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Jun 4, 2008 | 06:37 AM

JDC

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Launching!

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From: Ontario,Canada

Arp

Are the ARP head bolts reusable

Jun 4, 2008 | 06:59 AM

aNuBiS

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From: Canada

Most definitely

Jun 4, 2008 | 12:21 PM

zman1969

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From: Dallas Tx

Arp

I bought used ARPs for this reason too so what is the torque procedure when thay arent TTY bolts? not to hijack but i feel its a good related question

Jun 4, 2008 | 12:23 PM

aNuBiS

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I think it may depend on if they are bolts, or studs with nuts, and I would bet you could possibly find the info on ARP's site? Or worse case doing a general search on here.

www.ls1howto.com in the head swap part should maybe give you some direction.

Jun 4, 2008 | 12:25 PM

99blancoSS

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From: ST Helens, OR

^^^ I've used/use the studs and they are re-usable.

The bolt number is 134-3609 for 2003 and earlier and 134-3610 for 2004 and later

Last edited by 99blancoSS; Jun 4, 2008 at 12:31 PM.

Jun 4, 2008 | 12:34 PM

99blancoSS

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From: ST Helens, OR

Just got off the phone with ARP so more guesses... drum roll please..... YES they are re-usable same as the studs.

Jun 4, 2008 | 05:25 PM

JDC

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Launching!

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From: Ontario,Canada

I would think you would torque them the same as stock bolts eccept you can use them again because they dont strech.

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Jun 4, 2008 | 08:06 PM

smask04C5

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From: Winter Haven, Fl.

I used torque values recommended by ARP. Head studs were 45, 55 and 65 with supplied ARP moly. I just got a set of ARP main studs 234-5608 for a stroker build and supplied instructions recommend 60 inner, 50 outer and 20 for the horizontal bolts, using the supplied moly. If tightened dry, unplated fasteners consume about 80% of the applied torque just to overcome the thread friction.