Biggest problem with molded two-different-end-sizes rad hoses at the water pump is, the gearshift rod usually rubs the hose, since hoses expand and move when full of hot water. The engine also moves on its rubber motor mounts. This was a problem because some early Pantera gearshift rods WORE A HOLE thru the stock hose! Had ZERO to do with collapsing a hose in high speed use.
It was enough of a concern for Ford that a specific metal part with thinner walls than the molded hose, was developed by Ford (D26Y-8290-A) to fix all cars after Chassis #3564. There is a Tech Service Bulletin (TSB #12 article 101) covering this Factory Fix dating back to 1974 when the Pantera was still in production.. I would NOT use any molded hose combination in that area You're just recreating a known 50-yr-old problem.