All four exhaust studs on my (new to me) '81 G5 heads are rusted and cannot be easily removed, as is the only remaining stud on the inlet side (if these were studs in the first place, as I found two sizes of bolts and a helicoil when removing the Carbs. Most of the bolts I removed seemed smalled diameter than the remaining, rusted, inlet stud). In any event, liquid wrench and time didn't help much, and I'm concerned about damage to the heads by forcing them out.
I would plan to remove the studs by cutting them off close to the head, drill out as much of the bolt as I can without undue risk, the use an easyout. I presume this is fairly standard practice?
Going back, I guess I could have a shop drill them out a bit and install helicoils to get back to the normal diamter, or stay with smaller bolts. Your thoughts are most welcome....
I would plan to remove the studs by cutting them off close to the head, drill out as much of the bolt as I can without undue risk, the use an easyout. I presume this is fairly standard practice?
Going back, I guess I could have a shop drill them out a bit and install helicoils to get back to the normal diamter, or stay with smaller bolts. Your thoughts are most welcome....