I recently installed a 350 in my 51 truck and I used a Cold Case brand radiator with a electric pusher fan in front of it and I'm also using a 4 blade mechanical fan in conjunction with the electric. It runs cool with no issues here in the south and we've had some hot days here lately. As far as hoses I used a top radiator hose from a late 50's truck with a V8 and on the bottom I reused the hose from my 261 just had to shorten it a bit. Hope this helps.