Engines & Drivetrain

2,741 topics in this forum

1. P0430 Code after Lifter failure

   By EPIC CAJUN, January 9, 2019
   • 11 replies
   • 8.9k views
   • 
   • EPIC CAJUN
   • January 10, 2019

2. Header install help 1 2

   By bmp5484, January 7, 2019
   • 20 replies
   • 7k views
   • 
   • bmp5484
   • January 10, 2019

3. 5.3 build

   By Grip&go41, January 9, 2019
   • 4 replies
   • 2.3k views
   • 
   • Grip&go41
   • January 9, 2019

4. Sierra Denali 6.2L Upgrades Video

   By DenaliX14, January 7, 2019   

   • l86
   • truck
   • (and 3 more)

     Tagged with:

     • l86
     • truck
     • 1500
     • mods
     • list
   • 0 replies
   • 1.1k views
   • 
   • DenaliX14
   • January 7, 2019

5. 2017 6.0 Intake part identification, For the love of God

   By EZTundra77, January 6, 2019   

   • intake
   • 7 replies
   • 857 views
   • 
   • SierraHD17
   • January 7, 2019

6. Fuel consumption at idle

   By Cash214, January 5, 2019
   • 5 replies
   • 11.6k views
   • 
   • MaverickZ71
   • January 6, 2019

7. Quotes for exhaust 1 2

   By jakobkindt, October 13, 2018
   • 24 replies
   • 3.2k views
   • 
   • JCKustoms
   • January 5, 2019

8. Comp Cam Suggested 624-512-13. Anyone Running this Cam?

   By Meethead, December 15, 2016
   • 5 replies
   • 3.3k views
   • 
   • fehrguy.11
   • January 4, 2019

9. Re-flash to stock help needed

   By ParadiseLost, January 1, 2019
   • 3 replies
   • 2.2k views
   • 
   • qwank
   • January 3, 2019

10. Stock muffler flapper inside pic

    By 2018GMC, December 30, 2018
    • 10 replies
    • 3.1k views
    • 
    • 3tspapat
    • January 2, 2019

11. Single outlet or dual outlet muffler

    By Grjfer, December 30, 2018
    • 4 replies
    • 787 views
    • 
    • Jaychevy81
    • January 2, 2019

12. 4.3 with a Deep Exhaust

    By NorthEast, December 31, 2018
    • 2 replies
    • 3.1k views
    • 
    • Nitrousbird
    • January 1, 2019

13. Stock Manifold/Collector Flange

    By 300 Blackout, January 1, 2019
    • 0 replies
    • 385 views
    • 
    • 300 Blackout
    • January 1, 2019

14. Belt or starter

    By Denmark43, October 17, 2018
    • 7 replies
    • 844 views
    • 
    • Sierra Dan
    • December 31, 2018

15. 2018 Sierra - question before pulling the trigger 1 2

    By jtheruler79, December 29, 2018
    • 17 replies
    • 1.9k views
    • 
    • mookdoc6
    • December 31, 2018

16. Acceleration 1 2

    By SilveradoSaver, June 28, 2017
    • 22 replies
    • 5.2k views
    • 
    • boyzzsandtheirtoys33
    • December 31, 2018

17. 19 trans same as 16?

    By jamin87ss, December 27, 2018
    • 11 replies
    • 1.3k views
    • 
    • SS502
    • December 30, 2018

18. Legato exhaust

    By Brewiz, December 30, 2018
    • 0 replies
    • 526 views
    • 
    • Brewiz
    • December 30, 2018

19. Grade brake?

    By ammoaddict, December 24, 2018
    • 10 replies
    • 1.6k views
    • 
    • TRKLGND
    • December 29, 2018

20. Can I get some input on this cat back?

    By Fatherof2, December 9, 2018
    • 4 replies
    • 1.1k views
    • 
    • 3tspapat
    • December 28, 2018

21. Exhaust

    By Keone78, December 20, 2018
    • 12 replies
    • 1k views
    • 
    • techsan15
    • December 26, 2018

22. Exhaust help

    By reihart, December 11, 2018
    • 12 replies
    • 1.2k views
    • 
    • TRKLGND
    • December 24, 2018

23. 2014 4.3 2 wheel drive regular cab

    By 2014silveradobr, December 16, 2018   

    • rattle
    • little acceleration
    • 8 replies
    • 982 views
    • 
    • qwank
    • December 23, 2018

24. Best exhaust for 6.2 1 2 3

    By Je_suis_prest, March 17, 2016
    • 37 replies
    • 47.5k views
    • 
    • GMCTruckster
    • December 22, 2018

25. Headers/Cats/CAI shifting sound (whoosh?)

    By mbowen89, December 16, 2018
    • 10 replies
    • 1.7k views
    • 
    • M1ck3y
    • December 22, 2018