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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. Looking for transmission info

    By StuartinBakerLake,
    • 1 reply
    • 1.8k views

  2. P0131 only under certain conditions

    By stevedenali,
    • 1 reply
    • 1k views

  3. Misfire problem!!!!!!!

    By Fjd2000,
    • 2 replies
    • 885 views

  4. Automatic Trans Slipping in 3rd gear.

    By Tipsey Hussle,   
    • 5 replies
    • 7k views

  5. 2007 Tahoe 5.3. Misfire

    By jacobsprad,
    • 1 reply
    • 1.1k views

  6. Interior dome lights won't turn off!

    By GrumpyGhost,
    • 7 replies
    • 19.3k views

  7. No crank, fuel gauge reading empty, no communication with obd port

    By Kyle27,
    • 0 replies
    • 704 views

  8. LMG (5.3l) swap to L9H (6.2l)

    By tahoeppv,   
    • 7 replies
    • 20.8k views

  9. 02 Sliverodo starter will not disengage after starting

    By 3DTim,
    • 1 reply
    • 748 views

  10. Gmc loss of power

    By SnowWhite,
    • 1 reply
    • 652 views

  11. Another Missfire Thread

    By Kruck88,
    • 2 replies
    • 777 views

  12. Production #s for 2007.5 Vmax

    By 07.5Vmax,
    • 0 replies
    • 539 views

  13. 99 Silverado 5.3 vortec Truck missfire 4000 to 6000 rpm po332 po171 p0174

    By Benjamin Fuller,
    • 4 replies
    • 797 views

  14. Weirdly Low Air Flow from all Vents.

    By Joshua Orton,
    • 3 replies
    • 1.4k views

  15. Wooden Flatbed

    By ShannonW,
    • 1 reply
    • 728 views

  16. Obs swap

    By Cookdogg,
    • 1 reply
    • 2k views

  17. Unserviceable fuel filter?!?

    By Scubasteve6988,
    • 2 replies
    • 1.2k views

  18. Thread Sealer on Actuator to Front Differential?

    By Smitty27,
    • 1 reply
    • 2.6k views

  19. Stubborn U0107 error that won't go away!

    By Derick Thomas,
    • 0 replies
    • 1.1k views

  20. Are gt5 and gt4 rear ends interchangeable?

    By Domes68,   
    • 3 replies
    • 24.4k views

  21. Shaking

    By Ryno1985,
    • 5 replies
    • 945 views

  22. Shifter cable keeps snapping

    By T- Patt,
    • 1 reply
    • 697 views

  23. Cooling and ignition system

    By Danny Fowler,
    • 1 reply
    • 516 views

  24. 09 Silverado Hard Shift

    By Russell Brandon,   
    • 0 replies
    • 5.9k views

  25. Changing rear gear ratio 1 2

    By jorgejohnson72,
    • 15 replies
    • 1.9k views
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