So a blown 6.2L v8 v.s 4.5L NA V8? What about comparing that with the LS7's 2.5L advantage? Doesnt work out too well there. The LS7 then should make over 700hp from factory since it has so much more displacement right? How would the gas milage work then? You also cant argue weight and height either because the 4.5 is one of the smallest v8's made.