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  • 1965 - 1973 Classic Mustangs -General/Talk-

4 bolt crank pulley ?

  • Thread starter Thread starter JohnL
  • Start date Start date Apr 16, 2019
J

JohnL

New Member
Apr 16, 2019
1
0
1
Fairbanks, AK
Apr 16, 2019
#1
  • Apr 16, 2019
  • #1
Hey all, new here. I'm in the process of swapping out a new built up 302 roller everything into my wife's 66 coupe with a 289 in it. My new motor has the 4 bolt crank pulley balancer. What 4 bolt pulley do I need to still use the accessories from her 66 289 3 bolt crank. I want to make sure the two betls line up. It's an AC car, but we don't have the AC on it and probably won't replace it for a long time. SO a 3 groove pulley will be fine. But a 2 groove would also do me well. Any help on that would be appreciated.


John
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Apr 17, 2019
#2
  • Apr 17, 2019
  • #2
start your search here;

https://www.summitracing.com/search...wordMatch&SortOrder=Ascending&keyword=pulleys
 
R

rustaddict

Active Member
Aug 23, 2014
218
55
38
Apr 19, 2019
#3
  • Apr 19, 2019
  • #3
I ran into that issue with my 68 coupe. I ended up going with this balancer https://www.summitracing.com/parts/pfs-80007/overview/make/ford that let me keep the old style alternator, belts, pulleys ( including the old 3 bolt crank pulley. This balancer is drilled and tapped for the 3 bolt pulley and the 4 bolt pulley ) and brackets that would have been on the 68 302. I kept the old style water pump and timing cover too. If you buy an aftermarket balancer make sure you get the 50 oz one.
 
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