Torque spec for ARP rod bolts

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Nov 19, 2007 | 06:31 AM

BlackScreaminMachine

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From: Wallingford CT

Torque spec for ARP rod bolts

Hey guys.

I just spent 5 hours refreshening my Forged 383 short block, which btw will be up sale soon.

I got everything else completed. I put the rod caps on and lightly snugged them, but I was using my LT1 rebuild book which gives factory torque specs. like 25 ft lbs and then 55 deg. Which is for torque to yield....

So anyways whats the torque spec for the rod bolts. if it helps (not that it should matter) its a ARP rod bolt, Eagle H beam rods on a 4340 Chromeonly steel crank. My original build sheet didnt include torque specs.

Thanks!

Any questions on the motor (serious buyer inquire only pls), PM me.

Nov 19, 2007 | 06:37 AM

thecorrectformula

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From: Delaware, OH

You should be able to give ARP a call and they should be able to tell you.

Nov 19, 2007 | 07:00 AM

BlackScreaminMachine

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From: Wallingford CT

Yea I may do that, its just so busy at work, often I cant get a chance to call, sad eh lol.

thanks for the suggestion

Nov 19, 2007 | 08:43 AM

BlackScreaminMachine

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From: Wallingford CT

I did find a FAQ on their site....

http://www.arp-bolts.com/Tech/TechTorque.html

I just need to look at the bolt, the part # i was 99.9999999% sure it was on the top of the bolt, as long as it matches then I think I am in biz, otherwise I gotta call.

Nov 19, 2007 | 10:50 AM

Ari G

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From: Houston

Tq them 4times befor making your final tourqe

should be with your bolt package

Nov 19, 2007 | 11:19 AM

BlackScreaminMachine

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From: Wallingford CT

Quote:

Originally Posted by Ari G

Tq them 4times befor making your final tourqe

should be with your bolt package

Umm thanks for the help, but this is a rebuild of my motor that was made by Nu-tek Motorsports in 2003, no longer in biz so I dont have the original packaging.

Nov 19, 2007 | 05:01 PM

FASTFATBOY

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From: Mobile Ala

This should help

Subject: Eagle H Beam Connecting Rod Torque Specs

Torque Specs:

7/16" ARP 8740 Rods Bolts - 7/16" Bolt Head - 63 ft. pounds or .0059" - .0063" Bolt Stretch

7/16" ARP 2000 Rods Bolts - 7/16" Bolt Head - 75 ft. pounds or .0064" - .0068" Bolt Stretch

7/16" ARP L-19 Rods Bolts - 1/2" Bolt Head - 79 ft. pounds or .0073" - .0077" Bolt Stretch

3/8" ARP 2000 Rods Bolts - 7/16" Bolt Head - 43 ft. pounds or .0055" - .0059" Bolt Stretch

5/16"" ARP 2000 Rods Bolts - 3/8" Bolt Head - 28 ft. pounds or .0048" - .0052" Bolt Stretch

D