Best WaterPump for 63 Valiant 225?

In general it grows harder every day to get good-quality parts for our old cars. Doesn't matter what brand you buy; pretty much all the water pumps presently available for Slant-6 engines are Chinese or Thai junk with incorrect impellers (too many blades = earlier cavitation at lower RPM) and low-bid bearings and seals. You might get lucky and have a new pump work OK and last awhile, but we are no longer in the days when we had a choice of five or six or ten reputable brands all offering good-quality pumps and there were differences among them other than the name on the box.

I've spent enough years squirrelling away good American-made parts that I have too many for my own needs, including water pumps; send me a PM if you wish.