What Is Up With My Pulleys

billison

I like tinted tail
15 Year Member
Feb 27, 2006
2,607
1,094
184
stl
short version, measured my pullies before I swap them for some stockers.

These sizes are a tad big because I used the lip.

But alt was 2.5 but it's a stock 3G pulley

Water pump was nearly 6" ( under drive right?)

And crank was 6 1/8th (possibly stock?)

Figure the crank is closer to 6 or under with the lip, but that still leaves me with a huge water pump pulley. Gonna swap a buddy fir stock ones but don't wanna scare him over
 
Sounds like stock pullies to me.


I think my dnderdrive water pump pulley is 5" or so, but the crank is 4-5".



1993 cobra came with a 4" water pump pulley as a way of helping with cooling. It was a popular upgrade for many until Ford discontinued it. I did manage to model one up if someone wants to spin one on a lathe. Capture.webp
 
Last edited:
Only posting to bring the post to a close. I got some stock pullies in a trade. I was correct, my crank was stock and my wp was underdrive. So problem solved. Thanks for the help!