273 New Water Pump

I just looked on www.rockauto.com under 65 Dart 273 and all 7 photos look like your original iron water pump, prices $24 to $54 + shipping, hopefully wysiwyg. ebay is also great for photos.

Note there is a difference between factory AC cars and not. As people on FABO determined, the difference (# blades) is not for better water flow. The designers certainly wanted max water flow for either. They added extra cooling ability via radiator selection. AC cars have a smaller diameter pulley so water pump rpm is faster and thus needs fewer blades (6 vs 8). I recall this because it seems backwards (expect more blades for AC), but verify my memory. This might also be just for later alum wp's.

I put a later alum w.p. along w/ radiator on my 65 273, but that opened a can of worms (p.s. pump, pulleys, clearance to rad.).