Cast iron heads vs aluminum..

[406Rich]

Here`s a good read on aluminum heads vs cast iron, with all the comparative tests interesting cast iron still almost out performs the alum, now were talking of standard street heads not your billion dollar one off sets...http://www.carcraft.com/techarticles...social27554486

[cffisher]

It was cheaper for me to go with the aluminum heads than find and redo as set of iron ones. Just preference I guess.