The head isn't just vtec by itself. For instance, you can get a Civic Si head for a couple hundred but it wont be vtec without the vtec solenoid. Plus there's a lot of other parts you hafta get not to mention making your car ready to handle it safely. All in all, I was thinking about it too, but its ALWAYs more money than you think it will be. For a nice simple set up, I would say you're looking at 2 g's. Do a search though, there's guys who know alot more about this than me...