Originally Posted by trillobite
That is interesting, you would think that the added compression, cooling, and reduction in weight would have made all the difference.
thats the thing.. today.. people get the idea alum makes more because they run higher compression..
but a 12 to 1 iron headed and the same engine with alum heads..
if both the same in everyway other than heads casting material..
the iron wins everytime..
if you got the fuel..
e85 if they'd cast say dart pro ones in iron.. would rock