I'm debating on replacing the radiator for '66 Newport with a 383. It's old (pretty sure it's original) but honestly, it doesn't leak. I took it out the other day to run water through it and attempt to clean it out. At first it was a bit dirty, nothing terrible. It didn't take long for clear water to come out. I've replaced the thermostat, I have a new thermal fan clutch on order to solve the overheating issues i'm having with it. The fan shroud on the current radiator bolts to the side of the radiator, but every radiator i've seen online has bolts on the back side of it that, i'm assuming, is where the fan shroud would mount to. I've been told that taking the radiator in to have it cleaned out costs about the same as a brand new radiator anyway. Anyone have any suggestions as to whether I should even get a new one.....or just have this one cleaned out and pressure tested? I also have a new radiator cap on order as well, with the correct 16 PSI.