Help needed with sb 318

So the dip stick question leads to another problem......when you go shopping for parts (like the correct dip stick), all the kid at the parts store wants to know is the make and model of vehicle it came from so he can look up the parts. These things are not in his computer. So I've got to come up with a vehicle the engine would probably match up to. Since the date stamp on the engine says 2-15-83, best guess for now would be a 1983 Dodge D200?