I doubt that anything could cool the engine too much. If you are running a water/antifreeze mixture, the system is already at a disadvantage over pure water. A little extra water flow might be helpful. I added an overflow can, too.

Not sure if it affects cooling but I purchased a 35 water pump from Bernbaums and aside from the difference in the backing plate the impeller was different.
The configuration of the impeller was a round piece with multiple fins as opposed to the 2 fin set up on the original 34 water pump.
This would suggest more cooling water flow which may cause  the upper temperature to cool too much?

There are a number of rebuilding services available if you can't find a pump that fits.

If you have a little metal working skill, you can buy a pump for a '35-59 Plymouth or Dodge (new units available by order from NAPA, etc.) and make your own backing plate from 1/8" flat stock: The mounting bolt/stud holes are the same for all pumps but the inlet to the block is different on '33 and '34 and that is all in the backing plate.

need a water pump body (or complete unit) for a PE. or leads on what else will fit it since it is not a true restoration. thanks
Richard    send reply to             or       407-417-4882