A 440 is obvious as the 383 supporters most likely vote for the underdog everytime....it just makes sense, that dollar for dollar the 440 is just as economical to build as a 383.....so what advantage is there with 57 less cubes....read the want ads and for one example...you'll see..."mopar for sale...383 with 440 heads" If the thing was that great it would run it's own heads....