95 cobra stock pulley sizes?

[SVT3183]

i think one of the previous owners of my car put on u/d pullies even though they look stock. i need stock pullies because of my s/c but i can't find the sizes anywhere including my haynes manual. i think the crank is supposed to be 5.85" as opposed to a 6" gt crank pulley but the rest are the same. does anyone know the sizes? thanks

 

[bill302]

here a picture of a stock GT pully it measures 6 7/8 in. across.if it will work i have the whole set (alt,waterpump and crank)off a 95 GT i'll sell...

View attachment 475285

 

[SVT3183]

i need the stock size crank pully, which kb claims is 5.85" so the gt one won't work for me. kb also says the gt crank pully is 6.5" though so i don't know whats up with that. as far as the other ones on my car i don't know if they're u/d or not because i can't find the sizes. can anybody help? does anyone know the measurements of their u/d's? i can't find measurements on any of those sets either.

 

[ej95cobra]

I have the gt crank pulley on my cobra with a kb. As noted above the cobra = 5.85", the gt about 6 7/8". I changed to the gt after putting the kb on. It increased the boost level without going to the smaller kb pulley. I originally tried a smaller kb pulley but had too much belt slippage. What are you trying to do and it would seem either pulley would work, though the larger crank pulley will increase boost levels by spinning the sc faster. The larger pulley also turns the the waterpump and alternator slower; but I haven't seen any problems.