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Installing Arp Rod Bolts

r32r32

By r32r32,
in Engines & Forced Induction

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Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
Then they are correct. I would almost go from 'recommended' to 'required'.

yes all 2nd hand rods should be at the very minimum closed and honed after new bolts are fitted to ensure big ends are perfectly round and haven't distorted from previous service or the bolt removal and fitting process.

Edited by DiRTgarage
The Dan Grand Master

The Dan

Posted
Posted
yes all 2nd hand rods should be at the very minimum closed and honed after new bolts are fitted to ensure big ends are perfectly round and haven't distorted from previous service or the bolt removal and fitting process.

Just to add to that

Also because the new torque required by the ARP bolt can distort the bigend tunnel.

Anywhere from 0.001 to 0.003 difference can be found just by torquing them down to the new figure.

r32r32 Enthusiast

r32r32

Posted
  • Author
Posted
Just to add to that

Also because the new torque required by the ARP bolt can distort the bigend tunnel.

Anywhere from 0.001 to 0.003 difference can be found just by torquing them down to the new figure.

Thanks guys!

How much is it to get them installed?

darren lewis Apprentice

darren lewis

Posted
Posted
Thanks guys!

How much is it to get them installed?

fit the bolts torque to rec arp tension, measure the tunnel with an inside dial bore guage. if you dont have one a rep shop should measure them and charge zip. sometimes you can pull it off and dont need to close and hone. we always check it that way first, if they are not round in the tunnels from there they will have to be closed and resized. usual cost $30 per rod to resize. basic stuff!!!!!1

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