I have many parts sitting around, some ive had for years, sitting just waiting for use. Cranks, engine blocks and heads, transmission internals ect. I coat the parts with Lubrimatic white lithium grease, and put them in a sealed bag. When i open the bag back up, they are good as they was when they were put in it.
If the crank is out, it would be best (IMO) to take it to a machine shop and have it reworked. The extra cost is well worth it. Once thats done have them order the right bearings for whatever grind they give it and be very careful on reassembly. the slightest ding and it will be over fast. Depending on how major the work is your doing it will be worth it in the long run (or if you want it to run long). Many times ive seen people take apart engines, assemble them without having the proper crank work done, and they end up spinning a bearing shortly after reassembly.
