ARP head stud install
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Team Owner
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From: At the beach in little Rhody
I disagree with this write-up. You are going to squeeze the gaskets multiple times. I spoke to ARP about this and they told me the pre-torque five times is for rod bolts, not for head studs/bolts. I plan to use the standard torque sequence and step from 20 to 40 to 70 lb-ft on the larger studs and 23 lb-ft on the small ones. The torque values on the pink sheet is not correct. Best to call ARP tech support.
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Originally Posted by vettenuts
I disagree with this write-up. You are going to squeeze the gaskets multiple times. I spoke to ARP about this and they told me the pre-torque five times is for rod bolts, not for head studs/bolts. I plan to use the standard torque sequence and step from 20 to 40 to 70 lb-ft on the larger studs and 23 lb-ft on the small ones. The torque values on the pink sheet is not correct. Best to call ARP tech support.
Instructor
Joined: Feb 2003
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From: Meford MA
Originally Posted by 03 ZO6
I have never installed studs myself, but I found that on LS1tech so I thought that I would post it up. I'm with you about not pre torqueing the studs. I thought that this was weird because I never did anything like that with my ARB head bolts but then again I have never installed studs. Thanks for the info.
-Dave
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From: barrie ontario
The instructions say to install the studs hand tight into the block.
I used a little oil instead of the moly lube because the tube is small and didn't want to run out.
I will use the moly lube on the upper portion of the threads and both sides of the washers.
There is no mention of pre stretching in the instructions....
Now I am really
I used a little oil instead of the moly lube because the tube is small and didn't want to run out.
I will use the moly lube on the upper portion of the threads and both sides of the washers.
There is no mention of pre stretching in the instructions....
Now I am really
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From: barrie ontario
Originally Posted by vettenuts
I disagree with this write-up. You are going to squeeze the gaskets multiple times. I spoke to ARP about this and they told me the pre-torque five times is for rod bolts, not for head studs/bolts. I plan to use the standard torque sequence and step from 20 to 40 to 70 lb-ft on the larger studs and 23 lb-ft on the small ones. The torque values on the pink sheet is not correct. Best to call ARP tech support.
My pink sheet does say 65 ft/lbs with aluminum.
No need to re-torque.
Instructor
Joined: Feb 2003
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From: Meford MA
Originally Posted by molson
Just spoke to "Al" @ ARP....vettenuts is correct.
My pink sheet does say 65 ft/lbs with aluminum.
No need to re-torque.
My pink sheet does say 65 ft/lbs with aluminum.
No need to re-torque.
If you skip the pre-stretch I would at least go over them several times at the final reading (65 ft-lbs) until you get no give at all.
-Dave
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