[SSSammy]

RTS, the headers are certainly steel, I'm referring to the cylinder heads .. the big castings the spark plugs are screwed into. If you have aluminum heads (not painted cast iron), they were not used in the old days, so it will likely be a modern rebuild with good valve seats.

The intake is the big casting that the carburetor is bolted to. If that is aluminum, not painted cast iron, same theory.

Sam