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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.

2,741 topics in this forum

  1. 6L80E bypass valve mod

    By AZ_SS,
    • 6 replies
    • 5.1k views

  2. Which Long Tube HEADERS for the 6.2 and why? 1 2 3

    By Darksky,   
    • 44 replies
    • 57.4k views

  3. Overloaded 1 2

    By Lou Summerall,
    • 25 replies
    • 3.5k views

  4. Exhaust installation purchased through Chevy's accessories website

    By ChristopherDB,
    • 8 replies
    • 3.6k views

  5. 2014 V8 ecotech to V6 ecotech

    By nathanh,
    • 6 replies
    • 1.3k views

  6. Muffler Delete, Afm turned off drone

    By Joshgh,
    • 1 reply
    • 889 views

  7. Oil pump failure

    By LLB,
    • 1 reply
    • 983 views

  8. GM/Borla Exhaust on 2018 6.2 Silverado 1500

    By newChevyOwner,
    • 3 replies
    • 2.6k views

  9. Added longtube headers to Corsa sport, Way too loud.. help

    By chriscote781,
    • 11 replies
    • 7.9k views

  10. Fuel Injector cleaning (Throttle Body) 1 2

    By texasaggies16,
    • 15 replies
    • 44.3k views

  11. Stock Exhaust Sys Value

    By Holy Smokes,   
    • 4 replies
    • 1.3k views

  12. 4.10 Gears

    By geswek,
    • 4 replies
    • 816 views

  13. Motor codes

    By Nasty,
    • 1 reply
    • 603 views

  14. 2017 5.3 ProCharger WOT under the hood.

    By Gorske,
    • 2 replies
    • 873 views

  15. Exhaust tone

    By artacus,
    • 3 replies
    • 671 views

  16. 2018 6.2 Borla ATAK and K&N acceleration video

    By QUIKAG,
    • 6 replies
    • 2k views

  17. Transmission problem?

    By Blue-14-Silverado,
    • 6 replies
    • 847 views

  18. Replacing the 6L80E thermostat

    By Rob Featherstone,
    • 3 replies
    • 6.2k views

  19. 2017 Silverado 5.3 ProCharger with Corsa dB.

    By Gorske,
    • 3 replies
    • 1.7k views

  20. Sticker price claims that GM installed All-Terrian tires? NOT!

    By FullThrottleSilverado,
    • 6 replies
    • 818 views

  21. Sticker price claims that GM installed All-Terrian tires? NOT! 1 2

    By FullThrottleSilverado,   
    • 19 replies
    • 2.6k views

  22. Why I installed 4.10 Gears - 1 2

    By Heritagedave,
    • 27 replies
    • 26.6k views

  23. Manual transmission for LV3 4.3

    By off.camber,
    • 10 replies
    • 16.5k views

  24. Dutchman axles

    By Nasty,
    • 2 replies
    • 839 views

  25. EMC updates for 2019 new V8 engines

    By Retired Bob,
    • 0 replies
    • 894 views
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