I am removing the ARP head studs from a motor, sone of the smaller 8mm studs are stuck. I used the Jegs stud removal tool, it is too big for the small studs though. I tried using vice grips, no go. They are not broached, that would be nice to have at this point. Any ideas?

 

try some penetrant and let it soak in for a while.

 

If you can double nut the studs that should work. Then you can get a wrench on the bottom nut and turn it out like a regular bolt.

 

The answer!

Put 2 nuts on the stud and tighten them towards each other. Then unscrew the stud using the bottom nut.

 

If that doesn't work, then Snap-On makes an excellent stud remover (as long as you haven't buggered the threads). Its a two piece collet setup and you buy the collet for the thread size/pitch you are removing (the exposed part).

 

The double nut trick is good. I did get my Jegs tool to work, it helped to actually slow down and think!