Used 13.9-41 Tooth Blower Pulley Alum.

Used 13.9-41 tooth blower pulley. This pulley is 3.50" wide and has a 2.00" register made from billet aluminum. Bore has been sanded to fit over crank hub to 2.007" so make sure that is not an issue before purchasing.

Fits 4-71 thru 18-71 roots superchargers. Pulley has six .375" mounting holes on a 2.782" bolt circle and has bee machined t run two motors crank to crank. One bolt hole has been elongated to fit with older crank hubs that use the one offset bolt hole.