NO!
The grind is different on solid lifter and hydraulic camshafts, specifically the "acceleration ramp" that establishes the clearance. For instance, if a solid cam has a .012" specified clearance, there will be an area of slow, gradual lift ground into the lobe, 12 thousandths high, to gently take up the slack before the valve actually starts opening. Hydraulic cams generally have only 3 or 4 thousandths of accel ramp, so if you put solids on a hydraulic shaft, the clearance would have to be set about .005" or less, and adjusted weekly, at least. More clearance than that would result in slam-bang valve opening, with lots of noise and wear.
Putting hydraulics on a solid shaft will noticeably increase the duration of the valve opening, sort of a "poor man's race cam". In practice, that's not a good idea, either!
Jerry
