You can't measure the cam profile with hand tools, if you have 2 cams you can get a good idea whether they are different but that's about it. Even measuring lift is dodgy, again you can compare 2 cams but as for specifications, most are specified at valve lift not lobe lift so the rocker geometry is involved.
As far as the crank goes, with a crank reground for more stroke the difference is in the rod big end bearing journals. If they are a few mm smaller than stock, the engine might be stroked. The increase in stroke will be almost exactly 1/2 of the journal diameter reduction. New rods that are shorter than stock and have a smaller big end diameter are required. The better way to do a stroked crank is to make a new one with proper size big end journals spaced out a bit; smaller journals means a weaker crank, not a great idea when increasing power from stock. If one can get unground crank forgings there's usually enough metal to grind a stock sized journal further out than stock. Special short rods are always needed so the piston TDC is not past the cylinder deck. The cases usually need to be machined to clear the rods as they swing further out.
