ARP Main Studs... Torque to Yield, or Torque to Spec?
12-18-2005, 02:05 PM
#1
ARP Main Studs... Torque to Yield, or Torque to Spec? I am trying to figure out the proper way to torque the ARP main studs. I have read about people who use 15 lb-ft + 80 degress on the inside bolts, 15 lb-ft + 53 degrees on the outside bolts, and then someone said they are 60 lb-ft on the inners and 50 lb-ft on the outers. I don't have instructions for mine, so does anyone know? I figure it would be different than the stock TTY specs.
12-18-2005, 03:39 PM
#2
TECH Resident
The recommended torque from ARP is 60 lb with Moly lube for ALL main cap studs. Forget about that 80 degree stuff. I have had my motor apart several times and 60 w/moly seems to work great. The outside block bolts are the stock GM bolts that are 18 lbs, they have some kind of a sealer/loctite under the head. When checking main bearing clearances, torque all, including the outside 18 lb, it makes a difference.
12-18-2005, 03:44 PM
#3
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Originally Posted by Ferocity02
I am trying to figure out the proper way to torque the ARP main studs. I have read about people who use 15 lb-ft + 80 degress on the inside bolts, 15 lb-ft + 53 degrees on the outside bolts, and then someone said they are 60 lb-ft on the inners and 50 lb-ft on the outers. I don't have instructions for mine, so does anyone know? I figure it would be different than the stock TTY specs.
Here
The main caps are torqued down to 60 ft-lb on the inside and 50 ft-lb on the outside.
Long stud less tq...
