#1  
Old 06-17-2024, 10:12 PM
68WarDog's Avatar
68WarDog 68WarDog is offline
Ultimate Warrior
 
Join Date: Mar 2003
Location: Salisbury,NC--USA--
Posts: 1,363
Default Torque values

Recently bought a 455 with 1st generation Eheads with studs. My plans were to replace the 72cc with 87cc. Plans changed and the buyer wants to keep the 72cc Eheads on the block. I don't recall having the stud nuts torque values, Any help?

  #2  
Old 06-18-2024, 06:29 AM
steve25's Avatar
steve25 steve25 is offline
Ultimate Warrior
 
Join Date: May 2008
Location: Westchester NY
Posts: 15,055
Default

If the heads are still on the motor then what does it matter?

If there ARP studs then go on there site and look up a set of studs listed for aftermarket heads.

Did you get the studs from Butler. KRE, Summit or Jeg’s’s then go on there site or call them to get the needed info.

__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
  #3  
Old 06-18-2024, 11:58 AM
68WarDog's Avatar
68WarDog 68WarDog is offline
Ultimate Warrior
 
Join Date: Mar 2003
Location: Salisbury,NC--USA--
Posts: 1,363
Default

Quote:
Originally Posted by steve25 View Post
If the heads are still on the motor then what does it matter?

If there ARP studs then go on there site and look up a set of studs listed for aftermarket heads.

Did you get the studs from Butler. KRE, Summit or Jegísís then go on there site or call them to get the needed info.
The engine was purchased with the studs already installed. I removed the heads to install another set. ARP/ Elderbrock sites list 75 ftpd. Attempting to verify since I'm not familiar with stud bolts. Past 30+ years always used head bolts, 95-105 ftpd.


Last edited by 68WarDog; 06-18-2024 at 12:04 PM.
  #4  
Old 06-18-2024, 12:20 PM
HWYSTR455's Avatar
HWYSTR455 HWYSTR455 is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Manassas, VA
Posts: 14,899
Default

I just went thru this when I switched to 340cfm E-heads, and the ARP studs are listed by ARP as 110 ftlbs. (with ARP lube).

https://tech.arp-bolts.com/instructions/190-4305.pdf

That's for the 2002-up series heads, the earlier ones had a couple bolts that were a 'medium' length.

Here's the page that lists all the E-head bolts offered:

https://arp-bolts.com/kits/make.php?...EngModelID=298

The bolts (not studs) are listed as 100ftlbs.

.

__________________
.

1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #5  
Old 06-18-2024, 12:28 PM
68WarDog's Avatar
68WarDog 68WarDog is offline
Ultimate Warrior
 
Join Date: Mar 2003
Location: Salisbury,NC--USA--
Posts: 1,363
Thumbs up

[QUOTE=HWYSTR455;6510037]I just went thru this when I switched to 340cfm E-heads, and the ARP studs are listed by ARP as 110 ftlbs.

Got it. Thanks for the information. For 30 years of running first and second generation Eheads, this is my first with studs.

  #6  
Old 06-18-2024, 12:38 PM
HWYSTR455's Avatar
HWYSTR455 HWYSTR455 is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Manassas, VA
Posts: 14,899
Default

Just a suggestion, what I do is install 2 studs and then slide the heads on, then screw in the rest of the studs.

It's easier to get the gasket and head down to the deck that way.


.

__________________
.

1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
The Following User Says Thank You to HWYSTR455 For This Useful Post:
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:53 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017