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Gen III & Gen IV V8 Engines (LS-Based)

The legendary small blocks. Tech for the 4.8L, 5.3L, 6.0L. Discussion on AFM Delete kits, cam swaps, and the 4L60E/4L80E transmissions. Also covers the 2-Mode Hybrid.

8,159 topics in this forum

  1. Help!! Cluster stopped working 03 Silverado

    By Orlando Silverio,
    • 0 replies
    • 641 views

  2. 2012 5.3 oil sensor codes P0521, P0523, no oil pressure

    By GerGa,
    • 1 reply
    • 4.7k views

  3. Fuel gauge not working 2005 silverado 5.3 vortec

    By Krayten88,
    • 0 replies
    • 533 views

  4. 2001 CHEVY SILVERADO BRAKE PEDAL GOES TO FLOOR WHILE DRIVING BUT NO LEAK IN SYSTEM...

    By awbooth,
    • 5 replies
    • 9.7k views

  5. 2003 Sierra Denali

    By Forkliftfranky12,
    • 1 reply
    • 758 views

  6. 4L60E fluid change issues

    By kenny reeves,
    • 0 replies
    • 710 views

  7. How to lift suspension with Autoride?

    By GMTfour100,
    • 0 replies
    • 664 views

  8. 2013 GMC Sierra Reverse Lights will not come on

    By Blue3685,
    • 0 replies
    • 575 views

  9. 2001 Shifter Cable Problems

    By Pastorbee13,
    • 0 replies
    • 859 views

  10. Engine operating temp under extreme conditions

    By heavychevydude,
    • 3 replies
    • 721 views

  11. Starter engages when key is on

    By Waco331,
    • 1 reply
    • 528 views

  12. LH6 5.3 Intermittent Low Oil Pressure

    By Matthew Cleaver,   
    • 0 replies
    • 3.4k views

  13. Ac issue

    By Ryan Duke,
    • 4 replies
    • 707 views

  14. Replace your tiny oil filter if you give yourself “low oil pressure” 1 2

    By 08SuperSierra,
    • 22 replies
    • 54k views

  15. 02 Sierra 1500 sl ignition won’t kill truck

    By Wickedshynepolisher,
    • 1 reply
    • 413 views

  16. A few tail light problems

    By Dennis LaRossa,
    • 5 replies
    • 777 views

  17. No start no crank draining battery hot relays

    By Alvis,
    • 0 replies
    • 545 views

  18. 2008 sierra 4.3 to 5.3 swap

    By MajesticZ,
    • 2 replies
    • 3.5k views

  19. No start

    By Wiseone,
    • 4 replies
    • 702 views

  20. 4x4 shift issues

    By Jvanclieaf,
    • 0 replies
    • 665 views

  21. Left in the cold

    By Jrockk,
    • 4 replies
    • 705 views

  22. P0442 help please

    By Jaredjeandron,
    • 1 reply
    • 2.1k views

  23. 2006 gmc 4.3 to 350 small block

    By Devin Banks,   
    • 2 replies
    • 2.7k views

  24. Help please!!!

    By elleronnie,
    • 8 replies
    • 1.4k views

  25. 2003 Sierra 1500 5.3 rear end left tire binding on turns

    By Mike Cosentino,
    • 1 reply
    • 630 views
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