Snapped exhaust studs and other fun issues

[returning rider]

cheers have seen induction heaters they are very useful but in this application they will case harden the stud and not directly heat the cylinder head.


I am mechanical engineer to trade so no issue there but looking at no way in hell can drill out in place access fouls direct line if sight ie drill perfectly flat. Main issue is lack of space and workshop tooling and equipment ie oxyacetylene.


Few other things to try but looks like engine out if they don't work.


baffles my why use mild steel in alloy head with tiny m6 threads