custom designed for the 2.9 liter whipple superchargers utilized by weistec and their 8 rib supercharger kits. psi's listed are only an estimate and actual will vary due to differences between engine configurations.
if selecting custom size option, email us at sales@eightysixtuned.com for the exact size you need.
pulleys are made to order. expect a 2-6 week turn around time before product ships.
absolutely no refunds as these are made to order.