Cometic C9984-027 MLS Head Gasket Set for Harley-Davidson Shovelhead .027" Standard Bore 1966-1984

The Cometic C9984-027 is a premium Multi-Layer Steel (MLS) head gasket set designed specifically for Harley-Davidson Shovelhead 74" and 80" engines from 1966 to 1984. This pair of head gaskets features an ultra-thin .027" compressed thickness for precise compression control and sealing performance.

MLS Construction:

• Three-layer design with a center stainless steel shim layer sandwiched between two embossed spring steel outer layers
• Outer layers feature Viton rubber coating for superior chemical and heat resistance
• Embossed sealing beads provide optimal load distribution across the gasket surface
• Standard 3.500" bore size for stock displacement engines

Key Features:

• Manufactured from premium fuel-resistant materials that will not creep, crack, or become brittle
• No additional sealants or re-torquing required
• Superior rebound characteristics maintain seal integrity through heat cycles
• Corrosion-resistant stainless steel construction
• Made in the USA with American-sourced materials

This gasket set is engineered to provide maximum sealing performance for high-output and performance-built Shovelhead engines. The .027" thickness allows engine builders to fine-tune compression ratios while maintaining reliable cylinder head sealing. Includes two gaskets for complete engine assembly. Replaces OEM Harley-Davidson part number 16770-66.