines with 4.200-inch bores. This .040-inch thick gasket is designed for high-performance applications where superior sealing and durability are essential.

Key Features:

• Multi-Layer Steel construction provides excellent conformability and superior combustion sealing
• 4.200-inch bore diameter accommodates stroker and overbored small block builds
• .040-inch compressed thickness allows for precise compression ratio tuning
• Compatible with both 18-degree and 23-degree cylinder head angles
• Embossed stainless steel layers with Viton rubber sealing beads
• Eliminates gasket failure in high-heat, high-pressure environments

Cometic MLS gaskets are the industry standard for racing and high-performance street applications. The multi-layer design allows the gasket to recover and maintain sealing pressure even under extreme cylinder pressure and thermal cycling. This gasket is ideal for turbocharged, supercharged, and naturally aspirated builds requiring reliable head sealing with aftermarket cylinder heads.