I just built a really nasty sbc 400,put it in the car and its a great motor.less the 25 miles on the motor.so i went to my local junkyard yesterday looking for seatbelts for a friend and was just curious to know if they had any ls motors.well just bs'ing around i told the guy that if he had 1 that was over 100k i'll buy it.to my surprise he had 1 with 110k(5.3).i thought he was going to ask 700 for it.it cost me 264.73 with the harness,ecm and its complete!!!!!!!!!!!!!!!!