ARP Main Studs / 420a Question

[TJBrown]

I am taking my block (a 420a) to the machine shop tomorrow to start my rebuild project. I have decided to go with ARP fasteners pretty much all the way through. The question is, my shop manual instructs 55lbs on the inners and 21 on the outer bolts (of coarse this is OEM Bolts) but the instructions that came with the ARP studs says 75 with ARP moly. Are all the studs (inner and outer studs) to be torqued to 75lbs? Just wanting to make sure on this so the machine shop gets my line hone correct.

Thanks in advance.

 

[hereitcomes]

You should torque ARP studs in stages. I did 35, 55, 75, 95 on mine. No problems. I have all ARP hardware as well.

 

[TJBrown]

Called ARP and this is the specs that they gave me.

This is for "STUDS" and using "ARP Moly"

Inner Studs (11mm) Hand Tight and then 3 step to 70 foot lbs

Outer Studs (8mm) Hand Tight and 3 Step to 22 foot lbs

The order goes the same as the Shop Manual