Will not start

I put a new engine in the car and when I tried to start it the engine cranks but won't start. I checked for fuel at the filter, and it had plenty. Then I checked for spark by pulling a wire on the coil and there is no spark so then I checked for power to the coil at the plug connector on the center wire and there is none. I then tested the grounds to the engine, and they are all good as well as the battery connections. I have checked all of the fuses as well and they are all good as well. I also hooked up my scan tool to check for codes and there were none and I had no problem communicating with the ECM. What else could be causing the no spark issue? The camshaft position sensor and the crankshaft position sensor are the ones from the engine before I replaced the right-side head and refurbished the left head which included lapping the valves and adjusting the valves lash. The block and intake are still the original the only reason I replaced the right-side head is because the camshaft split right in the center, but it was driven to Fairbanks AK from Healy AK and was still running when I pulled it out. Now no spark.