I might try my hand at welding a 1955 cast iron exhaust manifold. The PO somehow broke the flange off of the output side.
Must be a common problem. I have one here with the same missing flange ear. Around 1979 or 1980 I saw a fellow fix one with what looked like a 3/4 inch wide piece of 1/4" thick angle iron. He drilled matching holes in one side of the L and the manifold but not all the way through, threaded those holes in the manifold, letting the bottom of the L sit on the little ledge left when the ear had broken off, attached the piece with short screws, drilled and threaded the angle iron for his stud and rounded off the end to look more like the original. Can't be certain, but I'd guess he used 1/4" screws. The way it sat and the way he had shaped it the fix looked ok and he said it worked just fine. Just an alternate thought.
