Try putting the hub on a hotplate/stove for a couple minutes and slip it on using oven mitts and tap it home with a mallet. Drilling, tapping, and beating can all be avoided and IMO if it was designed to be drawn on Chevrolet engineers would have put a thread there in the first place. Freeze/cold spray works wonders preparing sleeves/bushings for interference fits but will not reduce the diameter of a solid crank any more than a couple tenths and not worth bothering.
