Valve train noise

Just asking....are you certain the shafts are installed the right way?
I put them back in the way I took them out, I hope they are right it didn't tick before the cam and head swap. I put the passenger side shaft with the notch to the back of the block and down and the drivers has the notch to the front of the engine with notch down. I just got home and checked the push rods to see if I could move them under load and I cannot. But when both exh and intake valves are closed I can wiggle the push rods and there is up and down play, that's not right is it, I thought there was some sort of preload that keeps them tight against the rocker?