Cometic C5273-140 MLS Cylinder Head Gasket Chevy Small Block Bore - 4.200

The Cometic C5273-140 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This precision-manufactured gasket features a 4.200" bore diameter and .140" compressed thickness, making it ideal for performance rebuilds and high-compression applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.200" bore diameter accommodates oversized pistons and performance builds
• .140" (3.6mm) compressed gasket thickness
• Designed for 18-degree and 23-degree cylinder head angles
• Valve pocketed bore design prevents valve-to-gasket contact
• Integrated steam holes for proper coolant circulation
• Compatible with Chevrolet Gen-1 Small Block V8 engines (265, 283, 302, 305, 327, 350, 400)

Cometic's MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to provide exceptional combustion sealing, even under extreme cylinder pressures. The embossed sealing beads and strategic layer count ensure consistent clamping pressure across the entire gasket surface. This gasket is designed for performance applications where reliability and precision are critical.