Upgrading your cam is one of the best ways to wake up a 5.3 LS motor. These engines are known for their reliability, but the stock cam often leaves a lot of performance on the table. Choosing the right cam can drastically improve horsepower, torque, and overall driving experience. I’ve spent countless hours researching and testing different cams, and I’m excited to share my top picks for getting the most out of your 5.3 LS.
Here’s a quick rundown of the cams we’ll be covering:
- Brian Tooley Racing (BTR) Stage 2 Truck Cam: Excellent all-around performance for trucks.
- Texas Speed & Performance (TSP) Torquer V2 Cam: Great for street/strip builds seeking maximum power.
- Summit Racing SUM-8703R1 Camshaft: Budget-friendly option with noticeable gains.
- Chevrolet Performance ASA Cam: A reliable and proven performance upgrade.
- Edelbrock Performer RPM Camshaft Kit: Matched components for easy installation and optimized performance.
Top 5 Best Cam For 5.3 LS Motor Reviews
1. Brian Tooley Racing (BTR) Stage 2 Truck Cam
The BTR Stage 2 Truck Cam is a fantastic choice for anyone wanting a significant power boost in their 5.3L truck without sacrificing drivability. It’s designed to provide a broad torque curve, making it ideal for towing, hauling, and everyday driving. I’ve heard from many users who were amazed at how much stronger their trucks felt after installing this cam.
Pros:
- ✅ Noticeable increase in low-end and mid-range torque.
- ✅ Maintains good street manners and drivability.
- ✅ Works well with stock torque converters.
Cons:
- ❌ May require a tune for optimal performance.
- ❌ Slight lope at idle, which some may not prefer.
- ❌ Can be a bit noisy compared to the stock cam.
Verdict: This cam is a top pick for truck owners looking for a balance of power and usability. It’s a solid upgrade for improved towing and daily driving.
2. Texas Speed & Performance (TSP) Torquer V2 Cam
The TSP Torquer V2 Cam is for those who want to maximize horsepower in their 5.3L. This cam is designed for street/strip applications and delivers impressive gains in the mid-range and top-end. I remember a friend putting this cam in his 5.3L powered Camaro, and the difference was night and day.
Pros:
- ✅ Significant horsepower gains, especially in the mid-range.
- ✅ Aggressive sound and noticeable idle.
- ✅ Well-suited for performance builds and racing.
Cons:
- ❌ May require a higher stall torque converter.
- ❌ Not ideal for heavy towing or hauling.
- ❌ Can be a bit aggressive for daily driving in some vehicles.
Verdict: If you’re building a performance-oriented 5.3L, the TSP Torquer V2 is an excellent choice. It delivers impressive power gains, but be prepared for a more aggressive driving experience.
3. Summit Racing SUM-8703R1 Camshaft
If you’re on a budget but still want to improve your 5.3L’s performance, the Summit Racing SUM-8703R1 Camshaft is a great option. It offers a noticeable improvement over the stock cam without breaking the bank. I’ve seen quite a few budget builds using this cam, and the results are surprisingly good for the price.
Pros:
- ✅ Affordable and budget-friendly.
- ✅ Provides a noticeable improvement over the stock cam.
- ✅ Easy to install and compatible with stock components.
Cons:
- ❌ Power gains are not as significant as more expensive cams.
- ❌ May not be the best choice for high-performance builds.
- ❌ Limited top-end power compared to other options.
Verdict: This cam is a solid choice for budget-conscious enthusiasts who want a mild performance upgrade. It’s a great way to get more out of your 5.3L without spending a fortune.
4. Chevrolet Performance ASA Cam
The Chevrolet Performance ASA Cam is a reliable and proven performance upgrade for the 5.3L. It’s based on the cam used in the ASA racing series, offering a balance of power and durability. I’ve always been impressed by the quality and consistency of Chevrolet Performance parts.
Pros:
- ✅ Proven performance and reliability.
- ✅ Good mid-range and top-end power.
- ✅ Compatible with a wide range of applications.
Cons:
- ❌ Can be more expensive than some aftermarket options.
- ❌ May require upgraded valve springs.
- ❌ Not the most aggressive cam on the market.
Verdict: If you’re looking for a reliable and well-engineered performance upgrade, the Chevrolet Performance ASA Cam is a great choice. It offers a good balance of power and durability.
5. Edelbrock Performer RPM Camshaft Kit
The Edelbrock Performer RPM Camshaft Kit is designed to provide a complete and optimized performance upgrade for your 5.3L. It includes a matched cam and lifter set, ensuring proper compatibility and performance. I like that Edelbrock takes the guesswork out of choosing the right components.
Pros:
- ✅ Complete kit with matched components.
- ✅ Designed for easy installation and optimized performance.
- ✅ Improved throttle response and mid-range power.
Cons:
- ❌ Can be more expensive than buying components separately.
- ❌ May not be the best choice for extreme performance builds.
- ❌ Limited top-end power compared to more aggressive cams.
Verdict: This kit is a great option for those who want a hassle-free and reliable performance upgrade. The matched components ensure optimal performance and easy installation.
Buying Guide
Choosing the right cam for your 5.3L depends on your specific goals and driving style. Here are some key factors to consider:
- Intended Use: Are you primarily using your vehicle for daily driving, towing, racing, or a combination of these? This will help you determine the ideal cam profile and power band.
- Torque Converter: If you’re choosing a more aggressive cam, you may need to upgrade your torque converter to match the cam’s power band. A higher stall speed can improve acceleration and overall performance.
- Valve Springs: Many aftermarket cams require upgraded valve springs to handle the increased lift and RPM. Be sure to check the cam manufacturer’s recommendations.
- Tuning: After installing a new cam, it’s essential to get your engine tuned to optimize performance and ensure proper air/fuel ratios. A professional tune can unlock the full potential of your new cam.
- Budget: Camshafts vary widely in price, so it’s important to set a budget and choose a cam that fits your needs without breaking the bank.
FAQs
Q: Will a new cam void my warranty?
A: Yes, installing an aftermarket cam can void your factory warranty. It’s always best to check with your dealer before making any modifications.
Q: Do I need to replace the lifters when I install a new cam?
A: It’s highly recommended to replace the lifters when installing a new cam. This ensures proper compatibility and prevents premature wear.
Q: Can I install a cam myself, or do I need a professional?
A: Installing a cam requires some mechanical knowledge and experience. If you’re not comfortable working on engines, it’s best to have a professional install it.
Q: How much horsepower can I expect to gain from a new cam?
A: Horsepower gains vary depending on the cam and other modifications. However, you can typically expect to see gains of 30-75 horsepower with a good cam upgrade.
Q: What other modifications should I consider when installing a new cam?
A: In addition to valve springs and lifters, you may also want to consider upgrading your intake manifold, exhaust system, and fuel injectors to maximize performance.
Conclusion
Choosing the best cam for your 5.3 LS motor really boils down to what you want to achieve with your vehicle. Whether you’re looking for improved towing performance, maximum horsepower, or a budget-friendly upgrade, there’s a cam out there that’s perfect for you. I hope this guide has helped you narrow down your options and make an informed decision. Happy modding!
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