storing motor

I like to loosen all the rocker arm shaft bolts. This allows all the valves to close preventing moisture getting in some of the cylinders. Also, if it has hydraulic lifters, it will not keep the valve spring pushing it flat for months and months. I also like to put oil in the spark plug holes, and put rags in the exhaust holes. You can even put your used oil in the motor every time you change oil until its "full". Depends how long is long....