Cometic Harley-Davidson EVO Stock Bore 3.500in H&B Set,.040inH/G, .020inB/G, Big Tw - C9689-HB

The Cometic Harley-Davidson EVO Stock Bore 3.500in H&B Set,.040inH/G, .020inB/G, Big Tw - C9689-HB is a precision-engineered head gasket with a 3.500 bore and .500" compressed thickness.

The Cometic premium head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Built with Cometic's premium materials, this gasket meets or exceeds OEM specifications for durability and sealing performance. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.

• Bore Size: 3.500
• Thickness: .500" compressed
• Part Number: C9689-HB