Grady, My Chevy Inline 6 Engines resource book shows an exhaust # of 3885388 for 1950-53 216. It doesn't show a "3885888" and that 3rd from last 8 in yours should actually be a "3" I think. The intake 3835527 is a match for 1950-53 216 also. If you do a bit more looking on the manifolds, there should be a date casting number starting with a single letter and a couple of numbers. If you can find them, post them here and we can decode what they mean.
