Im in the middle of a swap from a 305 carbed to 350 carbed and i was installing the water pump that came from the 350 back onto it and i noticed that my old water pump was different , the old had way more holes then the new and the where the feedback hose went on the old water pump has a plug in it on the new, also on the bottom left side of the new pump there is a hole with threads. I dont know what would go there. Could i just put the plug into the bottom left hole then use the top hole as the feedback hole? In the pictures u can see the old water pump is way different than the new

 

The freshly painted one is a "short" pump; 50s & 60s. Won't even begin to think about considering maybe planning to possibly randomly accidentally even come close to working in a 80s car.

If this is going back in the same car with the same cooling system, use the old pump.

 

Thats shitty news but thanks for the info!

 

How so?

 

My old pump was defective so i gotta buy a new water pump, i wanted to reuse the pump thats on the motor but cant if it wont work

 

Can u send me a link to a water pump that would work with my car and motor on summit?

 

You don't need a link from me... just look up the one for whatever year car you have, 305.