A correct and complete answer will depend totally on your specific engine, its condition and status when put into storage. If all is in good condition, you should be able to change the lube oil, purge the fuel system with fresh fuel, flush cooling system and go. I have seen units with heavy carbon have problems after sitting and drying out for an extended time though, worst case may require a decarbon job - remove head and cylinder and thoroughly clean out all carbon deposits in combustion and port areas as well as ring lands. If your engine rolls over easily by hand without any binding or tight spots and also makes good compression, then everything is probably allright for a startup. After initial startup you will have to check it very carefully for leaks or any signs of oil contamination especially in the form of coolant. I'm sure others will also have some thoughtful input for you.
Best of luck with your project!
dieselgman
