Rad hose guesswork
 

Much thanks to OrrieG for posting his rad hose part numbers.seems like it will work for my big block camaro clipped 56 as well.just need to lookup correct angle thermostat housing. NAPA auto parts got hoses in overnight ORIGINAL POST: Here are the hoses I found at Riellys for my 59, stock radiator, 350 sbc. The upper is a Gates 20416, I had to shorten the end that goes on the radiator. The lower is a Gates 20584, I had to shorten the radiator end on it too. The applications are not GM, I took in a bent wire and diameters. I got them at Reilys. Here is a photo of the upper, do not have one of the lower.
https://i.ibb.co/YPkMfnj/DSC00089.jpg
upper against new rad below

https://i.ibb.co/ZVvnrsm/IMG-1365.jpg
pic of upper and lowers
https://i.ibb.co/mtfQpgH/IMG-1367.jpg