617.952 Turbo Diesel Engine. I took this Engine out of a 1981 300SD with only 126,000 miles. I drove the car home from where I bought it (35 mile trip) and the car ran great. It had plenty of pickup and no smoke.

The engine in my car 83 300D runs fine and it has only 167,000 miles on it. It may be a long time before I need this engine. How long can you store an engine? I live where the humidity is high and even though I will be storing the engine in a dry place I'm worried the engine won't last till I need it.

What would you do?