Overtorquing Head Studs?

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Aug 8, 2012 | 03:04 PM

#21

9sectruck

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From: jefferson city MO

^^^ 8740 are fine, just dont get stupid with timing thats generally what lift heads,

Aug 8, 2012 | 03:15 PM

#22

68 SS

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From: Tennessee

Quote:

Originally Posted by 9sectruck

anybody have a part number?price for the 1/2 head studs?

I got mine from AES when they machined my LSX block for the 1/2" studs. Don't quote me but I think the studs were around 550.00 for the set.

Aug 8, 2012 | 06:27 PM

#23

Cronic_Moronic

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From: Cincinnati OH

Quote:

Originally Posted by Burken01

So if I was going to run 317 heads on a ls1 block and plan to run boost up to 17-18 psi, you think my 8740 arp head studs will suffice?

I don't want to lift heads..

Opinions?

Denmah was running around on 22lbs of boost with standard arp head bolts and not lifting heads. From what I'm reading turbo cars are all in the tune.

Aug 8, 2012 | 06:47 PM

#24

alexcoreas

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And I thought these were expensive http://pages.ebay.com/link/?nav=item...d=380394108107

Will these be ok for 15lbs on a 02 4.8 bw s475?

Aug 8, 2012 | 06:49 PM

#25

Old Geezer

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From: GA, USA

Yep...

Quote:

Originally Posted by Reckless

We use 100 max on our 1/2-inch head studs. Anything beyond that and you risk crushing the aluminum on the heads. We usually end up around 90 on the 11mm ARP stuff.

Have seen it on turbo Buick aftermkt heads...The support columns that the studs are in collapse...

Aug 8, 2012 | 08:44 PM

#26

I8UR4RD

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From: Bama

Quote:

Originally Posted by 68 SS

I got mine from AES when they machined my LSX block for the 1/2" studs. Don't quote me but I think the studs were around 550.00 for the set.

yeah thats the price.

Aug 9, 2012 | 09:04 AM

#27

Reckless

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From: Canton, GA

There are better deals out there

Aug 9, 2012 | 09:50 AM

#28

mike13

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From: Lake Tapps, WA

I would talk with Kurt Urban performance they have experience with 1/2" head studs and also have them in their online store. I think I have mine torqued to 105ft lb's but I also have 3/4" thick decks