This pic shows two styles of the 1933 and 1934 Ford Model 40/46 four cylinder radiator outlet pipes. Both pipes are roughly 16 inches long.
The upper straight pipe assembly is part number 46-8291-A and was used until April of 1933, based on Ford drawing information researched at the Benson Ford Research Center.
The lower pipe assembly is part number 46-8291-B and has an added dogleg at the front. The B suffix pipe was released on March 15, 1933 and revised slightly on April 3, 1933 for all Model 46.
These two styles of pipes were the only Model 40/46 variations I found in my research at the archives.