Forged this forged that do you even know what this means without copy and pasting it from google wiki etc? This is like a thread from civiclife, proper bs, you should use the b18c4 head because it has quench pads, do you know what you gain from this or are you too copy and pasting from google or because your mate in the pub told you so? There is no reasoning behind any of these claims just Internet bs. Do some real research and testing then Come back with a real opinion. How can you comment on something that you know nothing about? The guy has not even mentioned a power level what turbo, boost level etc