JDC

iTrader: (3)

Are the ARP head bolts reusable

aNuBiS

iTrader: (25)

Most definitely

zman1969

iTrader: (91)

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

aNuBiS

iTrader: (25)

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.

99blancoSS

iTrader: (115)

^^^ 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

99blancoSS

iTrader: (115)

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

JDC

iTrader: (3)

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

99blancoSS

iTrader: (115)

No they have specific torque points! The OEM are TTY, you stretch them when you install them.

smask04C5

iTrader: (1)

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.