Yeah so as many of you know I traded the firebird for an 03 Chevy Avalanche. Right now it needs two doors and a rocker panel on the drivers side. It also needs to go faster. The 5.3 has some go but not enough for me. I already used the hypertech tuner on it, helped it a little. It is a 2 wheel drive truck so if I keep it long enough I would like to lower it a little and see how fast I can make it. Plans as of right now are the usual mods intake, headers, exhaust and a few things for looks. What I need is somebody who is familiar with full size trucks, what mods do you suggest? I've always thought 2 wheel drive trucks should be lowered a little and made to go fast. 4 wheel drive should be lifted and well made to go fast!!

can't wait to see what you do with it bud! good luck and definitely keep us updated as you go along!

Procharger?

HEY MY BIG TRUCK IS A 4WD AND LOWERED!!!!


GOOD LUCK WITH THE PROJECT!!!

Definitely a possibility after tax season. I want to see how it handles after lowering it and upgrading the suspension though. Going fast in it now is like driving a runaway freight train. I went from a sports car to a 7000 pound truck.

save your money on the intake and exhaust and spend it on a turbo and a 4l80e swap.

Didn't even think turbo, as far as tranny swap I was looking into t-56. I miss the 6 speed. Anybody make a turbo setup that you recommend or should I contact a shop to do a custom setup? This also all depends on how well the truck handles after lowering it. I know it will never handle like my firebird but a buddy of mine has a lowered sierra with all hotchkis suspension and I like the way that handles but his truck is also lighter than my truck.

do the turbo setup yourself, on those trucks its cake.. as far as putting a man pedal in it, a t-56 will not hold up, the truck is too heavy. but you could use a factory nv4500 from a pickup.

i think i might do my turbo 5.3 project this winter, so I can get you a nice parts list if you want.

A parts list would be great. Thanks for the help!

turbo!! only way to go on that. flip the manifolds and make your own pipes. its pretty simple on that. plus i posted something about a stock 5.3 with a turbo in a ford that went 9's. but until you go that route, pm badmax on here and talk to him about a tune. he does EFI live on all the duramax's around this area and he has done quite a few gas tunes also.

Slowhawk had a turbo kit and 4l80 swap on his avalanche but i don't think he has the turbo on there anymore although it was for sale.