Our crank pulley rings are designed for use with our Metco Motorsports Interchangeable Crank Pulley Kit offered for the supercharged Lightning 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. Please make your selection below.
When purchased separately, crank pulley rings do not include the (6) socket-head bolts and ribbed lockwashers used to secure the ring to the pulley hub. If you wish to add these fasteners to your order, please select the appropriate option below.
IMPORTANT NOTE: The 10.5" and 11.0" crank pulley rings are intended for custom installations. The user assumes all responsibility for any modifications required for installation, including the appropriate supporting modifications. No boost level data or belt length data is available for these crank pulley rings.
Note: Some pulley rings may be available in a machined finish. Please call or email for availability.