I purchased a 1952 GMC Intake/Exhaust manifold on eBay. It was advertised as a 1952 GMC 228 intake and exhaust system. While the exhaust shares the same p/n as my removed unit, the intake manifold is both physically different and has a different p/n.
I have a 1949 GMC 228 engine with intake manifold p/n 6107877. The intake that came with the exhaust manifold is p/n 2194002.
Does anyone know if these are interchangeable? See attached photos.