Loctite HL235579 Fixmaster 2000 Putty, 8 oz.

I fixed a pitted exhaust manifold / 460 engine head port on a 1976 Ford pickup with this stuff. I'm hoping this fix will hold until the engine gives me enough cause to rebuild it at which time I'll have all the surfaces machined or replace them but it's running well and no more exhaust in the engine compartment! Until then, I have no reason to think this stuff won't hold up, from what I've seen to this point, it's truly amazing stuff!

This is not worth the money in weld is better