60049
https://www.amazon.com/Continental-E...dp/B000C34LLE# May have to trim a little off length. It is 1 3/4 ID each end. Check your radiator and outlet.
I used Gates 20727, on my 1960, but the pictures don't look right now. It used to be the correct hose but Gates changed it. The 60049 looks correct and is verified in 6066Club search. I don't like universal ribbed hoses either.