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  1. N

    2002 Avalanche 6.2 Vortec swap?

    Im wondering if anyone here has done this before and/or has advice on this mod.
  2. O

    Who rebuilds 8.1L in CA?

    Does' anybody know of a engine rebuilder/machine shop familiar with the 8.1L? I am in Southern California (Orange County) or Lake Havasu City, Arizona.
  3. xKingdom

    Engine help - Turbo kit for 2008 5.3L

    What’s up everyone, hoping you all could help point me in the right direction here. So in the just over a year I’ve owned my avalanche I’ve done about every mod you can think of besides doing anything to the engine, which has to be done because it’s so ungodly underpowered. I currently have a...
  4. xKingdom

    08 Avalanche go fast parts - CAM, DOD delete kits?

    Hey guys I got a bit of a lifter tick today, I have no desire to get my lifters repaired so I’d like to delete them completely. Does anyone have any recommendations for what cam/kit I should buy? What other mods can I do? I’d like to make it as fast and powerful as I can for being a tank. And...
  5. xKingdom

    450HP Avalanche

    Hey everyone, I’m looking for parts or recommendations to get my 08 lanche to 450hp. From what I’ve read online it makes 305-315 now, jus looking to have a bit more under the hood because of my 33x12.5s haha. Could I achieve this power with a cam and afm delete lifters, new heads, intake, and...
  6. TFjed

    Knock if left to idle after oil change.

    Hello all, So I had no issues like this until after getting my oil changed. About a week afterward I was in my in-laws apt. and left my truck run since it was cold and I was basically in & out. I come out and hear that horrible lifter knock and immediately figure my engine is blown. With little...
  7. B

    High RPM

    03 Avalanche Z71 I was driving on the highway going about 60mph on cruise control I sped up to get over a lane. But when I put my foot on the gas the rpm shot up to 5000 rpm I slowed down and pulled over instantly took the nearest exit and drove home. As I was driving home anytime I tried to go...