Hows it going? I've searched all over this board for the diameters of the stock serpentine pulleys for reference purposes but found nothing so I thought I'd post them up:

Crank - 7 3/4"

Water Pump (long) - 6 1/2"

Power Steering - 6 1/2"

Alternator - 2 1/2"

Later,
Phoenix

 

Great Info. Any idea if I can get a shorter belt and reroute it when I delete my AC or do I need an AC delete pulley?

 

I've heard you can only reroute the serpentine belt when removing the smog pump (correct me if i'm wrong). As for the a/c delete, you're going to have to use the a/c delete pulley along with the shorter belt. hope this helps.

Later,
Phoenix

 

do you know how tall the stock tpi crank pulley is?

i was putting a paxton sc on my car and try to use a tbi crank pulley since i had underdrive pullies before, but its looks like the pulley needs to be like 1/4" taller so it can align with the rest of the accessorie's pulleys...

 

Do you mean the offset?

 

yeah well it turns out tbi truck pulleys arent the same as tpi. tpi's have a bigger offset

 

Well you taught me something .

Later,
Phoenix