With NHRA Top Fuel proven technology, these 7 1/4" clutch kits have the only friction material designed to endure the required slippage of drag racing. With multiple diaphragm spring pressures, this clutch is able to suit individual applications. It has a high clamp to wear ratio, low moment of inertia, and has an open clutch cover design to keep the unit running cooler under heavy use. The kits can be ordered single, twin, or triple disc configurations. These kits include a racer rebuildable disc and floater packages along with replacement part availability, which make this the best value clutch on the market. The clutch is manufactured to high precision tolerances to keep fitment and assembled concentricity perfect which help reduce harmful resonances within the engine and drivetrain. kits are designed to fit most 7 1/4" industry standard flywheel bolt patterns with .100 pull down. These kits are available for Chevy, Ford, Honda, Toyota, and many other vehicles. All components are made from billet aluminum or steel.