The iron vs aluminum cylinder head argument is over.

I was thinking about merging some threads to combine some if this info. What do you think?
We pretty much need a cylinder head specific forum. If you want to take this site to the next level that's what should happen.

How you want to section it is up to you but definitely.... Iron Head ...aftermarket Ironhead w2.....aluminum replacement head ...then Exotic AL...w5,w8,w9,brodix,indy,batton,etc