SlvrSierra4.8

iTrader: (24)

The Comp 206/212 or the 208/212 would be a good choice given the application IMO... Combined w/ a Yank tt2600/3000, LT's, 3.73's/4.10's, & a quality tune should make a nice improvement

chevytruckguy

I'll be putting a comp cams 212/218 low lift in my 4.8. Z06 springs in case you wanted to know. Converter should be next.

L7 Sierra

I would go 4.56 as I get the same MPG in D or OD which roughly equates to 4.33-4.56 in OD.

I am in a holding pattern of mods since I'm getting a house that needs the most powerfull weapon in all the land.

CASH

kylloso

tru dam my 4.8 is so stubborn it wont come down from a 2.3 60 even with juice and im runin 3.73 with a detroit tru trac but catch me on a 30 roll and its another story

95 bright teal

a stall will fix your 60fts

Formula96

I think that is my route, i talked with the guys at thunder last night and that is what they recomended...

slidesquad

what are your mods? and what were your mph?

GMCtrk

iTrader: (27)

Or you can just swap a 6.0 which will be cheaper and give more power. BlackGMC has his 4.8 maxed out around 300rwhp/300rwtq....all boltons and cam if i remember correctly and ls6 intake.

skyhighsami

iTrader: (8)

22s won't hurt you as much as you think. I had billet 24s on my 1500 and it wasn't that bad at all. Consider lowering it, if you were a try redneck you would have a rebel flag sticker somewhere on the truck and a CB antenna that is taller than your truck is long. It will be easier for your wife to get in and out of, it will handle better, you can run a little shorter tire because you won't have so much fenderwell to fill. You don't have to go crazy just measure the gap between the top of the tire and the bottom of the fender. Then deside what amount of gap would look best. Then lower it that amount. If the tire you are going to run is 1.6 taller, the top of the tire will only be half that closer to the fender. Just a thought

Formula96

^^^my rebal flag stickers are on the way, LOL