Cometic C5031-052 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.165

The Cometic C5031-052 is a premium multi-layer steel (MLS) cylinder head gasket engineered specifically for first-generation Chevrolet Small Block V8 engines. This high-performance gasket features a compressed thickness of .052 inches and accommodates a 4.165-inch cylinder bore diameter, making it ideal for performance builds and engine rebuilds requiring precise sealing.

Key Specifications:

• Compressed gasket thickness: .052 inches (1.32mm)
• Cylinder bore size: 4.165 inches
• Compatible with 18-degree and 23-degree cylinder heads
• Round bore design for optimal sealing
• Multi-layer steel construction with MLX technology
• Application: Chevrolet Gen-1 Small Block V8 engines

Advanced MLS Construction:

Cometic's MLX (Multi-Layer Stopper) gaskets utilize multiple layers of stainless steel with strategically placed embossed stopper layers around the combustion chamber. This design provides superior sealing under extreme cylinder pressures and accommodates minor surface imperfections. The MLS construction allows for controlled compression and excellent recovery properties, maintaining a reliable seal through repeated heat cycles and temperature extremes.

Performance Benefits:

• Excellent conformability to cylinder head and block surfaces
• Superior resistance to combustion pressure and thermal expansion
• Reusable in many applications when properly installed
• Compatible with aluminum and iron cylinder heads
• Designed for high-performance and racing applications

This gasket is compatible with both 18-degree and 23-degree aftermarket performance cylinder heads commonly used in Small Block Chevy race engines. The precise 4.165-inch bore accommodates over-bored engines and performance builds beyond the stock displacement. Cometic gaskets are manufactured in the USA using premium materials and are trusted by professional engine builders and racers worldwide.