Heres a conceptual question I have, since I'm not very hands on with the different engines, nor am I engineering inclined. I am sorta unimpressed and to a degree disappointed to GM'* lack of participation in the horsepower war thats going on. 240 horsepower out of a 3.9? Nissan got 255 out of a 3.5 6 years ago. I know in terms of highway driving it doesn't even really matter and these numbers are really bragging rights, but anyways, is this 'lack of power' the result of using 'ancient' (but proven and reliable) pushrod technology?
2004 Chevy Impala "9C1"
3.8 Liters of 'Merican Pushrod Power
56,426 miles as of 7/1/2012