there are some very rare b16 autos, jdm only, and almost impossible to find. the ls auto works.. but not very well. you have to run a chipped p28 auto ecu, or a ghetto rigged ls auto ecu. if you really want an auto, keep the ls motor. you will have to spend $$$$$$$$ to make it handle a lot of power, and even then, it still wont be nearly as good as a manual.