Jump to content

Recommended Posts

Posted

Hey everyone, new here. I’m looking to bump a bit more horsepower out of my 2016 L83 Silverado. I want to cam it and do an AFM delete while I’m at it. I live in Davis county Utah and want something that will be emissions compliant and still give me a bit of an upgrade. I’ve tried doing some research on the matter but all the options quickly become convoluted and I’m wondering if anybody out there has some recommendations or can point me in the right general direction. Thank you 

Posted

If all you are worried about is tail pipe emissions, most mild camshafts when tuned correctly will still pass emissions if you are running the factory cat converters. It's not very hard for most good tuners to calibrated the engine to run with good fueling. These trucks have 3 cats, if you installed headers with hi-flow cats, good luck passing most emissions.

 

And any good tuner can turn off all the AFM codes so that you don't have check engine lights for the parts removed. The key on the newer vehicles is that all codes MUST be turned off prior to any work ever being done. If a code is not turned off and you remove the parts, it can only be disabled by the self check of the computer, so that would mean it would need to be re-installed and run through drive cycles to clear it.

 

I'm a little out of the loop on what is out there for the GEN 5 engines but with the older 5.3's, if you wanted a tame camshaft that still drove like stock with it being easy to tune, the specs were 212/218 or smaller. Everything is called a "stage" now, so like a stage 1 or 2 for those camshafts.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Latest Articles

  • Posts

    • Those can be high, as well as the big California cities. The ones that will pop your eyes out are the 395 corridor on the Eastern side of the Sierra Nevadas. Lee Vining, $7.19 for regular and $8.89 for diesel is what the Google said right now.
    • Correct.  2019-2021 model years are serviced by a different p/n.  19420611.  Recall 2021s use 19420611.   The recall engines 2022-2024 model years are serviced with 12740076.     The difference between 19420611 and 12740076 is GM changed injector size for 2022.  The injectors are smaller on 12740076 with smaller injector bores in the cylinder heads to match the smaller injectors.  So you can't install a 19420611 in a 2022-2024, and you can't install a 12740076 in a 2019-2021.     Both engines are the replacement engine p/ns that are in the L87 recall.  So both of these are the updated engines.     Here's a version of the L87 recall with the p/ns for all the parts needed.    RCRIT-25V274-7075.pdf   Note it shows 19420611 and 12740076 with an asterisk to a footnote "Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which part to order if two or more part numbers are listed for the same part, as it may vary by vehicle options."    
    • Looking for advice from this group. Took my flawless 2020 6.2 TB to an unnamed shop for routine rear brakes and oil change. Tech forgot to put oil back in after the full service and needles to say, destroyed my engine.  It’s all on their shop video so they are responsible.   I had my Chevy dealer do the analysis and they confirmed its compromised and said engine replacement. The manager said they only get GM reman engines from GM with full 3 yr warranty and the one they would put in is not same as what’s they are swapping out on 21-25 for recall.    I am looking for advice why that would be a different engine because obviously I had the good 6.2 year and replacing it has my concerns with that recall for 21-15   Also what’s the pros and cons of accepting the engine swap vs telling the shop that bricked the truck to pay up so I buy a new truck. I’m concerned about stigma resale eventually if I just decide to get rid of it after the swap or other issues showing up after the swap out.  
    • Just looked up my records.  I've never gone over 5000 miles between oil changes.  At 46K miles, I have 10 oil changes.  I hope that will help.  I also installed the disabler last year.  I've still had a few times when it didn't seem to engage (which I can tell because the start stop feature kicks in), but for the most part, I think it's working.  For some reason, GM did not include the number of cylinders running in the information screen like I had on other models.  In my Cadillac, it shows me when it's running on 4 cylinders on the fuel milage screen.  I can't find that on my '21 Denali.
    • you might read through the info on gmupfitter.com for your truck, to find a good power source.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...