Do you love the power of your 5.3L engine but hate the constant worry of lifter failure? Many truck owners know the Active Fuel Management (AFM) system can lead to expensive mechanical issues over time. While this system helps with fuel economy, it often sacrifices long-term engine reliability. Choosing the right delete kit and camshaft upgrade is the ultimate solution to protect your truck and boost its performance.
However, finding the perfect combination can feel overwhelming. With so many parts, brands, and technical specs on the market, it is easy to feel lost. You might worry about picking the wrong parts or ending up with a rough idle that makes your daily drive uncomfortable. You need a setup that balances raw power with the smooth reliability you expect from your vehicle.
In this post, we take the guesswork out of your build. We will break down exactly what you need to look for when shopping for a 5.3 AFM delete kit and cam package. You will learn how to choose the right components to increase your horsepower while permanently removing those troublesome factory parts. By the end of this guide, you will have the confidence to choose the best upgrade for your engine. Let’s dive into the details and get your truck running better than ever.
Top 5.3 Afm Delete Kit With Cam Recommendations
- 🚗【Compatible Vehicles for Chevrolet】: for 2007-2013 Chevrolet Avalanche, 2007-2013 Chevrolet Silverado 1500, 2007-2014 Chevrolet Suburban 1500, 2007-2014 Chevrolet Tahoe, 2005-2006 Chevrolet Trailblazer ext, 2007-2008 Chevrolet Trailblazer
- 🚗【Compatible Vehicles for GMC】: for 2005-2009 GMC Envoy XL 5.3L, 2007 GMC Envoy Xuv 5.3L, 2007-2009 GMC Envoy 5.3L, 2007 GMC Sierra1500 5.3L, 2005-2013 GMC Sierra1500 5.3L, 2010-2013 GMC Sierra 5.3L, 2007-2014 GMC Yukon XL 5.3L, 2008-2014 GMC Yukon 5.3L
- 🚗【Other compatible Vehicles】: for 2007 Buick Rainier 5.3L, 2005-2006 Isuzu Ascending 5.3L, 2007-2009 Saab 9-7X 5.3L
- 🚗【Check OE number】: AFM kit is of superior quality, complete accessories can replace OE number--17122490, 17120735, 12499225, 12576400, 12648846,12569256, 12571595, 12632143, 12619820, 12639516, TCS45993, 12557840, 12625436, MC1394, 5.3L V8 Engine 5328CC 325CID 16Values
- 🚗【OEM Fit】Our full cylinder engine gasket set and camshaft kits are rigorously tested and manufactured using advanced manufacturing processes to meet OE specifications to ensure a precise fit, and feature a precise OEM design for easy installation. Engine cylinder head gasket kits require no drilling or cutting, just disassemble the valve cover
- 5.3 Cam and lifter kit fit for 2005-2007 Buick Rainier 5.3L, for 2007-2013 Chevrolet Avalanche 5.3L, for 2007 Chevrolet Silverado 1500 Classic 5.3L, for 2005-2013 Chevrolet Silverado 1500 5.3L, for 2007-2013 Chevrolet Suburban 1500 5.3L, for 2014 Chevrolet Suburban 5.3L
- AFM DOD disable kit for 2007-2013 Chevrolet Tahoe 5.3L, for 2005-2006 Chevrolet Trailblazer Ext 5.3L, for 2006-2008 Chevrolet Trailblazer 5.3L, for 2005-2006 GMC Envoy Xl 5.3L, for 2005 GMC Envoy Xuv 5.3L, for 2005-2009 GMC Envoy 5.3L
- Engine rebuild kit for 2007 GMC Sierra 1500 Classic 5.3L, for 2005-2013 GMC Sierra 1500 5.3L, for 2010-2013 GMC Sierra 5.3L, for 2007-2013 GMC Yukon Xl 1500 5.3L, for 2008-2013 GMC Yukon 5.3L, for 2005-2006 Isuzu Ascender 5.3L, for 2005-2009 Saab 9-7x 5.3L
- AFM DOD disable kit include 1 bolt camshaft, 16 non afm ls7 valve lifters with plastic guides, ls gen 4 valley cover plate with gasket and bolts, MLS head gaskets, cylinder head bolt set, crankshaft bolt, front timing cover gasket set, intake manifold gasket (metal)
- NOTE: Professional installation is recommended
- 【Package Include】 1*Camshaft；valley plate；MLS head gaskets；A set head bolt set；16*valve lifters; Front timing cover gasket set
- 【Fits For】 The AFM disabled kit compatible with 07-13 Chevrolet Avalanche/Suburban 1500/Tahoe/GMC Yukon XL 1500, 07 Silverado 1500 CLASSIC/GMC Sierra 1500 CLASSIC , 05-13 Silverado 1500/GMC Sierra 1500, 14 Chevrolet Suburban, 05 06 Trailblazer EXT/GMC Envoy XL/Isuzu Ascender, 06 07 08 Trailblazer, 2005-2009 Saab 9-7x/GMC Envoy, 08-13 GMC Yukon, 10-13 GMC Sierra. Fits the engine: 5.3L 5328CC 325CID V8 OHV Naturally Aspirated, 5.3L 5328CC 325CID V8 FLEX OHV Naturally Aspirated, 5.3L 5328CC 325CID V8 ELECTRIC/GAS OHV Naturally Aspirated.
- 【Replace OE Number】12625437, 17122490, 17120735, 12499225. The 5.3L camshaft kit made of high quailty steel to guarantee long-term dependability and increased rigidity. Guaranteed for long-term use.
- 【Premium Quality】Our AFM camshaft disabled kit are manufactured from high-strength steel, with coating adds corrosion protection, have trustworthy performance. Long life-span matters, that is why all of our camshaft undergo strict quality control.
- LIFETIME WARRANTY IF INSTALLED BY A CERTIFIED MACHINIST
- FITMENT: Camshaft and lifter kit fit for 2014-2021 GM Chevrolet Gen V L83 5.3L Engine
- PACKAGE: Overhaul kit include gen v non afm camshaft, ls7 style lifters, ls2 lifter trays, mls head gaskets, gen v head bolt set, seals, as pictures show
- REPLACE PART NUMBER: 12619823, 17122490, 17120735, 12499225, 12576400, HS26744PT
- FEATURE: Application-specific design ensures correct fitment
- ENHANCE YOUR DRIVING EXPERIENCE WITH THIS AFM DISABLER: Keep for GM V6/V8 engine in full-cylinder mode for more power and a smoother ride,Chip upgrade for temperature control, enhancing engine stability and preventing engine overload; this AFM/DFM disabler improves performance without altering factory emissions controls, providing a responsive drive for towing or climbing
- NO CODING OR COMPROMISE: Just plug this AFM disabler into your OBD-II port for immediate operation; it requires no ECU modification, avoids battery drainage, and has zero long-term risk to your engine, making it a clean and simple DOD delete 5.3 kit solution
- GUARANTEED COMPATIBILITY: This afm/dfm disabler is compatible with most GM V6 and V8 engines, including Chevrolet, GMC, Cadillac, Buick, Holden, Pontiac, Saturn, Isuzu, and Suzuki; note it is incompatible with 2019+ Silverado/Sierra models with 5.3L/3.6L engine and 10-speed transmission or 2022 refresh truck/SUV models,All models are displayed in the details page, please click Ctrl+F to query.
- INTUITIVE OPERATION AND PEACE OF MIND: Stay informed with real-time indicator lights for performance feedback; unplug when not in use for extended periods, and enjoy the benefits of this AFM delete Chevy 5.3 kit that restores factory settings upon removal
- DEDICATED SUPPORT AND WARRANTY: Our 24/7 customer service team is ready to assist; benefit from a one-year free return policy for non-man-made damage, ensuring a worry-free purchase with this AFM/DFM disabler designed to eliminate engine shaking and low-end torque issues
- Introducing the CHOPacabra cam! This is a nasty little beast of cam. Designed to work with LS6 valve springs and a factory torque converter. If you're looking for that mean, snarling sound and performance that will leave your opponent second guessing what they just saw...this is it!
- Texas Speed's line of Low Lift camshafts feature proprietary lobe profiles that are designed to utilize the factory GM LS6 beehive valve springs, making them the most affordable cam package on the market! These lobe profiles and the mild spring pressures required for the low lift camshafts also make them very easy on valvetrain parts, providing the reliability needed for daily driven vehicles that rack up a lot of miles.
- Our kit options eliminate the guesswork and include: Camshaft Only: Texas Speed Chopacabra Camshaft by itself Camshaft, Springs And Hat Seals: TSP Chopacabra Camshaft, LS6 Beehive Valve springs, and MM tophat valve seals
- Camshaft, Springs, Seals And Gasket Kit: TSP Chopacabra Cam, LS6 Beehive springs, MM Valve seals, MM Timing Cover Gasket, MM Water Pump Gaskets, MM Crankshaft Damper Seal, and MM Crankshaft Damper Bolt Camshaft, Springs, MM Seals, MM Gaskets and Pushrods: TSP Chopacabra Cam, .560" Beehive Springs, MM Valve Seals, MM Timing Cover Gasket, MM Water Pump Gaskets, MM Damper Seal, MM Crankshaft bolt, plus 7.400" long 5/16" Diameter Chromoly Pushrods Please note: DOD/AFM equipped engines will require a DOD/AFM delete VVT engines will require a VVT delete kit. If installing in an engine originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required
- Texas Speed TSP CHOPacabra Specs: 214/222 .550"/.550" 108LSA, 3 Bolt Pattern
- 【Compatible Vehicles for Chevrolet】: for 2007-2013 Chevrolet Avalanche, 2005-2013 Chevrolet Silverado 1500, 2007-2014 Chevrolet Suburban 1500, 2007-2014 Chevrolet Tahoe, 2005-2006 Chevrolet Trailblazer ext, 2007-2008 Chevrolet Trailblazer
- 【Compatible Vehicles for GMC】: for 2005-2006 GMC Envoy XL 5.3L, 2005 GMC Envoy Xuv 5.3L, 2005-2009 GMC Envoy 5.3L, 2007 GMC Sierra1500 5.3L, 2005-2013 GMC Sierra1500 5.3L, 2010-2013 GMC Sierra 5.3L, 2007-2014 GMC Yukon XL 1500 5.3L, 2008-2013 GMC Yukon 5.3L
- 【Other compatible Vehicles】: for 2005-2007 Buick Rainier 5.3L, 2005-2006 Isuzu Ascending 5.3L, 2007-2009 Saab 9-7X 5.3L
- 【Check OE number】: NON-AFM kit is of superior quality, complete accessories can replace OE number--TCS45993 12557840 12499225 12625437
- NON AFM Camshaft Specification: Type: hydraulic roller, intake duration .050": 199, exhaust duration .050": 191, valve lift int (in.): .466, valve lift exh (in.): .457, rocker ratio: 1.7, lobe separation: 114, camshaft gear attachment: 1-bolt
- Fitment1: For Chevrolet Avalanche 5.3L 2007 - 2013; For Chevrolet Silverado 1500 5.3L 2005 - 2013; For Chevrolet Suburban 5.3L 2014; For Chevrolet Suburban 1500 5.3L 2007 - 2013; For Chevrolet Trailblazer 5.3L 2006 - 2008; For Chevrolet Tahoe 5.3L 2007 - 2013; For Buick Rainier 5.3L 2005 - 2007; For Isuzu Ascender 5.3L 2005 - 2006.
- Fitment2: For GMC Envoy 5.3L 2005 - 2009; For GMC Envoy Xuv 5.3L 2005; For GMC Envoy Xl 5.3L 2005 - 2006; For GMC Sierra 5.3L 2010 - 2013; For GMC Sierra 1500 5.3L 2005 - 2013; For GMC Yukon 5.3L 2008 - 2013; For GMC Yukon Xl 1500 5.3L 2007 - 2013; For Saab 9-7x 5.3L 2005 - 2009;
- OE Part Number: Camshaft:12625437; Valve Stem Seal:12482063; ValveLifter:12564012,12576400,17122490,25341990,8171224900,HT2148,HT2281,L2148; Timing Cover Gasket Kit:TCS45993, 12633904, 12589016,ES73010; Timing Chain Kit:12591689,12646386,S827,12556582,12626407,12585997; Oil Pump:M295HV,12696357,12586665; Valley Cover Plate Kit:12598832, 12610141; Head Bolt:ES72220, ES72390; Head Gasket Kit:12498544,12565390,12573949,261721,12617944,12637683,89060436,12617944;
- 12625437 Camshaft Specs: ①Type：Hydraulic Roller ②Intake Valve Lift:.466" ③ Ehaust Valve Lift:.457" ④Intake Duration @.050"：199° ⑤Ehaust Duration @.050"：191° ⑥Lobe Separation：114° ⑦ Rocker Ratio: 1.7 ⑧Cam Gear Attachment:1-Bolt.
- Non-AFM Kit Package Includes: 1*Camshaft; 1*Valley Cover Gasket Set; 16* Valve Lifters; 4*Lifter Trays w/ Bolt; 1*Timing Chain Kit; 1*Front Timing Cover Gasket Set; 1*Valley Cover Plate Kit; 1*M295HV Oil Pump; 2*Head Gasket; 2*Valve Cover Gasket; 16*Valve Stem Seal; 1*Exhaust&Intake Manifold Gasket Set; 1*Balancer Bolt; 1*Other Gasket & O-ring Set; 30*Cylinder Head Bolts (20 long bolts,10 small bolts);
The Ultimate Guide to 5.3 AFM Delete Kits with Cam
If you own a GM vehicle with a 5.3L engine, you might worry about the Active Fuel Management (AFM) system. This system can cause lifter failure and oil consumption issues over time. Many owners choose to perform an “AFM delete.” Adding a performance camshaft during this process turns your truck into a much stronger machine. This guide helps you pick the right kit for your build.
Key Features to Look For
A complete AFM delete kit should include everything you need to remove the failing parts. Look for a kit that includes new LS7-style lifters, which are much more reliable. You also need a non-AFM valley cover, head gaskets, and head bolts. A performance camshaft is the star of the show. Choose a cam that matches your driving style. A mild cam adds power for towing, while a “lopey” cam gives you a deep, aggressive exhaust sound.
Important Materials
Quality matters when you work on an engine. High-grade steel is necessary for the camshaft to prevent wear. Look for lifters made from hardened steel to handle the stress of high RPMs. Always choose gaskets made from multi-layer steel (MLS). These provide the best seal and prevent coolant leaks. Cheap plastic or paper gaskets will fail quickly under engine heat.
Factors That Improve or Reduce Quality
Quality increases when the kit includes name-brand components. Kits that use OEM-spec hardware often last longer than cheap aftermarket parts. Precision machining on the camshaft lobes improves engine smoothness and power. Quality decreases if the kit omits small parts like O-rings or valley cover bolts. You should also check if the kit includes a new timing chain and oil pump. Reusing old, stretched parts can cause your new engine build to fail early.
User Experience and Use Cases
Most drivers notice an immediate difference after the install. The engine sounds more powerful and responds faster when you press the gas pedal. This upgrade is perfect for truck owners who want better reliability and more towing power. If you enjoy working on cars, this is a great weekend project. However, it is a complex job. You will need to remove the cylinder heads and the front timing cover. If you are not an experienced mechanic, consider having a professional shop perform the installation.
10 Frequently Asked Questions
Q: Will an AFM delete improve my gas mileage?
A: You might see a small change, but this kit is mostly for performance and reliability, not fuel savings.
Q: Do I need a custom tune after installing this?
A: Yes. A custom computer tune is mandatory to tell the engine that the AFM system is gone and to help the new camshaft run correctly.
Q: Can I install this without removing the cylinder heads?
A: No. You must remove the cylinder heads to swap the lifters, as they are located underneath.
Q: What is the benefit of a “lopey” cam?
A: A lopey cam provides a distinct, aggressive exhaust sound that many enthusiasts love, along with increased high-end power.
Q: Are these kits compatible with all 5.3L engines?
A: Most kits work for GM Gen IV engines, but always check your specific engine code before you buy.
Q: How long does the installation take?
A: An experienced mechanic usually takes 10 to 15 hours. A beginner might take a full weekend or longer.
Q: Should I replace the oil pump while I am in there?
A: Yes. It is smart to upgrade to a high-volume oil pump while the front of the engine is open.
Q: Will this void my warranty?
A: If your truck is still under a factory warranty, this modification will likely void it.
Q: Do I need special tools for this job?
A: You will need a torque wrench, a harmonic balancer puller, and a valve spring compressor.
Q: Is the truck safe to drive immediately after the install?
A: No. Do not drive the truck until you have uploaded the custom tune to the computer.