May have a slant rad. not sure. The slant hose fits perfect on the rad. side, but not on the pump side. Don't know the history of the car, may be possible. The hose that I first installed fit the pump perfect, but was to big for the rad. I guess I'm the goober. I can get the flexable, with the dimentions I need, but I don't like the looks of them. The rad does appear to be 1.5 and the pump appears to be 1.75. The radiator was in the car when I bought it and may have been replaced with a slant one. The heater hose kit I got is supposed to be for a smallblock ,but may be it was baggged wrong or something. There is no markings on the fitting and the parts store only had 1/2 inch or 3/8's. The one in the kit looks like 3/8's. I remember back early this summer when I pulled the engine it did have a lower flex hose, that's probaly why because a molded hose wouldn't work.