sbc head studs

William Jones · Posted: Sun Mar 16, 2014 7:17 pm Post subject: sbc head studs

Does anybody know the arp head stud torque value for sbc. Im doing a refresh and can't find my notes from when I built 6 yrs ago.

Bam

clay · Posted: Sun Mar 16, 2014 7:31 pm Post subject:

The info I have from arp says 70 lbs with arp moly lube and 85 lbs with 30 wt oil. It also says due to the expansion rate of aluminum torque should be 65 lbs with arp moly lube. I'll take a pic of it and send it to you if you want. Clay

William Jones · Posted: Sun Mar 16, 2014 8:08 pm Post subject:

Thanks I thought it was 65 with the arp ultra torque lube.
My email is REMOVED EMAIL ADDRESS if you will send I can add it to my notes thanks.

Bam

clay · Posted: Sun Mar 16, 2014 9:16 pm Post subject:

I sent a copy. I scaled the image so the file wasn't so large. Lete know if you need the full size image as I don't know if it'll get too blurry if you blow it up. Clay

William Jones · Posted: Mon Mar 17, 2014 10:48 am Post subject:

I never got the email Clay wondering if my email is not working or yours.

Bam

Paul P · Posted: Mon Mar 17, 2014 11:00 am Post subject:

Snug, 30 and final 65ft/lb with ARP moly is what i used for the 408. Should be good to go.

William Jones · Posted: Mon Mar 17, 2014 2:40 pm Post subject:

Thanks guys I found Clay's email in my spam folder.

Bam

clay · Posted: Mon Mar 17, 2014 5:38 pm Post subject:

Too late - you've got another copy coming. I sent the first one from home and my service sucks so I thought that might have been it. Anyway glad you got it. Clay

Big Dave · Posted: Tue Mar 18, 2014 10:26 am Post subject:

According to ARP they state that SBC head studs are torqued to 80 ft/lbs with the ARP lube supplied in the kit. That is according to their web site. I thought for some strange reason we were talking about rocker arm screw in studs; which are torqued to 70 ft/lbs on the BBC, and since both use the same size 7/16th inch base I assume the same value for the SBC.

Big Dave

William Jones · Posted: Tue Mar 18, 2014 10:43 am Post subject:

I finished it up and got it running sounds pretty good she should be back to running 6.50s this weekend we got our 2nd points race on Saturday tnt on Friday.

Bam

Paul P · Posted: Tue Mar 18, 2014 4:38 pm Post subject:

80? this means I have to re torque? I'll have to check the box. I think the instructions were in there. I know I followed them. Just thought it was 65... Head Bang

Big Dave · Posted: Wed Mar 19, 2014 11:04 am Post subject:

You always retorque after it has been running for a bit and gone through a few heat cycles.

Here is a link to the instruction sheet if you can not find yours.

http://arpinstructions.com/instructions/134-4001.pdf

Big Dave

clay · Posted: Wed Mar 19, 2014 6:39 pm Post subject:

I gave up on the after running retorque a few years ago. I'll retorque it 2 times over a few days while I'm assembling it then I'm done. Now with mls or steel shim gaskets once and done. I just can't see what there is to crush or relax like a composite gasket. Clay

af2 · Posted: Wed Mar 19, 2014 8:45 pm Post subject:

Paul P · Posted: Thu Mar 20, 2014 11:04 am Post subject: