Well I suppose you could if you don't care for longevity and LS tranny more than likely wont hold up that's why people swap it to a GSR or ITR one but its not my build just recommendations
DAFUQ? You don't need an ITR transmission for a LS/V. The LS transmission "holds up" just as well. The only difference is the gear ratios in the transmissions.. they are pretty much equal as far as strength.