Converting from auto to 5 speed. Do you need to change the radiator?

[Kevin71]

I am converting a 71 challenger automatic to a 5 speed.  The trans fluid lines run to the radiator.  Do I just block them off.  Or do I need a different radiator.  Would it run hotter or cooler with the same radiator?

[Chryco Psycho]

use the rad you have , it will run cooler with the std tranny as you will have no added heat from the tranny to disapate , just thread some plugs in the the cooler connections into the rad