Cooling system for a 1964 Valiant with a 68 340 450 hp ?

Hello guys.

I am swapping in a 68 340 450 hp motor to my 64 valiant. I have this radiator

Champion Cooling Systems CC1635-BLK: 3-Row Aluminum Radiator 1963-1969 Dodge/Plymouth Vehicles (22 in. Core), Semi-Gloss Black Finish - JEGS

What water pump will I need ?
What clutch fan will I need
And can I use the original pulley syatem for the 68 340 ?