Well, I bought stuff, and capped both the holes, but the radiator is apparently still leaking by the #1 hole. I guess something inside busted/cracked/corroded so I might just have to get a new radiator all together. :[ Thanks for your help guys!


EDIT:

My dad failed to inform me that he had taken a nut off of hole #1 which was used to press the washer up against the radiator to stop the leaking. So we bought a cap and put it on hole #1 which in turn put pressure on the washer, fixing the leak! So now my car is all good to go.

THANKS!