hole in cylinder head

[cwhubb]

 question... will devcon work on filling a tiny hole in a cylinder head? its through  the water jacket (from the top 5/32 size) so i dont think heat should be a problem, how about jb weld with the steel in it, original formula

[cudaken]

First welcome to the site!

My self, either have it welded up, or replace the head. Welding cast iron is not cheap.

Picture would help a lot.

         Cuda Ken

[cwhubb]

I'm going to drill and tap it then use a plug

[70sixpkrt]

I tried drilling out a broken valve cover stud when I was using iron heads.  Went a little too far and went into the water jacket. All I did was put a little silicone at the end of the bolt and all was good.

[cwhubb]

  I plugged it and it looks good, I have the same problem with a broken off valve cover bolt so I'll keep the silicon tip in mind thanks