I finished putting aluminium coolant pipes under my F The old ones had a pin hole in one of them. I had to flare the pipe as the first time I did it the rubber hose just slipped off when it got up to temp & pressure. I did it in 4 pieces of tube & just used the rubber for the bends in the front, I was able to throw a fair bit of the rubber hose out & made the tube go closer to the radiator. It should add to the cooling capacity as well.
I cleaned the radiator out too it probably only had 60% of its tubes open. I used a long piece of copper to push gunk out.