i have no indifference between either motor, im just ready to haev a v8 in my truck. ive had it since highschool as a sophmore and im on my second v6 motor. i know that the ls1 can be tuned easier than the lt1. Overall im not too worried about making the motor make tremendous power, i just want it to be more than what im used to which it will be as soon as i get it running. Also i just want to be able to say i have a 6 speed in a old pickup. not many people in my area can say that.