What if motor not running because you had to put a cam in it?

I dont understand what you are asking. If the cam is bad the engine will still run just real bad.And running it with a bad cam could destroy the engine. Now if you mean put in a new cam,you will need new lifters and new valve springs with retainers and new valve stem seals. Also you have to "break in" a new cam, if you dont do it right it will fail within a few minutes. You need to be way more clear on what you are asking.