Looking through my extra stuff I found a used set of 11mm ARP head studs. I called ARP and the specs are: 4.65in long, 7/16x20 top, 11x1.5mm bottom, torque to 80ft.lbs. (ARP 1-800-826-3045) As you can see the one was grabbed with vice grips to get it out. A few of them have a little rust, the worst one being pictured. I can buff this out with a wire wheel if you like before shipping. Included is a new packet of their special torque lube. $75.00
-JB