• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Ah belts! Please help!

  • Thread starter Thread starter pyroman
  • Start date Start date Mar 19, 2009
P

pyroman

Founding Member
Jul 28, 2002
480
3
18
Ennis, Texas
Mar 19, 2009
#1
  • Mar 19, 2009
  • #1
I'm putting a 302 roller motor in my 67. I'm trying to transplant as many parts from my 289 that was originally in the car, thus I'm running a V belt setup. The 289 had factory A/C but I'm leaving it out on this conversion. This is what it looks like right now



I have a single groove water pump pulley, and a 3 groove crank pulley. So can I run this setup: apologies for crappy paint edits:



or do I need to use a 2 groove water pump pulley and run this setup:



Thanks for the help!
 

enferno

Member
Jun 20, 2006
418
2
16
Mar 19, 2009
#2
  • Mar 19, 2009
  • #2
First option. Alternator/water pump/crank then ps/crank


Make sure your water pump is the correct rotation though!
 
P

pyroman

Founding Member
Jul 28, 2002
480
3
18
Ennis, Texas
Mar 19, 2009
#3
  • Mar 19, 2009
  • #3
enferno said:
First option. Alternator/water pump/crank then ps/crank


Make sure your water pump is the correct rotation though!
Click to expand...

Ah ok, that makes it easier. However, I got a couple of belts at Oreilly's. One was I think 41 and 7/8" and the other was like 47 and 7/8". The first one was too small for the option 1 and the 2nd one was too big for option 1. I think those were the only two power steering belts at Oreillys. Do they have any other sizes?

Also, I have the 289 timing cover and matching water pump so I believe the rotation is correct.
 

enferno

Member
Jun 20, 2006
418
2
16
Mar 19, 2009
#4
  • Mar 19, 2009
  • #4
the rotation will be correct with that set up then.

just take the belts back and ask them for how every many inches smaller/bigger you need and they should have what you need
 

69gmachine

Member
Dec 2, 2004
576
2
19
Southern Maryland
Mar 20, 2009
#5
  • Mar 20, 2009
  • #5
So long as the ps belt doesn't foul against the wp pulley, I suppose it doesn't matter, but make certain there is clearance with the pulley tightened down in place. I would just go buy a 2 sheave wp pulley.
 
G

Grabber70Mach

Member
Jul 6, 2003
305
0
17
Indian Head, MD
Mar 20, 2009
#6
  • Mar 20, 2009
  • #6
Ok off topic, when you installed the pulley off your old alt to the 3G alt was it a direct swap?
 
P

pyroman

Founding Member
Jul 28, 2002
480
3
18
Ennis, Texas
Mar 20, 2009
#7
  • Mar 20, 2009
  • #7
Grabber70Mach said:
Ok off topic, when you installed the pulley off your old alt to the 3G alt was it a direct swap?
Click to expand...

Yep, didn't have a problem. Are you looking to do the same? If so, the best 3G info I've found is here:

FullSizeBronco.com - 78 - 96 Ford Bronco offroad club, forums, tech, installs

There are alot of variatons of the 3G so there might be some deviations with the pulley. What exactly is the problem?

Here's some additional information




On the topic of the belts, I think I'm going to go with option 2 because it will take side stress off the shaft of the WP. About the pulleys, I have that single groove but I also have a 2 groove off of a Merkur XR4Ti (Ford 2.3L), and it is the same diameter as the single groove, has the same bolt pattern, and with spacers, aligns nicely with the crank pulley. Would this be an ok setup or would it be best to go with the crank and water pump pulleys that came on non-AC, PS cars?
 
G

Grabber70Mach

Member
Jul 6, 2003
305
0
17
Indian Head, MD
Mar 21, 2009
#8
  • Mar 21, 2009
  • #8
Yes I am getting ready to do the 3G upgrade, using the ALT out of a 94-95 V8 mustang. Going to get the pulley swapped off my old alternator, just wanted to make sure I didn't need any sort of spacer under it. Thanks for the link on all the 3G info.
 
You must log in or register to reply here.

Similar threads

6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
3
Views
680
1965 - 1973 Classic Mustangs -General/Talk- Feb 28, 2026
Noobz347
1
Engine Motor swap from a 2003 Explorer
  • 1996mustang new
  • Oct 9, 2025
  • SN95 4.6L Mustang Tech
Replies
7
Views
530
SN95 4.6L Mustang Tech Oct 16, 2025
squeak93
R
Belt size
  • ron2shel
  • Oct 12, 2023
  • 1994 - 1995 Specific Tech
Replies
2
Views
1K
1994 - 1995 Specific Tech Oct 13, 2023
Noobz347
Engine Throwing codes 94, 33, 34, 44, and sporadic engine shutoff.
  • Ryu
  • Oct 9, 2024
  • Fox 5.0 Mustang Tech
Replies
11
Views
841
Fox 5.0 Mustang Tech Oct 16, 2024
89ripper
Engine Trying to remove crankshaft pulley bolts
  • 91GTstroked
  • Sep 7, 2022
  • Fox 5.0 Mustang Tech
Replies
14
Views
2K
Fox 5.0 Mustang Tech Sep 10, 2022
91GTstroked
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?