RBS has found this pulley to be of great help when trying to drive a serpentine six rib acc. off the front of a blown BBC motor. It is made from billet alum. and uses the standard six rib serpentine drive to drive the acc. The pulley has a 2.00" male register for the blower pulley and 2.275" male register for the harmonic dampner. Pulley mounts to a harmonic dampner using the industry standard three bolt pattern. Pulley is 1.250" thick and includes a heat treated steel mounting hardware kit.
Buyer can choose between 6.00" or 7.50" overall diameter from the drop down menu.