where to find a smaller crank pulley
 

What car would have a smaller crank pulley for my 351w?
I'm having trouble keeping belts on th alternator.
Everything seem aligned properly now and I still keep tossing belts. I even use the "good" belts.(gatorbacks)

I was told to use a smaller diameter crank pulley to underdrive the alternator.
I just wanted to know what cars would have a smaller pulley.
Mine measures 8 inches.

Re: where to find a smaller crank pulley
 

Screw the smaller crank pulley what you need is a deep groove alternator pulley.

Its an off the shelf part at the auto parts store.

Re: where to find a smaller crank pulley
 

What auto parts stores? I've never seen anything like that, on the shelves, at any auto parts store.

Re: where to find a smaller crank pulley
 

We bought one for my brothers camaro last year from checker auto parts. If yours doesnt have them look in summit. Throwing the alternator belt is a common problem and a deep groove pulley is the answer.

Re: where to find a smaller crank pulley
 

I found a 5.5 inch crank pulley from summit which would underdrive my alternator and water pump giving me a little more HP also.