In continuing my...um..."research project," I've come up with alot of questions. Are the 218 head and the 230 head the same head? Will a 218 head on a 230 increase compression? Are the combustion chambers the same volume? What about casting thicknesses? Valve shrouding? Which flows better and why? Which specific head is the best for performance and why(i've heard the '59 car head is the best)? I need to know everything you know about the factory flathead heads. Thanks.
-Jeff
