Can you put 318 heads on a 360?I have a 77 360 also a 73 318,I,m wondering if I take the 318 heads and do a home port & polish(over the winter) and put some big valves in them.Are they small chamber?Is it worth it or should I just do the 360 heads?I,m kinda new to Mopar engines(360,s and 318,s)I...