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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.

2,612 topics in this forum

  1. Engine swap

    By Dubwatson86,
    • 2 replies
    • 1k views

  3. 6L80E thermostatic bypass valve replacement and Bulletin #21-NA-199

    By Andrew18,   
    • 7 replies
    • 24.3k views

  4. Mid-Length Headers

    By rlcole321,
    • 8 replies
    • 1.5k views

  5. AFM Delete - Which kit is preferred?

    By Nickhop,
    • 3 replies
    • 1.6k views

  6. 2015 GMC Sierra 1500 DOD Lifter Replacement

    By mamarinelli,
    • 5 replies
    • 1.5k views

  7. 100,000 Mile Spark Plugs

    By TheRiver,
    • 3 replies
    • 748 views

  8. TRANSMISSION RANGE SWITCH

    By BlkDenali6.2,
    • 0 replies
    • 446 views

  9. 2014 Silverado Transmission/Torque Converter help

    By jwoody28,
    • 4 replies
    • 957 views

  10. click, no start

    By josney,
    • 2 replies
    • 482 views

  11. Swapping an L86(6.2) into a 5.3 (L83)

    By Gavin Faulkner,
    • 3 replies
    • 3.1k views

  12. 2016 Silverado LT - is my transmission going? Maybe my TC?

    By InsuredByBeretta,
    • 5 replies
    • 1.2k views

  13. Service 4wd message 2017 1500 Silverado

    By Cd264,
    • 2 replies
    • 507 views

  14. Statistically, How Prevalent Are Transmission, AFM, and Lifter Issues?

    By Muley,
    • 7 replies
    • 1.3k views

  15. Headers: long tube vs shorty's

    By hordy240,
    • 2 replies
    • 924 views

  16. Salvaging a L86 6.2L V8

    By CadillacLuke24,
    • 14 replies
    • 2.3k views

  17. 5.3L normal idle rpm 1 2

    By roweac,
    • 23 replies
    • 74.7k views

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

    By greenoliver1,
    • 31 replies
    • 12.9k views

  19. Transmission Thermostat Delete Pros vs. Cons 1 2 3 4 14

    By Eddie 70,
    • 202 replies
    • 107.7k views

  20. L83 DoD Delete with L86 cam questions

    By UrbanRage,
    • 4 replies
    • 1.9k views

  21. 2014 GMC Sierra 1500 5.3 with 220k miles

    By teddyb1776,
    • 14 replies
    • 1.2k views

  22. 2015 Silverado - Burning Oil (Active Fuel Management)

    By Smith035,
    • 7 replies
    • 7.2k views

  23. 2018 gmc sierra with e assit

    By kinser,
    • 2 replies
    • 538 views

  24. Trailer break system/ truck turning off

    By Jhh1210,
    • 3 replies
    • 518 views

  25. Lv3 and afm

    By WranglerMike,
    • 2 replies
    • 605 views

  26. Trans cooler

    By BS2017,
    • 3 replies
    • 604 views


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