Quote Originally Posted by cjriojas View Post
Down to the same. Hell, it could even get better since your 4.8 revs up more often to get your tank moving...
my in-town mileage went from 14 to 16 when i swapped from the 4.3 to the 5.3 and only went down by 1 on the interstate.

Quote Originally Posted by cjriojas View Post
...And everyone quit telling him to get a high stall torque converter. He wants an offroad/onroad truck. Like casey said, anything higher than a 2800 stall tc will hinder performance.
sorry... i'm still learning about auto stuff. i drive a man's transmission