Originally Posted by Mclovin
if you're gonna suck the gas with an 8.1 stick with the truck.. Trucks with 8.1s came backed by the allison trans.. burbans kept the 4L80E
as Scotty stated a 1500 with a 5.3 and a set of bags will more than do the job.. if you wana pull a GN down the rd or step to a fullsize rig id lean towards an HD with the 6.0 and get the PCM tuned !! these trucks in stock tune are DOGS !!
A 5.3 will not do the job very well. My 6.0 HD was FAR better than my 5.3. I've tried tuning gas engines and found the tunes don't do much for them.