Cometic C5666-023 Ford Series MLS Cylinder Head Gasket Bore - 385 4.400

The Cometic C5666-023 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Ford 385 Series engines. This precision-manufactured gasket features a 4.400-inch bore diameter and a compressed thickness of .023 inches, making it ideal for performance and racing applications where reliability under extreme conditions is critical.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability
• 4.400-inch bore diameter accommodates stroker and big-bore builds
• .023-inch compressed thickness for optimal compression ratio tuning
• Designed specifically for Ford 385 Series engines (429, 460)
• Embossed stainless steel outer layers with viton rubber coating resist corrosion and extreme temperatures
• Allows for high-cylinder pressures in turbocharged, supercharged, and high-compression applications

Cometic MLS gaskets are the choice of professional engine builders and racers worldwide. The multiple-layer design allows the gasket to conform to minor surface imperfections while maintaining excellent torque retention and reusability. This gasket requires a smooth surface finish (30 RA or better recommended) for optimal sealing performance.