Our crank pulley rings are designed for use with our Metco Motorsports Interchangeable Crank Pulley Kit offered for the supercharged Lightning and Harley Davidson truck and the supercharged Mustang Cobra.
These crank pulley rings are precision-machined from billet aluminum and then black-anodized for good looks and long-lasting surface protection.
If you already have the Interchangeable Crank Pulley Kit on your vehicle, one of these crank pulley rings is all that is needed to change your boost level.
Our crank pulley rings are available in several sizes, including an underdrive pulley for use with a Kenne-Bell or Whipple supercharger, a stock-diameter ring, +2 lb, +4 lb, +6 lb, +8 lb, and +10 lbs.
Note: Some pulley rings may be available in a machined finish. Please call or email for availability.