I broke an exhaust manifold on my '71 5500 with a 350. It's the center dump style that curves up and then down from each end into the outlet. I haven;t checked on a new one yet. This one is probably weldable but it will be hell being so old and cooked so long. Shouldn't really say broke,, it split all by itself, thought I had a donut going bad until I saw the crack. If anyone ahs one they want to part with I'm interested.