Sorry everyone ~

I thought I had sent the first one but guess not here we go again 3rd
time a charm right :)

Ok I have a 94 Subaru Legacy SW. My #4 spark plug hole needs to be
rethreaded. We've tried the epoxy crap and it didn't work. So is this
something I could do myself with a tap and die? Or do I have to take
the head into a machine shop and have it done?

I need the most inexpensive way possible. But I do want it done right
so no more problems.

Any and all suggestions are greatly appreciated.

Thank you everyone :)