My LS vtech is being built right now...by a 12 yr acura master tech...If you don't know what you're doing, just have it built-it'll cost ya, but if it's done right the first time, it will be pretty reliable...it's when (no offense to those present) noobies read all this on here, get a performance book, and think they can build engines...done right, an LS vtech will last as long as a stock motor...IF IT IS BUILT RIGHT...If you're looking for something to do yourself, stick with a bolt in swap...don't start building frankensteins' unless you want a blown motor...let a professional do it right the first time...If you have to have LS/vtec, pay for it...you'l be happier in the long run...