I doubt it Jreily, i have a Trailblazer SS with PCM tune, well over 400 HP with the tune, and i cannot keep up with my buddies stock 04 lightning. He gets a good 2 truck lengths from 0-60 and then we stay pretty even from there on. Considering a Silverado is just as heavy (or heavier) then the TBSS, your probably looking at a 14.5 at the track with the 6.2, Ofcourse, with a 6 speed auto, that might improve a bit,