Cometic C9720 HD Copper Head Gasket for Harley EVO 1340 3-13/16 Bore .020 Thick

The Cometic C9720 is a premium copper head gasket specifically designed for Harley-Davidson Evolution 1340 engines. This high-performance gasket features a 3-13/16 inch (3.8125") bore diameter with a .020 inch compressed thickness, providing precise compression control and reliable sealing for big bore applications.

Key Features:

• Heavy-duty copper construction for superior heat dissipation and durability
• 3-13/16 inch bore diameter accommodates big bore cylinders
• .020 inch compressed thickness for precise compression tuning
• Designed specifically for Harley-Davidson Evolution 1340 engines
• Multi-Layer Stopper (MLS) copper design ensures maximum sealing reliability
• Embossed sealing beads provide excellent compression and oil sealing
• Resists blown gaskets under high-performance conditions

Cometic copper head gaskets are engineered for performance applications where precise compression ratios and consistent sealing are critical. The copper material provides excellent thermal conductivity to prevent hot spots, while the embossed design ensures even clamping pressure across the entire sealing surface. Ideal for modified engines, racing applications, or high-performance rebuilds.