Restarting the engine

[robert shreveport]

My A has a new engine, but has never been installed in the car. Was built 8 yrs. ago. It was been in my shop with every opening covered with clean rags. I’ve tried without complete success to, turn the engine over and squirt a squirt of marvel mystery oil in each cylinder once a month. It is free and turns over with great compression. It has inserts in the bottom end and a B head. My wife is and has been on me to complete putting it (the car) back together. Will the engine be fine still? Comments please