ARP PITA

[CFD244]

Hi Folks

Finally got the 340 and the 727 mated for the first time in 30 years. New Hays flexplate and TCI converter. Got everything torqued to OEM spec with blue loctite.....Then found the ARP instructions which said 75lbs not 55......Finally got them mated for the second time in 30 years an hour later.

 

[Car Nut]

Well done, you know what they say. If at first you don't succeed, try, try again.

 

[4spdragtop]

Doesn't 55 with Blue= 75?

 

[Oldmanmopar]

Doesn't 55 with Blue= 75?

It all depends on the wind chill factor.

 

[A56]

At least it wasn't the other way around.

 

[jos51700]

I just want to say Bravo to you, OP, for looking up the specs. So many 'mechanics' these days can't/won't do that, and that's the hallmark of a conscientious worker.

 

[Garrett Ellison]

Had a similar situation with a three speed manual behind a 361 in a Plymouth lately. Found all the bell housing bolts were loose, and some were only finger tight… Luckily, there’s enough room that with enough finagling I could run a tap down all the holes and clean them out before final torquing everything back down to spec again with new hardware.

 

[CFD244]

Doesn't 55 with Blue= 75?

It's got to do with bolt stretch......From what I understand. The ARP are stronger and take more torque to stretch or at least that's the premise.

 

[mbaird]

Fastener torque is determined by material , diameter and thread pitch .

 

[Bewy]

You have to 'check' ARP bolts. Had some that were too long; had flywheel bolts where the bolt head was too thick.