Cometic C5245-120 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.060

The Cometic C5245-120 is a premium Multi-Layer Steel (MLS) cylinder head gasket designed specifically for first-generation Chevrolet Small Block V8 engines. Engineered for high-performance and racing applications, this gasket features Cometic's proven MLS construction that provides superior sealing under extreme cylinder pressures and temperatures.

Key Specifications:

• Bore Size: 4.060 inches - ideal for stroker and overbored applications
• Compressed Thickness: .120 inches (120 thousandths) for precise compression ratio tuning
• Head Angle Compatibility: Designed for 18-degree and 23-degree cylinder heads
• Bore Design: Round bore configuration
• Construction: Multi-Layer Steel (MLS) with multiple layers of stainless steel for maximum durability

Performance Benefits:

• Superior combustion seal compared to composite gaskets
• Excellent resistance to extreme temperatures and pressures
• Reusable gasket design when properly installed and removed
• No retorque required after initial installation
• Ideal for turbocharged, supercharged, and naturally aspirated high-compression builds

Cometic MLS gaskets feature a Viton rubber coating on both sides that provides micro-sealing at the head and block surfaces. The multiple layers of stainless steel allow the gasket to move with the engine's thermal expansion while maintaining a positive seal throughout the operating range.

This gasket is compatible with Gen-1 Chevrolet Small Block V8 engines including 262, 265, 283, 302, 305, 307, 327, 350, and 400 cubic inch displacements when equipped with compatible 18-degree or 23-degree aftermarket cylinder heads.