Hey guys new to the site and have question regarding best aftermarket water pump for non radiator cowl, 4 speed, non a/c, bench seat W30. The best that I can come up with it should have came with 404584 water pump, hd cooling or w30. Currently has a pump from 73 or 74 455 and a non clutch fan. Runs hot in warm weather which I believe is because of the incorrect pump and 5 blade fan. The current set was on the car when I purchased it. Have managed to find what I believe to be a correct fan. 19" six blade clutch fan marked ERX. Not looking to take cheapest way out. Want a high quality, reliable, good cooling pump. Any feedback would be appreciated. Thank you

 

I can't recommend a specific part for the pump for you but I think that 6 blade clutched fan will make a noticeable difference for the better. Welcome to CO.