• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

crank pulley bolts

  • Thread starter Thread starter grippper
  • Start date Start date Jul 24, 2004

grippper

New Member
Mar 4, 2003
494
0
0
Jul 24, 2004
#1
  • Jul 24, 2004
  • #1
i installed a professional products balancer with a spacer and now the bolts that hold the pulley on are to short.where can i get some bolts. does adding longer bolts make the balancer off.the stock bolts also have a weird kind of head on them.
 

grippper

New Member
Mar 4, 2003
494
0
0
Jul 25, 2004
#2
  • Jul 25, 2004
  • #2
bump. im stuck at this point. untill i find out if longer bolts will throw off the balancer, or can i just go to the hardwarestore and get longer ones.
 

04sleeper

Founding Member
Jun 22, 2002
2,674
14
89
Dallas, TX
Jul 25, 2004
#3
  • Jul 25, 2004
  • #3
grippper said:
bump. im stuck at this point. untill i find out if longer bolts will throw off the balancer, or can i just go to the hardwarestore and get longer ones.
Click to expand...
Longer blots will not throw off the balancer. You can use header bolts if you have some laying around. The small head makes them ideal for any pulley size.
 
D

Daggar

New Member
Jul 19, 2004
3,902
5
0
Jul 25, 2004
#4
  • Jul 25, 2004
  • #4
I wasn't going to throw my 2 cents in because I couldn't remember how the numbers worked for bolt hardness. i think it's important though so I'll just say this... Make sure you use hardened bolts. You don't want common hardware stuffed into holes used to hold your balancer on.

(If I'm remembering it correctly you need bolts that have a hardness of 10 or 12. But like I said I'm not sure I remember it correctly. Just ensure you used hardened bolts.)
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
Jul 25, 2004
#5
  • Jul 25, 2004
  • #5
I just used normal bolts fomr Home Depot on mine since I couldn't find the stock bolts when i put my stock pulley back in.

I still have all my accessories, and they all work including a/c. I also have a supercharger. I've no problems with the bolts at all....
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 25, 2004
#6
  • Jul 25, 2004
  • #6
Daggar said:
You don't want common hardware stuffed into holes used to hold your balancer on.
Click to expand...

while very good advice, remember the balancer is held on with one bolt (crank bolt). the 4 little bolts only secure the pulley to the balancer. while important, i personally dont feel it is as important as the crank bolt (IIRC the torque spec on the pulley bolts is not much, giving an indication of what kind of clamping force is required of the fastener).

a lot of guys use home store allen head bolts for U/D pulleys, and they seem to be alright. looks like Chris took the same approach and he knows a thing or two about wrenching.
 
D

Daggar

New Member
Jul 19, 2004
3,902
5
0
Jul 25, 2004
#7
  • Jul 25, 2004
  • #7
HISSIN50 said:
a lot of guys use home store allen head bolts for U/D pulleys, and they seem to be alright. looks like Chris took the same approach and he knows a thing or two about wrenching.
Click to expand...

You're right Hiss... again I misread and had "balancer" in mind and not pulley.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 25, 2004
#8
  • Jul 25, 2004
  • #8
Daggar said:
You're right Hiss... again I misread and had "balancer" in mind and not pulley.
Click to expand...
i figured as much - you've got good stuff to say. dont feel bad - i tend to read the original posts before opening the window (hold the cursor over the thread). the other day i opened 2 carb question threads at the same sitting. i did not re-read the first thread and posted the most horrible, incorrect answer you could imagine (it would have been a good answer for the 'other' carb thread). made me feel like a dummy. Michael overlooked my response and was nice enough not to call me on a horrible post. i did figure it out and explain.
point being, happens to all of us.

PS, Daggar, i just re-read what i posted above, and i think it could be taken the wrong way. when i said that Chris knows what is up, it was in no way saying you dont (i was not sure if you took it that way - i never even realized it read like that till now). but Chris does have a sweet car with severe mods, and i trust what he says - that was my point. it was in no way directed at you. sorry about that
 
D

Daggar

New Member
Jul 19, 2004
3,902
5
0
Jul 25, 2004
#9
  • Jul 25, 2004
  • #9
HISSIN50 said:
PS, Daggar, i just re-read what i posted above, and i think it could be taken the wrong way. when i said that Chris knows what is up, it was in no way saying you dont (i was not sure if you took it that way - i never even realized it read like that till now). but Chris does have a sweet car with severe mods, and i trust what he says - that was my point. it was in no way directed at you. sorry about that
Click to expand...

Nah, I didn't take it that way. I try to read between the lines in forums because so much can be mistaken in this kind of environment. Your reply did make me go back and re-read though. For me, that's what it's all about. There are things that I 'know' to be correct and just as often there are things that I have misconceptions about. Reading peoples replies helps to get things straight. I know that there are a great many folks that know a lot more about many things that I do. That's why I'm here.
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
Jul 25, 2004
#10
  • Jul 25, 2004
  • #10
I didn't see any grade 8 bolts when I was shopping for them. I also needed longer bolts since my Vortech pulley mounts inside the stock one. I figured how much force is put on that pulley? Bolts are pretty strong alone, but x4, that would require a tremendous amount of force to spin the pulley off the balancer and snapping the bolts, don't you think..... thats just my opinion. Get at least grade 8 bolts if you want to be positively safe.....

Hissin, I'm a little flattered. Thanks
 
You must log in or register to reply here.

Similar threads

A
Discussion on mild budget build/ top end
  • Acesario
  • Feb 21, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
20
Views
696
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 23, 2026
General karthief
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
4
Views
788
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
For Sale Vortech crank and blower pulleys
  • Dontknowchit
  • Sep 25, 2025
  • Engine and Power Adder
Replies
2
Views
287
Engine and Power Adder Oct 15, 2025
Dontknowchit
Electrical 88 EEC Injectors batch firing ?
  • Dustin 86GT
  • Dec 8, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
412
Fox 5.0 Mustang Tech Jan 8, 2026
gkomo
Drivetrain 83’ Glx convertible C5 Trans help!
  • JacksonJared2113
  • Dec 25, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
369
Fox 5.0 Mustang Tech Dec 26, 2025
JacksonJared2113
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang 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?