Should I: 1) Buy the GSR drop-out for $3500 or 2) buy the LS drop-out for $2200 and use the other $1300 to buy a VTEC head? Warning: Ignorant question ahead! Isn't the head the whole difference between the two motors? I would love to be able to afford a Dart Block and build aftermarket from the oil drain plug to the valve cover. I know the parts are out there. Not because I'd be rich (or financially advantaged, in the interest of political correctness), but because I would be able to say that I built the engine that just embarrassed you.