Cometic C5273-027 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.200

The Cometic C5273-027 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 .027" compressed thickness and accommodates a 4.200" bore diameter, making it ideal for performance builds and rebuilds requiring reliable sealing under high compression and temperature conditions.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability
• .027" compressed thickness for precise compression control
• 4.200" bore diameter designed for oversized or performance bores
• Compatible with 18-degree and 23-degree cylinder heads
• Valve pocketed bore design for clearance with larger valves
• Integrated steam holes for proper coolant circulation
• Stopper layer technology prevents gasket failure from extreme cylinder pressures

Cometic's MLS head gaskets are constructed from multiple layers of stainless steel with a Viton rubber coating, providing exceptional resistance to heat, pressure, and corrosion. The valve pocketed design accommodates aftermarket performance heads with larger valve designs, while the steam hole configuration ensures proper engine cooling. This gasket is an excellent choice for street performance, race, and high-boost applications where reliability is critical.