Cometic C5551-060 Chevy Small Block MLS Head Gasket Bore Thick - V8 4.220 060

The Cometic C5551-060 is a premium Multi-Layer Steel (MLX) cylinder head gasket designed specifically for Chevrolet Generation 1 Small Block V8 engines. Engineered for high-performance and racing applications, this gasket features Cometic's advanced MLX construction that provides superior sealing and durability under extreme cylinder pressures and temperatures.

Key Specifications:

• Bore Size: 4.220 inches (round bore design)
• Compressed Thickness: .060 inches
• Multi-Layer Steel (MLX) construction with stainless steel layers
• Compatible with all aftermarket aluminum performance heads
• Designed for Chevrolet Gen-1 Small Block V8 engines (265, 283, 302, 327, 350, 400)

Performance Benefits:

• Superior combustion sealing compared to traditional composite gaskets
• Excellent resistance to blow-out under high boost or compression
• Maintains seal integrity through repeated heat cycles
• Eliminates coolant and oil leakage paths
• Reusable in many applications when properly maintained

Cometic's MLX gaskets feature multiple layers of stainless steel with strategically placed embossments that focus pressure around critical sealing areas including combustion chambers, coolant passages, and oil return holes. The .060-inch thickness allows for precise compression ratio tuning and accommodates minor deck surface imperfections. This gasket is ideal for street performance, road racing, drag racing, and other demanding applications where reliability is paramount.