Is this normal?

What I do for broken bolts is weld a little nipple on there, the weld heats it up and gives you something to grab on to with vise grips. I did this to two next to the crossover on a 318, and heed the same technique to remove 3 of 4 bump stop bolts on rear of my 67 notch. Oh yea, also a 65 833 filler plug