ProCharger CrankDrive for SB/BB/LS/LT

The award winning CrankDrive™ gear drive is capable of supporting 3,500+ horsepower, allows for a variety of accessories, has easy to change gear ratios, and provides maximum efficiency at extreme power levels. Compatible with all the F-1, F-2, F-3, and F-4 ProCharger superchargers models, the CrankDrive is available for most drag racing engine applications.