Re: Removing A.I.R. tube fittings from manifolds?
 

One of the keys is to heat the manifold evenly until it is red hot. Two people makes the job easier. And then see if you are able to get a bite on any remaining piece of the fitting.

Otherwise as Keith mentioned an EDM machine in the right hands will make short work of removing the fittings and leaving the threads intact.

Elon

Re: Removing A.I.R. tube fittings from manifolds?
 

Looks like a couple of these are going to have to be drilled out and retapped. Can anyone provide the correct AIR fitting thread size for a 1968 350 smog manifold?

Re: Removing A.I.R. tube fittings from manifolds?
 

1/4 straight pipe thread.Not taper pipe.Jeff