Cometic C5272-056 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.165

The Cometic C5272-056 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This precision gasket features a 4.165-inch bore diameter and .056-inch compressed thickness, making it ideal for performance and racing applications where superior sealing and durability are essential.

Key Features:

• Multi-Layer Steel (MLS) construction provides maximum sealing under extreme cylinder pressures
• 4.165-inch bore diameter accommodates performance builds with enlarged cylinder bores
• .056-inch compressed thickness for optimal compression ratio tuning
• Designed for 18-degree and 23-degree aftermarket performance cylinder heads
• Valve pocketed bore design prevents interference with oversized valves
• Integrated steam holes for proper coolant circulation
• Superior resistance to blown gaskets compared to traditional composite materials

Cometic MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to maintain seal integrity through thermal cycling and engine movement. The valve relief pockets and steam hole configuration ensure compatibility with high-performance cylinder heads while maintaining proper engine cooling. This gasket is the professional choice for racers and enthusiasts building high-compression or forced-induction small block Chevrolet engines.