Cometic C5474-040 MLS Cylinder Head Gasket Chevy Small Block Bore - 4.080

The Cometic C5474-040 is a premium multi-layer steel (MLS) cylinder head gasket designed specifically for Chevrolet Generation 1 Small Block V8 engines. This gasket features a .040" compressed thickness and accommodates a 4.080" bore diameter, making it ideal for performance builds and engine rebuilds requiring precise sealing.

Key Features:

• Multi-layer steel (MLS) construction provides superior sealing and durability under high heat and pressure
• .040" compressed gasket thickness allows for precise compression ratio tuning
• 4.080" bore diameter accommodates stock and slightly overbored applications
• Valve pocketed bore design prevents valve-to-gasket interference
• Engineered for Vortec cylinder heads with proper coolant and oil passage alignment
• Embossed stainless steel construction with Viton rubber sealing beads

Cometic MLS gaskets are engineered to withstand extreme conditions in high-performance and racing applications. The multi-layer design allows the gasket to conform to minor surface imperfections while maintaining a consistent seal. Each layer is coated with a specialized material to provide additional sealing properties and prevent corrosion. This gasket is compatible with Chevrolet Small Block V8 engines including 265, 283, 302, 305, 307, 327, 350, and 400 cubic inch variants when paired with appropriate Vortec-style cylinder heads.