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SixTwo Z71

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About SixTwo Z71

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  • Location
    Springfield, IL
  • Drives
    2014 Silverado LTZ Z71 6.2
  1. Mine are factory, bow tie in the center, 22”. Never seen them in black from the factory
  2. Loud ticking

    Got my truck back today. Tech confirmed cylinder #4, intake push rod was bent, replaced. No other issues noted. Tick is now gone. Any ideas why this push rod may have bent, specifically without lifter failure? Thanks
  3. Loud ticking

    2014, Silverado, 6.2 Z71, at approx 36k miles in January of 2017 I noticed a ticking from my engine bay, passenger side, which was never present before. Couldn’t hear it from inside the truck but from the outside it was definitely noticeable. No codes or noticeable change in performance during my daily commute. Local chevy dealer had it for a few days, and I can’t find the documents right now but they replaced a bent push rod and I think 2 lifters, I believe cylinder #4 was the main culprit. No more tick after the warranty repair. Fast forward to 12/18/17, 48k miles and the tick is back. Currently at the dealer AGAIN waiting for an answer to confirm what I believe I already know. Also potentially of note, dealer changed the oil approx 3 weeks ago. Update coming soon... hopefully.
  4. Pulled the trigger on the muffler delete last week. I left the flapper and resonator in place. (Could always be removed later, but doubt I will). Sound was exactly what I was looking for, actually sounds like a 6.2L V8 now. I definitely would not want it any louder, but it is certainly not too loud for neighborhood travel if you keep it below about 2k rpm. However, a hard acceleration would likely wake the neighbors. Inside the cab is very comfortable with only minimal increased volume, the noise cancellation of these trucks is amazing. After putting ~200 miles on the new set up at various speeds I'm comfortable saying absolutely no drone in V4 or V8. And to my surprise, the helicopter V4 noise is gone. As far as performance, I don't feel much has changed. Haven't done a full throttle acceleration from a stop or slow rolling to say for sure about lower end, but upper rpms feel about the same. MPGs virtually unchanged during my approximately 50/50 city/hwy drive. Overall I am very happy and do not plan on changing anything.
  5. Stock exhaust

    5.3 or 6.2L?
  6. Wanted 2014 6.2 exhaust tip

    Looking for a 6.2 exhaust tip only. Anyone have one laying around? For a 2014 Silverado, 6.2L only. Thanks.
  7. Thanks Ctay, And for you and others that have simply just deleted the muffler, did you notice any change in performance? Good, bad, or the same? Also, does anyone see any potential problem with this muffler delete set-up in the long term?
  8. Now that you've had this set-up for about a year, what are you thoughts? Still like it? Any problems? Is there any reason you chose to clamp the flapper open?

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