How difficult is it to turn an engine by hand?

How hard should it be to turn my LA360 by hand with the valve train and everything put together, so essentially the entire motor together. I know when the crank is in and mains torqued down it should spin easily, and with the shortblock together it should be more difficult but still spin freely.

I was just taking a look at my completed motor on the stand and was curious if I could turn the motor over by turning the harmonic balancer with my hands (spark plugs out of course!) it was fairly difficult (not much room to position hands around water pump) but I could get it to turn, I remember it was pretty easy to turn with a small wrench as well.

Should it be really easy to turn by hand? Or does it typically take some effort to turn the motor by hand? It was a freshly rebuilt 360 with the springs that come with the eddy alum heads. The bearings had all the correct clearances so I would really only be worried about the possibility of a bearing being misaligned or something. But if this would be the case would it be obvious that something was up with the bearings?