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2014-2019 Engine, Driveline, & Exhaust

Technical Discussion surrounding the 5th generation of small block engines, driveline, 6/8/10 speed transmissions, and slew of factory and performance exhausts.
Includes direct injection, active fuel management, and the EcoTec3 4.3L V6 (LV3), 5.3L V8 (L83), 6.2L V8 (L86), and LB8 eAssist gas engines.

2,649 topics in this forum

  1. ? On t.s.b bulletin

    By Scott1212,
    • 9 replies
    • 5.7k views

  3. notes about DIY trans fluid change/flush on 8sp

    By hypntyz,
    • 9 replies
    • 1.9k views

  4. Harmonic balancer bolt

    By Blackwidow_Chevy,
    • 13 replies
    • 17.6k views

  5. 2018 1500 rear axle swap 4.3l 8.6" on to 5.3L 9.5" any reason I can't?

    By doubeleive,
    • 3 replies
    • 884 views

  6. 2014 Sierra 6.2 Dyno 1 2 3

    By Jjblur2003,
    • 32 replies
    • 9.7k views

  7. Beating a dead horse, exhaust.

    By 2015 High Miler,
    • 5 replies
    • 1.5k views

  8. P0420

    By Black Mamba,
    • 9 replies
    • 1.2k views

  9. DIY stainless catback

    By langston1726,
    • 9 replies
    • 3.1k views

  10. L83 5.3L Flex fuel conversion with Dyno sheets. Followed with tune and more dyno sheets. 1 2 3 4

    By Alec Kerchner,
    • 59 replies
    • 24.4k views

  11. Costco oil?? 1 2

    By Grumpytoast92,
    • 15 replies
    • 4.8k views

  12. 2014 GMC Sierra 5.3l 6 Speed Delayed Shifting

    By Ryan Amey,   
    • 2 replies
    • 4.1k views

  13. 2018 silverado 5.3 LT z81 Texas edition

    By Jones Cody 8020,
    • 3 replies
    • 1.7k views

  14. L83 5.3L E85 conversion. OEM fuel lines, no splice. Warning inside.

    By Alec Kerchner,
    • 1 reply
    • 1.7k views

  15. 2014 Silverado 5.3 L83 bad lifter

    By 15foxrzr,
    • 4 replies
    • 2.7k views

  16. 2015 Silverado 5.3 Engine Rebuild

    By rab356,
    • 7 replies
    • 2.5k views

  17. Front and rear differential service maintenance schedule

    By askibum02,
    • 12 replies
    • 24.8k views

  18. 2018 V-6 GDI and fuel pressure sensor

    By Mike red hot silverado,
    • 1 reply
    • 330 views

  19. 2015 8L90 Trans Fluid Temp Sensor & Harness

    By SizzlingSkilletz,   
    • 1 reply
    • 4.1k views

  20. Need Advice on Aftermarket Cam Options 1 2

    By Truckboattruck,
    • 24 replies
    • 2.4k views

  21. Circle D convertor 1 2

    By 6.2Midnight,
    • 15 replies
    • 2.2k views

  22. Leaking valve cover gasket?

    By Gary Shull,
    • 3 replies
    • 6.6k views

  23. Startup Tick

    By gburns,
    • 4 replies
    • 1k views

  24. Diablo Sport - increasing trans pressure

    By 14burrito,
    • 4 replies
    • 1.3k views

  25. AFM Federal Class Action Law Suit Filed 2104-2021 GM Engines

    By MilwPaul,
    • 1 reply
    • 4.2k views

  26. Pinging on 87 1 2

    By dvzzz,
    • 19 replies
    • 7.3k views


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