Update: This is what we did as noted above. Set the engine in, marked the front cross member and drilled then slotted the holes for adjustment. Ends up with the nose of the engine up about 3/4" from original as seen when we tried to fit the lower radiator hose. Simply had to match a hose up and works fine.
Also there will be an issue with the throttle linkage as the pivot on the '62 engine is farther to the rear. used the '62 pivot and after tweaking it so the carb linkage clears the '55 manifold works fine. We will have to shorten the throttle pedal rod but will get to that later.
