super charger pulley size

[lowone06]

i have a vortec charger how do i mesure my pulley to tell what size it is

 

[TheBocSez]

Its normally stamped on the front of the pulley along the outter edge. Something like 3.33 or 2.95 ect...

 

[lowone06]

there is nothing there

 

[BLOWN 5.0 FOX]

measure the circumfrence and divide by 3.14 that should get you the answer.. i think... anyone who payed attention in geometry class chime in