[Mr Twister]

I got the PPR Ultra Lite Rods and cant remember the torque spec. Anybody know?

[hurryinhoosier62]

If ARP bolts are used, you'll need the rod bolt stretch spec as well.

[steve25]

If they have been torqued up 5 times you should replace the bolts and check for size anyway, some folks do this after only 4 sessions not 5!

[hurryinhoosier62]

Originally Posted by steve25

If they have been torqued up 5 times you should replace the bolts and check for size anyway, some folks do this after only 4 sessions not 5!

Good advice, Steve

[track73]

Well here is what I would do. Ask the rod manufacturer about bolt torque and stretch. Get a bolt stretch guage. They are not that expensive. I also made one so Now I have two. Torque the bolt to what the manufacturer said and if there is a stretch measurement check it with your stretch guage. If it is spot on, torque the rest and check with the guage. You should go on ARP's website and get info on installation techniques.

[Mr Twister]

I googled for an answer. No luck. The rods came with the torque spec, I don't remember what it was. ARP says call the rod maker for an answer but we dont know who made the rods for Ace. So, still hoping someone will have a cut sheet on these.

[Squidward]

Originally Posted by Mr Twister

I googled for an answer. No luck. The rods came with the torque spec, I don't remember what it was. ARP says call the rod maker for an answer but we dont know who made the rods for Ace. So, still hoping someone will have a cut sheet on these.

They should be RPM. That's what the PPR/Tomahawk rods were when I bought some.

[Squidward]

Here's the RPM tech page for conn rods....
http://www.racingpartsmaximum.com/techinstall.html

I did 66 ft lbs in my 350. The rods have the 8740 7/16 bolt cap screws.

[Mr Twister]

Originally Posted by Squidward

Here's the RPM tech page for conn rods....
http://www.racingpartsmaximum.com/techinstall.html

I did 66 ft lbs in my 350. The rods have the 8740 7/16 bolt cap screws.

Thanks!