117/124 Thumper Kit

117/124 THUMPER KIT

The new 124” CVO Thumper Kit is the go-to for the customer wanting to get the most performance out of their CVO Motor. The CVO Thumper Head features oversized valves and the intake port is welded so we can raise both the floor and the top side of the port, increasing both flow and velocity. We pair this head with a set of 4.125” ductile iron cylinders and our high compression pistons. Our pistons can be equipped with a set of gas ported rings to allow better seal on high compression motors. When utilizing one of our performance cams, an oversized throttle body and performance pipe, we have achieved 150+ HP and comparable TQ on every day riders. Due to the water jackets, the Thumper Program is only available on the air-cooled heads.

$3,862.86

*Price does not include NC Sales Tax or shipping