Cometic Jims 4in Big Bore Head & Base Kit .040in H/G .020inB/G - C9945

The Cometic Jims 4in Big Bore Head & Base Kit .040in H/G .020inB/G - C9945 is a precision-engineered head gasket with a compressed thickness of .040".

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.

• Thickness: .040" compressed
• Part Number: C9945