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Looking for torque specs...

  • Thread starter Thread starter TC93
  • Start date Start date Oct 18, 2006

TC93

Well-Known Member
Sep 11, 2000
2,075
1
57
Ellerslie GA 31807
Oct 18, 2006
#1
  • Oct 18, 2006
  • #1
Anyone now the torque specs for 1/2" ARP head bolts for a 302? Popped a head gasket on a nicley built 302 that has been modified for 1/2" ARP head bolts and I don't have the build sheet or orignal ARP sheet for the head bolts.

Anyone have torque specs for the 1/2' head bolts from ARP??


Here is the project car.....


 
K

krallman

New Member
Mar 3, 2006
96
0
0
Hurricane, WV
Oct 18, 2006
#2
  • Oct 18, 2006
  • #2
use google it is your friend.. you can find anything
 

dragnazz5.0

My "0" key d0esn't w0rk, s0 I have t0 use the zer0
Nov 19, 2005
815
5
18
mooresville, nc
Oct 18, 2006
#3
  • Oct 18, 2006
  • #3
i hate you, thats an awesome looking car. why 1/2" head bolts? using 351 heads? i would think the torque specs were the same as a regular bolt. you could always call up arp...they will tell you exactly what to do
 

JimBowy

Member
Nov 8, 2003
330
0
17
Downriver, Mi
Oct 18, 2006
#4
  • Oct 18, 2006
  • #4
Call ARP/Head Manufacturer
 
M

MatthewP

Founding Member
Dec 7, 2001
355
0
0
Calgary, Alberta
Oct 18, 2006
#5
  • Oct 18, 2006
  • #5
All I have is the 1/2" ARP stud torque specs:

90 ft-lbs with ARP Moly
130 ft-lbs with 30 wt oil
85 ft-lbs with ARP Moly on aluminum heads

BTW: I'm pretty sure the torque spec is higher with the 1/2 fasteners than the 7/16" fasteners.

Good luck.

-Matthew
 

RsStanG1987

I shaved all my pubes playing this game.
10 Year Member
Mar 13, 2004
569
9
79
Dupont PA
Oct 18, 2006
#6
  • Oct 18, 2006
  • #6
Myke did you finish your notch yet? Pm me with some pics. We are still working on my 84 t-top body work sucks.
 

TC93

Well-Known Member
Sep 11, 2000
2,075
1
57
Ellerslie GA 31807
Oct 19, 2006
#7
  • Oct 19, 2006
  • #7
RsStanG1987 said:
Myke did you finish your notch yet? Pm me with some pics. We are still working on my 84 t-top body work sucks.
Click to expand...


Haven't finished it yet. Everytime I get started, another project comes along. Well, another profit project that is, compared to mine, which cost me $$$. Plus having the hardest time finding a set of fenders for some reason. And that combined with being the taxi for my kids and thier activities, time is limited. But did finish smoothing one apron and started welding on the other. Once this Cobra is done I will get back to my car. I want to have it in the paint booth by Jan though.



back to the topic,,,

Gemini racing built the car back in the day and it was built using 1/2" head bolts. Checked ARP's web site but it isn't really helpful when looking for torque specs. Did a google search, and came up with 100ft #'s.., but want to make sure. 100ft #'s just seems high for the 302 block to me, since 1/2" bolts were for 351. Just wanted to verify if torque specs were the same wether the 1/2" bolts were on a 302 or 351..
 
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