I don't think you mean "flathead". The stock motor would be an inline 6 cyl. 216 cubic inches. Single barrel Carter carb. Points and condensor under distributor cap. Either a 3 or 4 speed transmission. You could possibly have a 5 speed under or overdrive tranny, but that was usually for slightly bigger models than yours. Go to the gallery and check out similar models. Some of those guys have web pages that will get you a good start. Before you start tearing into it, have a goal in mind first as to your finished product. And then stick to it. It's the mid-course corrections that cost the real money. grin