Cometic C5270-051 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.100

The Cometic C5270-051 is a multi-layer steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This precision gasket features a compressed thickness of .051 inches and is designed for 4.100-inch bore applications, making it ideal for performance builds and engine rebuilds requiring reliable sealing under high-compression conditions.

Key Features:

• Multi-layer steel construction provides superior sealing and durability
• 4.100-inch bore diameter accommodates stroker and performance builds
• .051-inch compressed thickness for precise compression ratio tuning
• Valve pocketed bore design for improved valve-to-piston clearance
• Compatible with 18-degree and 23-degree cylinder heads
• Engineered for Chevrolet Gen-1 Small Block V8 engines (262-400ci)

Cometic's MLS gasket technology uses multiple layers of stainless steel with advanced coatings to create a gasket that rebounds and seals better than traditional composite gaskets. The embossed layers provide multiple sealing points while allowing the gasket to conform to minor surface imperfections. This design is particularly effective in high-performance applications where cylinder pressures and temperatures exceed stock specifications.

The valve pocketed bore configuration ensures adequate clearance for performance camshafts and increased valve lift without interference. This gasket is compatible with both 18-degree and 23-degree valve angle cylinder heads commonly found in aftermarket performance heads for Small Block Chevy applications.