its in a ww2 wc 25 1/2 ton command car that I am restoring for parade use. I would like to keep the manifold original to the engine (headers would look strange) -- the engine is of course a replacement, but as its not to be a show car, I don't care that its not the smaller 230 engine. If you do decide to part with your manifold, let me know how much, not sure where else to find one. Are 251's hard to find parts for ??? they look just like the smaller blocks except for the lenth...