Ticking 2007 5.7 Hemi

There are shorty headers that stop it from popping the studs. They are direct bolt in stainless steel. I had to replace the studs twice and finally had enough and went with the headers. Problem solved. If you do the job I would not try and drill the bolts for an easy out. There is water pretty close. I would borrow a welder or have someone weld a nut on the broken stud. Then slowly turn them out.
I use my mig, and tack weld a nub big enough to grab with vise grips. After attempting to weld nuts on numerous times, the nub is faster. And more heat gets into stud.