The ARP tq spec is with recommended ARP lube.

The Mopar TQ spec is for clean and dry threads(as I recall...... no mention of bolt lube at all).
I used a couple of drops of 10/30 oil on the original studs/nuts...... and several of them wouldn’t torque up(the tq wrench never clicked..... the studs yielded).

The net fastener stretch is going to be a fair amount different between 100lbs with a couple of drops of oil vs 110lbs with the ARP lube(if the same fastener was used with both lubes)....... and I def don’t want to under torque the main studs 10ft/lbs, and not provide the correct fastener stretch/load.

As an example of the tq value difference between oil vs ARP lube...... from back when the instruction sheets came with specs for oil or ARP lube....... a 180,000psi 1/2” head bolt had a tq spec of 95lbs with ARP lube....... and 130lbs with 30w oil(35lbs extra to theoretically achieve the same stretch).


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads