03-30-2007, 09:08 PM

DiamondJim DiamondJim is offline

Ultimate Warrior

Join Date: Feb 2002

Location: Peachtree City, Ga.

Posts: 3,390

Cast Iron Heads Make Power?

I have always heard that all things being equal(head flow/cam/etc) that cast iron heads will make more power than aluminum. As a percentage, any idea how much the difference is? Anyone ever see back to back dynos of heads with the same flows but one iron and one aluminum? What started me thinking about this is I woould like to get some Edelbrocks or KRE heads for another project, I also have some KRE race ported 6X-4's that flow 256/205. Opinions? Thanks -Jim

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