Thinking about throwing a new cam in your 5.3 LS? It’s one of the best bang-for-your-buck mods you can do. A good cam swap can wake up your engine and give you that aggressive sound everyone loves. But, with so many options out there, picking the right one can feel overwhelming. I’ve spent hours researching and even helped a buddy with his cam swap, so I’m sharing what I’ve learned to help you find the perfect cam for your ride.
Here’s a quick rundown of the cams we’ll be looking at:
- Summit Racing SUM-8703R1: Great all-around performance, budget-friendly.
- Brian Tooley Racing BTR Stage 2 Truck Cam: Designed for trucks, strong low-end torque.
- Texas Speed TSP 220R Cam: Excellent for street/strip builds, noticeable power gains.
- COMP Cams Xtreme Energy XR259HR: Aggressive sound, good mid-range power.
- LS Power MAX Torque Stage 1 Cam: Optimized for maximum low-end torque, perfect for towing.
Top 5 Best Cam For 5.3 LS Reviews
1. Summit Racing SUM-8703R1
The Summit Racing SUM-8703R1 is a fantastic all-around camshaft for 5.3 LS engines. It offers a noticeable improvement in power and torque without sacrificing drivability. This cam is a popular choice for those looking for a cost-effective upgrade.
Pros:
- ✅ Affordable price point.
- ✅ Good overall performance gains.
- ✅ Works well with stock components.
Cons:
- ❌ Not as aggressive as some other options.
- ❌ May require a tune for optimal performance.
- ❌ Lobe separation may require a stall converter
Verdict: The SUM-8703R1 is a great choice for budget-minded enthusiasts who want a noticeable performance boost without breaking the bank. It’s a reliable and easy-to-install option for daily drivers and mild performance builds.
2. Brian Tooley Racing BTR Stage 2 Truck Cam
The Brian Tooley Racing (BTR) Stage 2 Truck Cam is specifically designed for maximizing low-end torque in trucks and SUVs with 5.3 LS engines. If you’re looking for improved towing capacity or better off-the-line acceleration, this is a great option. It’s a popular choice for those who use their truck for work or play.
Pros:
- ✅ Excellent low-end torque.
- ✅ Improved towing performance.
- ✅ Smooth idle for a truck cam.
Cons:
- ❌ May require upgraded valve springs.
- ❌ Not ideal for high-RPM performance.
- ❌ Tune is highly recommended.
Verdict: The BTR Stage 2 Truck Cam is perfect for truck owners who need more low-end grunt. It’s a well-engineered cam that delivers noticeable improvements in torque and drivability, making it ideal for towing and hauling.
3. Texas Speed TSP 220R Cam
The Texas Speed (TSP) 220R Cam is a popular choice for those building a street/strip 5.3 LS engine. It offers a significant increase in horsepower and torque across the RPM range. This cam is known for its aggressive sound and impressive performance gains.
Pros:
- ✅ Significant horsepower and torque gains.
- ✅ Aggressive sound.
- ✅ Good for street and strip use.
Cons:
- ❌ Requires upgraded valve springs and pushrods.
- ❌ May have a slightly rougher idle.
- ❌ A tune is essential.
Verdict: The TSP 220R Cam is an excellent choice for enthusiasts who want serious performance from their 5.3 LS. It’s a proven performer that delivers impressive power gains for both street and strip applications.
4. COMP Cams Xtreme Energy XR259HR
The COMP Cams Xtreme Energy XR259HR is designed to deliver strong mid-range power and an aggressive exhaust note. It’s a popular choice for those who want a noticeable performance boost and a classic muscle car sound. This cam is known for its fast ramp rates and efficient valve control.
Pros:
- ✅ Strong mid-range power.
- ✅ Aggressive exhaust note.
- ✅ Improved throttle response.
Cons:
- ❌ May require a higher stall converter.
- ❌ Upgraded valve springs are recommended.
- ❌ Fuel economy may decrease.
Verdict: The COMP Cams XR259HR is a great option for those who want a balance of performance and sound. It delivers a noticeable improvement in power and throttle response, making it a fun and engaging cam for street use.
5. LS Power MAX Torque Stage 1 Cam
The LS Power MAX Torque Stage 1 Cam is engineered for maximum low-end torque and improved drivability. It’s an excellent choice for trucks, SUVs, and other vehicles that need extra pulling power. This cam is designed to work well with stock components, making it a relatively easy upgrade.
Pros:
- ✅ Maximum low-end torque.
- ✅ Improved drivability.
- ✅ Works well with stock components.
Cons:
- ❌ Not ideal for high-RPM performance.
- ❌ May not provide as much top-end horsepower as other cams.
- ❌ Tune is recommended for best results.
Verdict: The LS Power MAX Torque Stage 1 Cam is perfect for those who prioritize low-end torque and drivability. It’s a great choice for trucks and SUVs that are used for towing, hauling, or daily driving.
Buying Guide
Choosing the right cam for your 5.3 LS engine depends on your specific needs and goals. Here are a few factors to consider:
- Intended Use: Are you building a street/strip car, a truck for towing, or a daily driver? The answer to this question will significantly narrow down your options. A cam designed for low-end torque will be ideal for towing, while a cam designed for high-RPM horsepower will be better suited for racing.
- Engine Components: Consider the other components in your engine. Upgraded valve springs, pushrods, and a higher stall converter may be required for some cams. Make sure your engine can handle the increased demands of the new cam.
- Tuning: A tune is almost always recommended after installing a new cam. A proper tune will ensure that your engine is running optimally and safely. It can also help to maximize the performance gains from the new cam.
- Budget: Camshafts can range in price from a couple hundred dollars to over a thousand. Set a budget before you start shopping, and stick to it. Don’t forget to factor in the cost of supporting components and tuning.
- Sound: Different cams produce different exhaust notes. Some cams have a smooth idle, while others have a more aggressive, choppy idle. Consider the sound you want your engine to have when choosing a cam.
FAQs
Q: Will I need a tune after installing a new cam?
A: Yes, a tune is highly recommended after installing a new cam. A tune will ensure that your engine is running optimally and safely, and it can also help to maximize the performance gains from the new cam.
Q: Do I need to upgrade my valve springs when installing a new cam?
A: It depends on the cam. Some cams require upgraded valve springs to prevent valve float and ensure proper valve control. Check the cam manufacturer’s recommendations to see if upgraded valve springs are necessary.
Q: What is a cam lobe separation angle?
A: Lobe separation angle (LSA) is the angle between the centerline of the intake lobe and the centerline of the exhaust lobe on the camshaft. LSA affects the engine’s idle quality, powerband, and overall performance. Generally, a tighter LSA will result in a more aggressive idle and stronger low-end torque, while a wider LSA will result in a smoother idle and better high-RPM horsepower.
Q: Can I install a cam myself?
A: Installing a cam is a complex process that requires mechanical knowledge and experience. If you’re not comfortable working on engines, it’s best to have a professional install the cam for you.
Conclusion
Choosing the right cam for your 5.3 LS engine can make a huge difference in performance and drivability. Whether you’re looking for more low-end torque for towing, or more horsepower for racing, there’s a cam out there that’s perfect for you. Consider your intended use, budget, and other engine components when making your decision. With the right cam, you can transform your 5.3 LS engine into a true powerhouse.
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