Cometic C5402-066 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.160 066

The Cometic C5402-066 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. Featuring a 4.160-inch bore diameter and .066-inch compressed thickness, this gasket is designed for aftermarket cylinder heads and high-performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
• 4.160-inch bore diameter accommodates standard and slightly over-bored small block Chevy engines
• .066-inch (1.68mm) compressed gasket thickness for precise compression ratio tuning
• Undersized water ports allow for custom port matching and flow optimization when used with aftermarket heads
• Embossed stainless steel construction with multiple layers for maximum recovery and torque retention
• Eliminates the need for sealants or re-torquing procedures
• Compatible with Gen-1 small block Chevy engines including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch displacements

Cometic MLS gaskets are manufactured using advanced materials and precision engineering to meet the demands of racing, forced induction, and high-output street applications. The undersized water port design gives engine builders the flexibility to machine ports to exact specifications for optimal coolant flow with aftermarket cylinder heads.