Do a Search here on:

+pump +plate

and you will see that this topic is discussed quite often.

Here is the write-up by the member who makes/sells the 1955-1963 235/261 water pump relocation plate:
http://chev235guy.blogspot.com/search/label/Water%20Pump%20Relocation%20Adapter

The 235/261 water pump is in the correct location on 1954 and early 1955 high-pressure engines.

The "short shaft" water pump and the wrong year/diameter fan blades are incorrectly located for optimum cooling in earlier trucks.

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.