First, when did you know something was wrong?
When I started the engine and I heard what thought was valve lifter noise.

Does the engine turn over?
Yes

Did you realize something was wrong when you first cranked the engine over?
Yes

Did the engine run at all after re-installing the cylinder head?
Yes, I was thinking maybe the valve lifters need to pressurize.

Did you leave the spark plugs in the head for the duration of the job?
Yes