Late winter 2011 my Dad and I built a "Farmall B" from nothing but accumulated parts my Dad had collected over the years. Well it really is more like a "Super B". It has a C-153 out of a haybine in it. It has a Super A transmission and a C center section and a Super C grill and file tank. We had to make trip to the salvage yard to buy a couple things like a floor pan and miscellaneous hardware. I say all this to ask my question. When we were doing the project we were told that a manifold that sent the exhaust stack straight up the center was never made for a 153. I saw one the other day on a power unit engine. Will a late C-135 manifold work on a C-153? The power unit engine had the C-153 cast right in the side. Is this rare? Should I buy it?