Active Fuel Management (AFM) in your 5.3L engine is supposed to save gas, but often it causes more problems than it solves. From annoying engine ticks to potential lifter failures, many owners decide to ditch the AFM system altogether. A delete kit replaces the problematic components and often includes a performance-enhancing camshaft. Finding the right kit can be tricky, so I’ve compiled a list of the top options to help you make the best choice.
Product Overview / Quick Summary:
- Improved Performance: Many kits include camshafts designed for better horsepower and torque.
- Reliability: Deleting AFM eliminates a common source of engine problems.
- Complete Kits: Most kits include everything needed for the swap: camshaft, lifters, gaskets, and bolts.
- Compatibility: Ensure the kit fits your specific 5.3L engine year and model.
- Installation: Professional installation is recommended for best results.
Top 5 Best 5.3 AFM Delete Kit With Cam Reviews
1. BTR Truck Norris AFM/DOD Delete Kit with Cam
The BTR Truck Norris kit is a popular choice for its well-rounded performance gains and overall reliability. It’s designed to provide a noticeable boost in horsepower and torque without sacrificing everyday drivability. This kit is ideal for trucks used for towing or daily driving where extra power is appreciated.
Pros:
- ✅ Noticeable horsepower and torque gains.
- ✅ Maintains good drivability for daily use.
- ✅ High-quality components for long-term reliability.
Cons:
- ❌ Louder than stock exhaust note (some may not like this).
- ❌ Requires a tune for optimal performance.
- ❌ Premium price compared to some other kits.
Verdict: The BTR Truck Norris kit is a great option if you’re looking for a significant power increase while maintaining good street manners. It’s a solid all-around performer.
2. Texas Speed AFM/DOD Delete Kit with Stage 2 Truck Cam
Texas Speed is a well-known name in the LS engine performance world, and their AFM/DOD delete kit with a Stage 2 Truck Cam is no exception. This kit is designed for those who want a more aggressive camshaft profile, delivering substantial power gains in the mid-range and top-end. It’s best suited for trucks that see more performance-oriented use.
Pros:
- ✅ Substantial horsepower and torque gains.
- ✅ Aggressive camshaft profile for performance enthusiasts.
- ✅ High-quality components from a reputable brand.
Cons:
- ❌ May have a slightly rougher idle than stock.
- ❌ Requires a tune for proper operation.
- ❌ Fuel economy may decrease slightly.
Verdict: If you’re after maximum power and don’t mind a slightly more aggressive driving experience, the Texas Speed kit is an excellent choice.
3. Summit Racing AFM Delete Kit with Pro LS Cam
The Summit Racing AFM Delete Kit with Pro LS Cam offers a budget-friendly option for those looking to eliminate AFM and gain some performance. This kit provides a good balance of affordability and performance, making it suitable for a wide range of users. I remember when I first started working on cars, Summit Racing was always a go-to for reliable parts at decent prices.
Pros:
- ✅ Affordable price point.
- ✅ Good balance of performance and drivability.
- ✅ Includes all necessary components for the AFM delete.
Cons:
- ❌ Camshaft is not as aggressive as some other options.
- ❌ May not provide as significant power gains as more expensive kits.
- ❌ Some users report needing to purchase additional gaskets.
Verdict: The Summit Racing kit is a solid choice if you’re on a budget and want a reliable AFM delete with a mild performance upgrade.
4. Brian Crower (BC) AFM Delete Kit with Stage 2 Cam
Brian Crower is known for its high-performance engine components, and their AFM Delete Kit with a Stage 2 Cam is designed for serious enthusiasts. This kit delivers significant power gains and is suitable for trucks built for performance. It’s a bit more involved to install, but the results can be worth it if you’re chasing horsepower.
Pros:
- ✅ Significant horsepower and torque gains.
- ✅ High-quality components designed for performance.
- ✅ Excellent for performance builds.
Cons:
- ❌ Higher price point.
- ❌ Requires a tune for optimal performance.
- ❌ Installation may be more complex than other kits.
Verdict: If you’re building a performance truck and want top-notch components, the Brian Crower kit is a great option.
5. LS2 Portworks AFM Delete Kit with Mild Truck Cam
The LS2 Portworks AFM Delete Kit with Mild Truck Cam is designed for those who want a reliable AFM delete with a slight performance bump. This kit focuses on improving reliability and drivability while providing a small increase in power. It’s a good choice for daily-driven trucks that need AFM removed without sacrificing fuel economy.
Pros:
- ✅ Improves engine reliability by deleting AFM.
- ✅ Mild camshaft profile for good drivability.
- ✅ Includes all necessary components for the swap.
Cons:
- ❌ Power gains are not as significant as other kits.
- ❌ May not be suitable for performance enthusiasts.
- ❌ Limited aftermarket support compared to larger brands.
Verdict: The LS2 Portworks kit is a good choice if you prioritize reliability and drivability over maximum power gains.
Buying Guide
Choosing the right AFM delete kit with a cam can be overwhelming. Here are some factors to consider:
- Engine Compatibility: Make sure the kit is specifically designed for your 5.3L engine year and model. Double-check part numbers and compatibility charts.
- Camshaft Profile: Consider your driving style and intended use. A more aggressive cam will provide more power but may sacrifice some drivability. A mild cam will offer a balance of performance and everyday use.
- Component Quality: Look for kits that use high-quality lifters, gaskets, and bolts. Reputable brands often provide better reliability and longevity.
- Completeness of the Kit: Ensure the kit includes all necessary components for the AFM delete, such as lifters, gaskets, bolts, and a camshaft. Some kits may require additional parts, so check the product description carefully.
- Tuning Requirements: Most AFM delete kits with a cam require a tune to optimize performance and ensure proper engine operation. Factor in the cost of a professional tune when budgeting for the project.
- Installation Difficulty: AFM delete kits require disassembling part of the engine. If you’re not comfortable with this type of work, seek professional installation.
- Read Reviews: Always check the customer reviews before purchasing a kit. These will give you insights from others’ experiences.
FAQs
Q: What does an AFM delete kit do?
A: An AFM delete kit removes the Active Fuel Management system from your engine, replacing the AFM lifters and often including a new camshaft. This improves reliability and can enhance performance.
Q: Will deleting AFM improve gas mileage?
A: It depends. Deleting AFM primarily enhances reliability. Some camshafts designed for performance might slightly reduce fuel economy. A mild camshaft might maintain or slightly improve fuel mileage.
Q: Is a tune required after installing an AFM delete kit?
A: Yes, a tune is generally required after installing an AFM delete kit, especially when replacing the camshaft. The tune optimizes engine performance and ensures proper operation with the new components.
Q: Can I install an AFM delete kit myself?
A: If you have experience working on engines, you can install an AFM delete kit yourself. However, it’s a complex process, and professional installation is recommended to ensure everything is done correctly.
Q: Will deleting AFM void my warranty?
A: Yes, deleting AFM will likely void your powertrain warranty, as it involves modifying the engine. Check with your dealer or warranty provider for specific details.
Conclusion
Choosing the right 5.3 AFM delete kit with a cam depends on your budget, performance goals, and mechanical expertise. Whether you’re looking for a budget-friendly option like the Summit Racing kit or a high-performance setup like the Brian Crower kit, there’s a solution for every need. Just remember to factor in all aspects, like tuning and installation. Hopefully, this guide helped you narrow down the best option for your truck!
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