Rebuilt 340 been sitting for about 5 years

I don't remember putting oil in it...so I'm sure its dry..

I came over to check it after work and the valve covers were not even bolted down. I was in the process of just painting it. I looked and there was a little bit of surface rust showing so It might not be too bad.. I will work on it this weekend and see if I can even turn it.

Thank You for all the suggestions..