Exhaust Manifold 2863000 or 2863900

For 383, casting 2863000 or 2863900
Yes, I don't see #2863000 listed.

#2863900 is for 67-69 a body 383 and 440 and a #2899002 is the Drivers side manifold for 67 only. #2946729 is the drivers side manifold for a 68 and 69 383 A body.