What is better than a detailed write up? A detailed video This is a multi part, step-by-step series where we are fully deleting the Active Fuel Management (AFM) / Displacement on Demand (DOD) system from my 2014 Silverado with the 5.3L. This process is the same for most Silverados, Sierras, Tahoes, Yukons, and Suburbans made after 2006.
Note that Parts 5C - 9 are still being filmed and edited and this will be updated as they become available
Try anything shown in these videos at your own risk - we are not professional mechanics and this is only designed to be a helpful reference, not a how to guide - always check with a certified mechanic before doing any work on your vehicle and make sure you are working in a safe environment
AFM DOD Delete Part 1 - 2014 Silverado 5.3L Baseline Dyno - How Much Power Does It Make?
In this Video we are cover the baseline dyno numbers my truck made before modifying the vehicle. We will re-dyno the truck after adding the stage 1 Cam and ported heads from GPI. Once we know how much more power is made with those modifications, we will be adding the 6.2L intake manifold, throttle body, and AirRaid air intake and dynoing the truck again to see how much additional power is made. Note that we ran into some issues with the dyno run that we weren't expecting simply due to our lack of knowledge of the automatic transmission in 2014 Silverado. The dyno run was conducted from 1st through 3rd. Unfortunately, I have not yet received any additional Dyno graphs of my run except for the one shown in the video.
My Truck made an a Max HP at the wheels of 333 HP and 364 Torque in 3rd Gear. Due to transmission gearing and the rear in the vehicle, My numbers are likely around 30HP higher than they should be. It is also important to note that the vehicle is factory limited to 95MPH. From the research I have done it appears this is put in place to protect the driveshaft.
Here is another run that was shared with me that shows the full first through third pull on a 5.3 and should be useful for comparison:
AFM DOD Delete Part 2 - 2014 Silverado 5.3L L83 - What Parts Do You Need?
All of the parts for the AFM delete were purchased from Gwatney Performance Innovations (GPI) - NOT A SPONSORED VIDEO SERIES - ALL PARTS WERE PURCHASED. The components for deleting AFM are listed below in this description. Since much of the motor is being disassembled for this process, I also decided to upgrade some of the other components such as ported heads, 6.2 L86 intake manifold, throttle body, and an airaid air intake.
Parts (Amazon Affiliate Links):
GPI 2007-2013 LS DOD Delete Kit: https://cutt.ly/crwZoya
GPI 2014+ 5.3 (L83) DOD Delete Kit: https://cutt.ly/OrwZpzL
GPI 2014+ 6.2 (L86) DOD Delete Kit: https://cutt.ly/xrwZan6
These kits include options for the following components with my selection on the right:
GPI Camshaft - Low Lift Stage 1
Valve Springs - GM Perf. LT1 Springs
Lifters - Chevy Perf. set of 16
Head Gasket - Chevy Perf. Cylinder
Head Bolt Kit - ARP 6.2 Gen 5 LT1
Lifter Trays - Chevy Perf. Cam Bolt - Chevy Perf.
Harmonic Balancer Bolt - Chevy Perf.
DoD Oil Blockoff Plugs
HP Fuel Pump Lash Cap
Crank Seal - Fast Fish
RTV Sealant Trunion Upgrade - CHE Kit
GPI Tuning Services
**** Additional Parts You should consider replacing ****
Push Rods - 3/8" Hardened Pushrods for Gen 5 LT - 7.850 https://gwatneyperformance.com/product/gpi-38-hardened-pushrods/
HP Fuel Line 12677004: https://amzn.to/2XrsHf8
Timing Chain 12646386: https://amzn.to/2L4GmS1
Timing Chain Tensioner 12630107: https://amzn.to/39Hone6
ARP Exhaust Manifold Bolts 134-1104: https://amzn.to/2SzZWJN
ACDelco 41-114 Spark Plugs (x8): https://amzn.to/2vFrggX
Oil Pan Port Seal 12621086 (x2) https://amzn.to/2vFpYm7
Oil Pump / Front Oil Pan Seal 12666993: https://amzn.to/325JzHY
VLOM (Oil Valley Cover Plate) Gasket:
Valve Cover Gaskets 12619787: https://amzn.to/2HBmfIK
Exhaust Manifold Gasket 12657093 (x2)https://amzn.to/39KDaoe
Intake Manifold Gaskets 12626354 (x8)https://amzn.to/2Y1hZJg
Water Pump Gaskets 12657430 (x2)https://amzn.to/37NB2vR
Vacuum Pump Gasket 12639010: https://amzn.to/2XUvXgT
Sealers / Lube:
Thread Sealer: https://amzn.to/2HzwSMq
Blue Thread Locker: https://amzn.to/324pMc6
Red Thread Locker: https://amzn.to/321Ttup
ARP Torque Lube 100-9909: https://amzn.to/2uWFM3N
Assembly Lube: https://amzn.to/2OYVm5x
**** I am also upgrading the following components ****
6.2 Intake Manifold and Throttle Body: shorturl.at/suvI5 GPI L83
Ported Heads: shorturl.at/ejnE7
Note: the only difference between the two air intakes is the size of the connecting tube. GPI confirmed that the 5.3 connecting tube will fit the 6.2 TB with a lot of force and lubricant.
Airaid Intake 5.3 (L83): https://amzn.to/2XVCdEU
Airraid Intake 6.2 (L86): https://amzn.to/33rnnqV
AFM DOD Delete Part 3 - How to Remove 2014-2018 Silverado Sierra 5.3L and 6.2L Motor L83 L86
In this video we are showing how to pull the L83 5.3L from my vehicle and this process should be very similar to the L86 6.2L. This process should directly apply to the 2014 - 2018 Chevy Silverado and GMC Sierra.
Tools Needed (Amazon Affiliate Links):
The Milwaukee Impact Is a MUST HAVE for this job and stands up to all of the abuse I put it through. It is by far the best tool purchase I've made and has a small enough body that I can fit it just about anywhere.
Milwaukee MLW2861-20 Mid-Torque Impact Wrench (M18 Fuel 1/2") Tool Only: https://amzn.to/34k4R48
Milwaukee Impact Full Kit (With Battery): https://amzn.to/2PD06xq
Here are a few 90 Degree Drill Adapters. I have used the Dewalt one extensively - This is definitely a must have tool as well.
Dewalt 90 Degree Drill Adapter: https://amzn.to/2PD0njW
Milwaukee 49-22-8510 Right Angel Drill Attachment: https://amzn.to/2PiXYfi
ARES 70790 | Right Angle Driver: https://amzn.to/2RPYfZ0
Fly Wheel Flex Plate Holder Locking Tool: https://amzn.to/2PKNOD0 (From the Q&As on the product, it appears this will work with our L83 motors)
Harmonic Damper Puller I will add a link to one once I confirm which are compatible. I was able to use the GM puller for mine and will include that part number
2000lb Engine Stand with fold-able legs: https://amzn.to/2R3TJUp Engine Stand Mounting Bolts: https://amzn.to/2QXPBW8
AFM DOD Delete Part 4 - Complete Engine Teardown Disassembly 5.3L L83 6.2L L86 V8 Direct Injection
This is the fourth part of a multi part series where we will be fully deleting the Active Fuel Management (AFM) / Displacement on Demand (DOD) system from my 2014 Silverado with the 5.3L L83 motor. This process is the same for most Silverados, Sierras, Tahoes, Yukons, and Suburbans made after 2006. In this video we are showing how to disassemble the L83 5.3L motor and this process should be very similar to the L86 6.2L. This process will directly apply to the 2014 - 2018 Chevy Silverado and GMC Sierra models.
AFM DOD Delete - How to Install Cam Phaser Limiter VVT - Silverado Corvette Camaro L83 L86 LT1 LT4
In this video we show how to install the Phaser Limiter Kit in a 2014 Silverado with the 5.3L L83 Motor. This process will be identical or very similar on 2014+ Silverado, Sierra, and Tahoe models as well as 2014+ Corvette Stingrays and 2016+ Camaro SS models.
We recommended confirming with GPI the exact limiter you will need for your application (Affiliate Links).
COMP Cams 5456 GM Gen IV VVT (2007 - 2008) Cam Phaser Kit: https://amzn.to/351BkNh
COMP Cams 5460 GM Gen IV VVT (2009 - Present) Cam Phaser Limiter Kit: https://amzn.to/37khJJL
GPI – Gen 5 LT VVT Cam Phaser Limiter Kit (0 Degree): https://cutt.ly/Qrr7f3K
GPI – Gen 5 LT VVT Cam Phaser Limiter Kit (4 Degree): https://cutt.ly/Qrr7hzm
How To Upgrade GM Trunnions - CHE Precision Trunnions
In this video we show how to the OEM GM Trunnions on 2014 Silverado with the 5.3L L83 Motor. This process will be identical or very similar on 2014+ Silverado, Sierra, and Tahoe models as well as 2014+ Corvette Stingrays and 2016+ Camaro SS models with the LS and LT motors.
CHE Trunnion Upgrade Kit for LS/Gen V LT: https://cutt.ly/Brun8Ee
AFM DOD Delete Part 5 - Cam and Head Install and Engine Assembly 5.3L L83 6.2L L86 V8
In this video we are showing how to reassemble the L83 5.3L motor and this process should be very similar to the L86 6.2L. This process will directly apply to the 2014 - 2018 Chevy Silverado and GMC Sierra models.
Useful Write-Ups and Videos that we referenced in creating this series:
Camaro DOD Delete Write Up: https://www.camaro6.com/forums/showthread.php?t=516717
Corvette DOD Delete Write Up: https://www.corvetteforum.com/forums/c7-tech-performance/4011956-how-to-lt1-camshaft-and-cylinder-head-install-guide.html
Tahoe DOD Delete Video Series: https://youtu.be/uhzLuJsTD-Y