Double-checking torque specs
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Pro
Joined: Mar 2005
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From: James Island South Carolina
Double-checking torque specs
I'm finishing the pre-fitting of my 383 today and I just want to run something by anyone who has a minute: I get a different torque spec from everyone I talk to on tech lines especially due to different types of lube.
I have ARP main bolts (#134-5202) and ARP rod bolts/nuts(not the wave-locks) and the torque specs I got from the ARP tech rep is: 70lbs inner and outer for the mains using ARP assembly lube and 50lbs for the rod bolts using ARP assembly lube.
This differs from what I see on the back of the ARP packaging, but I have been torquing them to the specs I got from ARP via phone.
Is there any margin to play with here and does this sound right to you? The phone advice for torque seems to exceed what I read elsewhere.
Just double-checking and thanks for any advice.
I have ARP main bolts (#134-5202) and ARP rod bolts/nuts(not the wave-locks) and the torque specs I got from the ARP tech rep is: 70lbs inner and outer for the mains using ARP assembly lube and 50lbs for the rod bolts using ARP assembly lube.
This differs from what I see on the back of the ARP packaging, but I have been torquing them to the specs I got from ARP via phone.
Is there any margin to play with here and does this sound right to you? The phone advice for torque seems to exceed what I read elsewhere.
Just double-checking and thanks for any advice.
Last edited by surfshark; Oct 14, 2006 at 02:44 PM.
Senior Member since 1492
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
I used the instructions for the rod bolts. 50lb. engine shop made a point to remind me of the same too. 
Can't help with the mains since I've got a bb.
Can't help with the mains since I've got a bb.
Thread Starter
Pro
Joined: Mar 2005
Posts: 559
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From: James Island South Carolina
Thanks for the info. I think I'm fine using the ARP specs via phone tech. So far everything is going well. I'm getting .008 - .009 side clearance on the steel rods so I think that's okay. I'm getting ready to cc the cylinder now to calculate static compression.
Melting Slicks
Joined: Aug 2003
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From: Dayton Oh
Originally Posted by surfshark
I get a different torque spec from everyone I talk to on tech lines especially due to different types of lube. .
