ARP studs torque specs?
Thread Starter
Joined: Dec 2004
Posts: 699
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From: Redondo Beach, California
ARP studs torque specs? The directions from ARP says to torque the head studs to 65ft, what about the 5 smaller studs on the top row? Ls1howto says 22ft for gm bolts.How much should I torque the top 5 studs to? right now I torqued the top 5 to 25ft and the lower(larger studs) to 65ft.
Bolt torque Depending on what lubricants and sealers you are using, I would torque the larger studs to aleast 70-75ft. and the smaller ones to 25-27ft lbs. I am considering you are using cometic head gaskets. What ever torque come up with or choose, always torque them in 3 steps. Good Luck!
I would call ARP. The torque value is to get a specific pre-load in the bolt so you don't want to be wrong on this. Also, all of their torque values are using their ARP Moly lubricant including under the washer and nuts.
I am assuming you mean the nuts, not the studs too as the studs should only be hand tightened.
I am assuming you mean the nuts, not the studs too as the studs should only be hand tightened.
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Ok I have three different torque specs here.
In my searching I have found these specs:
First set - 50 60 70
Second set - 40 55 65
Now you guys are saying - 30 50 65
I am getting ready to install some 12 pt head studs and I am really lost on what I should be torqueing these things down to.
I was going to do 50 then 60 then 70 - seemed to be the most common atleast.
In my searching I have found these specs:
First set - 50 60 70
Second set - 40 55 65
Now you guys are saying - 30 50 65
I am getting ready to install some 12 pt head studs and I am really lost on what I should be torqueing these things down to.
I was going to do 50 then 60 then 70 - seemed to be the most common atleast.
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Verdad Gallardo I have the actual directions, but they dont say what to take the 3 passes to, only end up at 65 with ARP Lube for Al heads. I used my division to avoid any forgetfullness.
Follow these directions http://www.blackcamaro.com/headstud.htm . This is what I did for both head swaps..
Dan
Dan
the people who built my engine had a bunch of extra ones around. I would go to a local machine shop/engine shop, and see if they had one they would let your have cheap/free.
Originally Posted by Lithium
Anyone know where I can get an extra washer and nut for those 10 smaller studs? Guy I bought mine from did not send a washer/nut for one of those.
