Used 8mm 63 GT center flange alum. blower pulley. This pulley is 3.50" wide and has a 2.00" register with six .437" bolt holes on a 2.782" bolt circle. This pulley is made from billet alum. and is hard anodized for wear resistance.
Pulley has been thru some battles, has some rub marks on the rear, three teeth have a about .375" of the tooth missing where something hit it and ten teeth has some small little nicks on them.