Up to approx.150HP. With 7 x 5/16" carbide steel balls. Optional High Horsepower diaphragm clutch spring, complete with additional centrifugal force carbide steel steel lock-up balls. Used in combination with the stock balls of the clutch kit, for more extreme engine builds. Note: See fmc-590-772 for up to approx. 180HP motors.
Fits: > Optional for fmc-588-795 and fmc-588-796 Competitor balls clutches
