Finding a one-piece direct-fit radiator hose for a custom application is frustrating, if not impossible. To avoid the headache, we used a universal flex hose. The flexible hose has a spring inside that allows the hose to bend without collapsing. When you cut the hose to length, you will need to cut a coil or two out so the hose clamp won't be on top of it. We bent the end of the spring inward to keep it from wearing through the hose.