as far as revs go, who cares it it doesnt rev much higher then 7k, the power band is below that anyways. You cant compare revs with the two engines, they are built differently; bore/stroke wise. Thats like ripping on the SR cuz the CA will out rev it. And as far at cast iron block goes, I see that as a good thing, stronger and no cylinder wall flex. There are a few KAs out there putting 350~ to the wheels on stock internals, and they are daily driven cars. If it came down to it I would choose, in this order; KA24DE-T......CA18DET........SR20DET. But then there is also the RB.
