Is this a stock or underdrive crank pulley?

[HuebyStang94]

Hey all,

Well, i'm adding a blower to my car (1994 5.0), and I took off the crank pulley and it doesn't look stock. I'm guessing by the size, etc. that it is a underdrive crank pulley that someone put on before me. Can anyone confirm this? I need to get a stock one now if so (need it for my blower setup)!!! Here is a pic:

 

[93tealstang]

Looks like an underdrive to me. Stock crank pulley's are huge.

 

[notchback]

the stock pulley is the same size as the harmonic balancer....that looks like an UD

 

[st5150]

Were the bolts holding it in hex or allen? Hex=stock.

 

[HappyG]

obviously u/d

 

[TT91]

Aftermarket underdrive.

 

[HuebyStang94]

Thanks guys. Now I gotta find a stock one....

 

[TT91]

Thanks guys. Now I gotta find a stock one....

Wanna get rid of that one?

 

[mackey]

$10 + shipping and mine is yours.

 

[TT91]

$10 + shipping and mine is yours.

Is that for a stock one?

 

[1990Coupe]

Is that for a stock one?

i think he means the u/d one, he needs to find a stock one