Cometic C9712-2 HD Shovel Head Cylinder Base Gasket 3-5/8 Bore .043 Thick 2-Pack

The Cometic C9712-2 is a high-performance cylinder base gasket set designed specifically for Harley-Davidson Shovelhead engines with 3-5/8 inch big bore cylinders. This 2-pack includes premium MLS (Multi-Layer Steel) gaskets engineered to provide superior sealing and durability in high-compression applications.

Key Features:

• 3-5/8 inch (3.625") bore diameter for big bore Shovelhead applications
• .043 inch gasket thickness for precise deck height and compression control
• CFM-20 gasket material construction for maximum durability
• Multi-layer steel design provides excellent sealing under extreme temperatures and pressures
• Includes 2 gaskets per package
• Engineered specifically for Harley-Davidson Shovelhead V-twin engines
• Requires no additional sealants or retorquing after installation

Cometic gaskets are manufactured using advanced materials and precision manufacturing processes to ensure consistent quality and performance. The MLS construction allows the gasket to withstand the thermal expansion and contraction cycles common in air-cooled engines, while maintaining a positive seal between the cylinder and crankcase. Ideal for performance builds, restorations, and engine rebuilds requiring reliable, leak-free operation.