4AGE cylinder head plug removal

[Ivan141]

I'm pretty convinced that heat is what does the trick from some internet research on the subject. There is thread sealant on the little plugs from the factory, plus they are BSPT pipe thread, so they can get pretty stuck.I intend to heat the plugs with a torch and see if that does the trick. The one that I already buggered a little can have a torx hammered in.
If that doesnt help then it's time to weld stuff to them.