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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.

2,739 topics in this forum

  1. Biggest tires on stock lift?

    By Towing9s,
    • 8 replies
    • 2k views

  2. 2017 5.3 ProCharger fun at the track!

    By Gorske,
    • 5 replies
    • 1.1k views

  3. 2017 Z71 5.3 ProCharger track videos.

    By Gorske,
    • 8 replies
    • 1k views

  4. Curbed Rim Fix

    By Jimmyc!,   
    • 1 reply
    • 829 views

  5. 2017 5.3 ProCharger exhaust video

    By Gorske,
    • 2 replies
    • 728 views

  6. Deep transmission pan

    By johnk45,   
    • 13 replies
    • 3.6k views

  7. Should I Keep Factory Cat Back Exhaust or Chop it up?

    By SkiDooNick700,
    • 5 replies
    • 933 views

  8. Clunk when acclerating

    By THE_Engineer,
    • 2 replies
    • 1.1k views

  9. Black Exhaust Tip Pictures

    By ray2005,
    • 2 replies
    • 1.4k views

  10. 2016 GMC Sierra All Terrain X Exhaust

    By Mtyv23,   
    • 4 replies
    • 2.7k views

  11. What is this for?

    By Armo325,
    • 8 replies
    • 1.6k views

  12. 12s!! 2017 Z71 5.3 ProCharger

    By Gorske,
    • 8 replies
    • 4.6k views

  13. Troubleshooting for 3rd Cylinder Misfire

    By Bugeaters36,   
    • 5 replies
    • 7.9k views

  14. MPG Challenge: Silverado Duramax vs Cummins vs Power Stroke

    By Retired Bob,
    • 0 replies
    • 1.1k views

  15. Auxiliary external transmission oil cooler

    By Okie72,   
    • 14 replies
    • 16k views

  16. Gear change confusion

    By cr250Silverado,   
    • 0 replies
    • 1.2k views

  17. 2014 Silverado off road upgrading

    By WesternMike,
    • 14 replies
    • 2.4k views

  18. 4.3l v6 exhaust

    By Eric Seashore,
    • 2 replies
    • 1.6k views

  19. throttle booster < throttle body on the 4.3

    By WHITESSTOWPIG,
    • 0 replies
    • 1.7k views

  20. Newest times with a video 5.3 ProCharger

    By Gorske,
    • 10 replies
    • 5.4k views

  21. Long Tube Headers

    By WesternMike,
    • 1 reply
    • 936 views

  22. 2014 Chevrolet Silverado 4dr 4x4 LTZ Z71 towing capability

    By Jbo30,   
    • 4 replies
    • 1.5k views

  23. JET MAF SENSOR # 69180

    By WHITESSTOWPIG,
    • 2 replies
    • 1.8k views

  24. 4.6 vs. 5.3- potential buyer 1 2 3

    By bamafan76,
    • 41 replies
    • 25.4k views

  25. Transmission pan and diff cover upgrades

    By SilveradoKeydet11,   
    • 3 replies
    • 1.6k views

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