i have a power torque belt 615k6 and its to long, any one know what belt to use my car is stuck now till i get a belt. It is the smaller alt and crank pullies.

 

Good luck.
I have the areomotives and they could never tell me what size belt would fit.
I don,t think there is one.
I am running just the crank pulley cause with the alt pulley on it I could never find a belt that fit.

 

AFAIK, all the underdrive pulleys are the same size.

You can try the belt Thunder Racing sells for March ALT overdrive and crank underdrive setups... link here.

 

i got one now, its a 58 1/2 or 59" belt, Iam having problems with the car since putting them on now. The car seems to have a real bad mis at 4500 i mean bad mis. my tail light are acking up now[ not sure if it the pullies] and i got a real loud backfire when i was just driving the car from the tail pipe, i thought the car blow up it was so loud.