5/8 kink free heater hose

Hey there people, I have a 1936 Plymouth P1 with a 1968 383 with a mild cam. The heater core is shot, don’t need heat, so I want to run the hose back to the block but the hose keeps collapsing, I’ve tried 9” and 1 foot hose, what would you recommend
Thanks in advance.
Jim
Author: JPR56