Im new here but id like to join in the debate. I just swapped my blown up 4.8 for a 5.3 of the same model year. I only gained 10 horse power but liked the idea of getting 35 extra lbs of torque for towing. I kinda figured a 6.0 would surely take its toll on my 5spd and love the looks of others faces when I keep up with them.