FYI

Factory shop manual says to torque head bolts to 85 ft. lbs.
ARP bolt co. says to torque them to 70 ft. lbs.
Phoned ARP and they said to follow Olds tightening sequence but torque to 70.
joepenoso
joepenoso

 

You should always follow the instructions of the manufacturer of the fasteners. The proper torque depends on the design and material of the fastener and on the lube you use (again, follow their instructions for lube).

 

Yes, ARP torques are for ARP lube ONLY.

- Eric

 

Required torque specs actually go up on ARP bolts and studs if you use anything but their lube. EI: oil, moly, etc.

 

Thanks
I used 70 ft. lbs. and their lube that came with the bolts.
joepenoso

 

On the other hand maybe I will up the torque................................

http://realoldspower.prophpbb.com/topic812.html


especially read the last 3 postings
joepenoso