0-60 run in 8.1L 03 silverado
This is my dad's 2003 chevy silverado 2500HD quad cab. It's got an 8.1 liter, 496 ci vortec with an allison 5 speed tranny. It's not the fastest truck out there, but it moves pretty good for it's massive size and weight.
496 (8.1) straight piped
my chevy 2500 hd with a 496 straight piped
8.1 Liter GMC sierra crazy burnout
Will tuned 8.1 GMC sierra
8.1 liter 496 big block 2500hd
Just a video of my 2500hd with the 8.1 liter allison 5 speed transmission. pcm4less custom tune k@n cold air intake, magnaflow true dual Exhaust, chipped. Dyno 485 which is pulling power for this truck. this truck is not set up to race but i have ran a duramax diesal and ate him for dinner lol. the whining you hear is not the motor about to blow up its a tensioner pulley going bad.