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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.

2,728 topics in this forum

  1. Check my thinking here.

    By Jay Ratliff,
    • 4 replies
    • 788 views

  2. NGK Ruthenium vs AC Delco Iridium spark plugs for 5.3? 1 2 3

    By greenoliver1,
    • 34 replies
    • 44.8k views

  3. Change atf or not? 1 2

    By countryguy1717,
    • 22 replies
    • 2k views

  4. Procharger D1SC to F1A

    By BlkBety,
    • 0 replies
    • 293 views

  5. Are these transmission parts? (8L90)

    By LordBusiness,
    • 1 reply
    • 535 views

  6. 5.3 VLOM Filter

    By bayouguy71,
    • 7 replies
    • 1k views

  7. Valvoline Restore & Protect

    By Spurshot,
    • 1 reply
    • 2.3k views

  8. Gear Swap

    By M1ck3y,
    • 9 replies
    • 652 views

  9. Dorman exhaust manifold (674-495 and 674-496) reviews

    By AFournier,
    • 0 replies
    • 456 views

  10. Preventative maintenance

    By countryguy1717,
    • 4 replies
    • 645 views
    • rav3
    • rav3

  11. How Long Do I Have Left?

    By midnightsilvy,   
    • 3 replies
    • 746 views

  12. BTR 220

    By M1ck3y,
    • 7 replies
    • 941 views

  13. AFM AC Delco / GM lifters on ebay

    By rdk1ll,
    • 2 replies
    • 349 views

  14. 2018 L83 DoD Delete = Running great, then no Compression

    By Kubs,
    • 7 replies
    • 4.3k views

  15. Cam kit parts, is this all I Need? BTR stage 2.

    By Alex Olsen,
    • 6 replies
    • 11.6k views

  16. Carven Competitor vs MBRP Single Exit

    By midnightsilvy,
    • 0 replies
    • 303 views

  17. Johnson Lifters, CAM, and Push Rods

    By Eneerge,
    • 2 replies
    • 621 views

  18. 2016 Silverado 6L80e filter seal puller

    By SCR71822,
    • 7 replies
    • 9.9k views

  19. Carven Catback?

    By midnightsilvy,
    • 0 replies
    • 238 views

  20. Shops that will do an AFM delete in or around Colorado? 1 2

    By TQUAP,
    • 16 replies
    • 2.4k views

  21. Trans flush or drain/refill + filter

    By TQUAP,
    • 5 replies
    • 816 views

  22. Fluid capacities and type

    By TQUAP,
    • 1 reply
    • 601 views

  23. Whipple LT4 pump

    By Buddy B,
    • 4 replies
    • 454 views

  24. 2018 8L90 Delayed shifting

    By Travis Crawford,
    • 1 reply
    • 623 views

  25. Whipple supercharger

    By Buddy B,
    • 4 replies
    • 598 views
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