Cometic C5402-080 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.160 080

The Cometic C5402-080 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 4.160-inch bore diameter and .080-inch compressed thickness, making it ideal for performance builds and engine rebuilds requiring reliable sealing under extreme conditions.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability compared to traditional composite gaskets
• 4.160-inch bore diameter accommodates standard and slightly oversized cylinder bores
• .080-inch compressed thickness allows for precise compression ratio tuning
• Designed for aftermarket cylinder heads with undersized water ports for custom port matching and flow optimization
• Compatible with Chevrolet Gen-1 Small Block V8 engines including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch variants
• Engineered to withstand high combustion pressures and temperatures in performance applications
• Requires proper surface preparation and torque specifications for optimal sealing

Cometic gaskets are manufactured using advanced materials and precision manufacturing processes to ensure consistent quality and performance. The MLS design features multiple layers of stainless steel with elastomeric coatings that conform to sealing surfaces while maintaining excellent recovery properties. The undersized water ports allow engine builders to custom-match coolant passages to specific cylinder head designs for improved flow characteristics.