Get the GTE version of it. Its a little more powerful and just as reliable. Gas mileage will not be your best friend, but having a 4 door Supra is fun. The longblock goes for a descent and affordable price as well. The swap itself is not difficult to do. You will NOT need a new transmission since the GE and GTE both share the same bolt pattern around the bell housing. Only thing is though, the GE transmissions hold up to 400 horse power before anything internal has to be done. While you have the motor out, might as well change the torque converter.