Is my engine toast?
They make a kit made for that it comes with a big drill bit a big tap and sleeves to put in it don't trust a helicoil you should be able to find it on line or see if you can rent one somewhere
The V8 engine from these years is just junk design reagarding blowing out spark plugs (which in some cases can actually destroy the engine).
Don't use a heli, use the better newer quick fixes made by many companies to fix your problem, which will affect most V8's from our years at some point. Just about the most stupid design in an engine I have ever seen.
Don't use a heli, use the better newer quick fixes made by many companies to fix your problem, which will affect most V8's from our years at some point. Just about the most stupid design in an engine I have ever seen.

