Thanks man, I will look around for an engine. But I honestly have no idea what can and cant fit in there. I am obviously new to this. So if there is any type of list of things that the engine needs to have then tell me. Like can truly ANY 350 fit..or just ones from 68-72 or what. And if not, then do I really need a small block or can I go larger. I would like to make it a little quicker than it was when it ran so bigger and faster is always better. Also, since it is a 3-speed will that effect the engine?