Best Cam For 4.8 Ls (2024 Update)

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If you're looking for the best cam for your 4.8 LS engine, it's important to do your research and consider a few factors before making a purchase. The camshaft is a crucial component in the performance of your engine, so selecting the right one can make a big difference in power and torque output.

Before buying a cam for your 4.8 LS, consider the engine's intended use. Are you building a street machine or a race car? Do you need more low-end torque or high-end power? You should also think about the diameter of the camshaft, the lift it provides, and the duration of the valve opening and closing events. Additionally, think about the type of fuel and exhaust system you will be using, as this can impact the camshaft's performance.

If you're looking for the best cam for your 4.8 LS engine, you might be wondering: what makes a camshaft "the best"? Some questions to ask yourself when evaluating different camshaft options include: Does it provide a power increase throughout the entire RPM range, or just in a narrow band? How easy is it to install and tune the camshaft? Is the manufacturer reputable and known for producing high-quality products? Answering these questions can help you select the right cam for your specific needs.

13 Best Cam For 4.8 Ls

# Product Image Product Name Product Notes Check Price
1
This product is ideal for improving the performance of LS engines by upgrading the camshaft, springs, seals, gaskets, and pushrods.
2
The product is ideal for enhancing the performance of Gen 3/4 LS engines in trucks with various displacement sizes.
3
It is ideal for improving performance and horsepower in Gen 3/4 LS engines of various sizes.
4
This product is ideal for improving the performance of 1997-2007 Chevy LS V8 engines with enhanced camshaft and lifters.
5
This product is ideal for improving the performance of GM LS/LQ engines with 4.8-6.2L displacement, including turbo kits.
6
This product is ideal for securing and sealing the camshaft thrust retainer plate in Gen III, IV, and V LS and LT engines.
7
The product is ideal for improving the performance of Gen 3/4 LS V8 engines without the need for springs.
8
The product is ideal for increasing horsepower and torque in LS 4.8/5.3/6.0L trucks through a performance camshaft upgrade.
9
This product is ideal for upgrading the performance of Gen 3/4 LS engines ranging from 4.8L to 6.2L.
10
This product is ideal for improving the performance of LS series engines, specifically those with 4.8, 5.3, 5.7, and 6.0 liter capacities.
11
It is ideal for improved performance in Gen 3/4 LS engines ranging from 4.8L to 6.2L, including the LS1 Vortec.
12
This product is ideal for upgrading the camshaft on GM performance LS/LQ engines ranging from 4.8 to 6.2 liters.
13
The product is ideal for enhancing the performance of GM trucks and SUVs with 4.8L, 5.3L, and 6.0L engines.
This product is ideal for improving the performance of LS engines by upgrading the camshaft, springs, seals, gaskets, and pushrods.
The product is ideal for enhancing the performance of Gen 3/4 LS engines in trucks with various displacement sizes.
It is ideal for improving performance and horsepower in Gen 3/4 LS engines of various sizes.
This product is ideal for improving the performance of 1997-2007 Chevy LS V8 engines with enhanced camshaft and lifters.
This product is ideal for improving the performance of GM LS/LQ engines with 4.8-6.2L displacement, including turbo kits.
This product is ideal for securing and sealing the camshaft thrust retainer plate in Gen III, IV, and V LS and LT engines.
The product is ideal for improving the performance of Gen 3/4 LS V8 engines without the need for springs.
The product is ideal for increasing horsepower and torque in LS 4.8/5.3/6.0L trucks through a performance camshaft upgrade.
This product is ideal for upgrading the performance of Gen 3/4 LS engines ranging from 4.8L to 6.2L.
This product is ideal for improving the performance of LS series engines, specifically those with 4.8, 5.3, 5.7, and 6.0 liter capacities.
It is ideal for improved performance in Gen 3/4 LS engines ranging from 4.8L to 6.2L, including the LS1 Vortec.
This product is ideal for upgrading the camshaft on GM performance LS/LQ engines ranging from 4.8 to 6.2 liters.
The product is ideal for enhancing the performance of GM trucks and SUVs with 4.8L, 5.3L, and 6.0L engines.

1. Ls Cam Kit: Stage 2 Upgrade

The Sloppy Mechanics Stage 2 Camshaft is a performance-enhancing upgrade for all Gen 3/4 LS engines including LS1, LS6, LS2, LQ4, LQ9, and more. This camshaft comes with 228/230 duration, .585"/.585" lift, and a 112 LSA. The package includes camshaft, springs, seals, gaskets, and pushrods, making it a comprehensive kit for a hassle-free installation.

This camshaft is designed for those who like a nice Lopey/Choppy idle while keeping the costs low. It is an excellent choice for daily drivers, cars, trucks, SUVs, street rods, and LS swaps. The Sloppy Mechanics Stage 2 Camshaft will make tons of power and give your engine a muscle car sound.

If you're looking to pair this camshaft with an automatic transmission, it's recommended to use a 2,600-2,800 Stall Converter for optimal performance.

There are different kits available to match your requirements. The Elgin Sloppy Stage 2 Camshaft kit includes camshaft, springs, and seals. The Camshaft, Springs, Seals, and Gaskets kit includes everything in the previous kit plus an install gasket kit. The Camshaft, Springs, Seals, Gaskets, and Pushrods kit is the most comprehensive and includes everything in the previous kits plus Michigan Motorsports 7.400 5/16" chromoly pushrods.

All components of this kit are designed to work together and provide a significant power boost to your LS engine. The Sloppy Mechanics Stage 2 Camshaft is an ideal choice for those who want to take their engine's performance to the next level without breaking the bank. Upgrade your LS engine with this camshaft and experience the power, sound, and performance it delivers!

2. Truck Norris Cam For Ls Engines.

Introducing the BTR Brian Tooley TRUCK NORRIS Camshaft, specially designed for 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2. With impressive camshaft specifications of 212/22X .552"/.552" 107 LSA 3 Bolt Pattern, this camshaft is the perfect addition to your GM V8 Truck or SUV.

Developed through extensive in-house cam lobe design and dyno testing, the BTR Truck Norris Camshaft delivers more power and torque curve compared to BTR's renowned V2 truck cams. This camshaft offers an idle sound similar to aggressive truck camshafts, yet still behaves well with stock torque converters.

To make your purchase even easier, we offer various kit options to suit your specific needs. The Camshaft only option includes the BTR Truck Norris Camshaft by itself. The Camshaft, Springs and Valve Stem Seals option includes the BTR Truck Norris Cam, high-quality beehive springs, and valve stem seals. The Camshaft, Springs, Valve Stem Seals, and Pushrods option includes the BTR Truck Norris Cam, beehive springs, valve stem seals, and 7.400" long, 5/16" Chromoly Pushrods with .080" wall thickness. Lastly, the Gasket Kit option includes Timing cover gasket, water pump gaskets, front crankshaft seal, and GM damper bolt.

Upgrade your GM V8 Truck or SUV with the BTR Brian Tooley TRUCK NORRIS Camshaft and experience the added power and torque you've been looking for.

3. Ls Vortec Truck Norris Cam Kit

Introducing the BTR Brian Tooley TRUCK NORRIS Camshaft, specially designed for 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2. With its impressive specifications of 212/22X .552"/.552" 107 LSA 3 Bolt Pattern, this camshaft is a force to be reckoned with.

The Truck Norris camshaft has been developed using extensive in-house cam lobe design and dyno testing, ensuring that it delivers power and torque throughout the entire curve, surpassing BTR's legendary V2 truck cam in performance. The camshaft's idle sound is similar to more aggressive truck camshafts, while still functioning well with stock torque converters.

Please note that if you intend to install the Truck Norris camshaft in an engine originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required, which is not included in the package. However, BTR offers a kit option that takes the guesswork out of the process, including the following: Camshaft, Springs and MM Hat Seals: BTR Truck Norris Cam, high-quality beehive springs, and MM hat valve seals. Camshaft, Springs, MM Hat Seals and Pushrods: BTR Truck Norris Cam, beehive springs, MM hat seals, and 7.400" long, 5/16" Chromoly Pushrods with .080" wall thickness. MM Gasket kit: Includes Timing cover gasket, water pump gaskets, front crankshaft seal, and new damper bolt.

4. Ls V8 Stage 2 Camshaft Kit.

This 1218 springs kit is specifically designed for GM Chevy LS 4.8L, 5.3L, 6.0L, and 6.2L V8 engines produced between 1997 and 2007. This kit includes an E1840P camshaft, 16 beehive valve springs, and 16 LS7 valve lifters. The camshaft has an RPM range of 2200 to 5400 and a cam gear attachment of 3-Bolt.

The NON AFM LS7 valve lifters included in this kit are compatible with LS series LS1, LS2, LS3, LS6, and 1999-2015 trucks/suvs with 4.8, 5.3, 5.7, 6.0, and 6.2 engines. This kit comes with a 1-year warranty provided by SUSUCAR. In the unlikely event of any quality issues with the product, customers can contact the manufacturer without hesitation for assistance in resolving the problem.

5. Ls/lq Performance Upgrade Kit – Ultimate Power Boost!

This Camshaft and Springs Kit is a perfect fit for GM LS/LQ 4.8L 5.3L 5.7L 6.0L 6.2L engines. The kit includes an LS9 camshaft, 16 LS6 valve springs, and 16 valve oil seals, making it an excellent choice for engine enthusiasts who are looking for high-quality components to improve their engine's performance.

The camshaft included in the kit has the following specifications: 211/230 Lift .562"/.588" 122 LSA. The part numbers for this kit are 12638427 and 12482063.

In terms of warranty, the manufacturer provides a 12-months warranty for their product. If there are any quality issues with the camshaft and springs kit, customers can contact the manufacturer without hesitation. The manufacturer is committed to providing excellent customer service and will do their best to resolve any issues quickly and efficiently.

6. Ls Lt Camshaft Thrust Plate Fasteners Kit

If you're looking for a high-quality LS Countersunk Camshaft Retainer Plate Gasket, this Genuine OEM Factory Part is the perfect choice for you. Expertly designed and crafted, this product is compatible with LS series engines that have FLAT head bolts.

Not only does this package include the retainer gasket plate, but it also comes with all the necessary hardware you need to install it. This makes the installation process quick and hassle-free.

The LS Countersunk Camshaft Retainer Plate Gasket is made from high-quality materials, ensuring that it is durable and long-lasting. You won't have to worry about frequent replacements or repairs, as this product is built to withstand wear and tear.

When it comes to quality, this product is truly the best. It has been rigorously tested to ensure that it meets the highest standards of performance and reliability. You can trust that this Genuine OEM Factory Part will deliver exceptional results every time.

Whether you're a professional mechanic or a DIY enthusiast, this LS Countersunk Camshaft Retainer Plate Gasket is an essential component for your engine. Don't settle for anything less than the best in quality – choose this Genuine OEM Factory Part for your next project.

7. Ls Truck Camshaft – No Springs Needed!

The TRUCK NORRIS NSR Camshaft for 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2 is a powerful and convenient upgrade for your truck or SUV. This new version of the popular Truck Norris camshaft is designed to be used with your factory valve springs and pushrods, saving you time and money on new parts. However, it's important to note that if your engine has high mileage, it's still recommended to replace the springs for optimal performance.

With specs of 212/22X .498"/.498" 107 LSA 3 Bolt Pattern, the Truck Norris NSR camshaft has been developed through extensive in-house cam lobe design and dyno testing to provide more power and torque throughout the entire curve compared to other truck cams, such as BTR's legendary V2. Despite its aggressive idle sound, it's still able to work well with stock torque converters.

This listing is for the camshaft only and does not include any springs or pushrods. However, an optional installation gasket kit is available, which includes a timing cover gasket, water pump gaskets, front crankshaft seal, and a new damper bolt.

It's important to note that VVT engines will require a VVT delete kit, and if you're installing it in an engine originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required. Additionally, DOD/AFM engines will require a DOD delete to install any aftermarket camshafts.

8. Comp Cams 54-700-11 Stage 1 Thumpr Cam For Gen Iii Ls 4.8/5.3/6.0l Trucks, Camshaft Only

Looking for a reliable and powerful engine upgrade? Look no further than the Dyne-developed high-performance camshafts. Tested and proven to add a whopping 68 horsepower when used with the properly matched CK and MK kit components, this upgrade is sure to take your vehicle to the next level.

One of the key features of these camshafts is their high RPM potential. With the LST camshafts, your engine can easily handle the 6,700 to 7,300 RPM range, which not only allows it to turn more RPM, but also to make more power in this range. This is thanks to the "NSR" No Springs Required lobe design, which ensures that the valve train is properly balanced and able to handle the increased RPMs.

One of the best things about these camshafts is that there is no guesswork involved in selecting the rest of the valve train. The CK and MK kits have been specifically designed to work seamlessly with these camshafts, so you can be sure that you're getting the best possible performance without any trial and error.

This upgrade is also vehicle-specific, meaning that it has been designed to fit perfectly with your particular make and model. So whether you're looking to improve the performance of your daily driver or take your track car to the next level, these high-performance camshafts are the perfect upgrade for any gearhead looking for reliable, powerful performance.

9. Truck Power Upgrade Kit – Btr Ls Gen 3/4

Looking for an upgrade to your GM V8 Truck or SUV's engine? Look no further than the BTR Brian Tooley TRUCK NORRIS Camshaft. This camshaft is designed specifically for 1999-2013 GM Gen3/4 LS Truck Engines with 4.8, 5.3, 6.0, and 6.2 liter capacities. With specs of 212/22X .552"/.552" 107 LSA 3 Bolt Pattern, this camshaft has been developed through extensive in-house cam lobe design and dyno testing to provide more power and torque than BTR's legendary V2 truck cams.

The Truck Norris camshaft is perfect for those seeking an aggressive idle sound, yet still want a camshaft that will behave well with stock torque converters. This camshaft delivers a roundhouse kick in the pants and will improve power and torque throughout the entire curve, providing an exhilarating driving experience.

It is important to note that VVT engines will require a VVT delete kit when installing this camshaft. Additionally, if you are installing this camshaft in an engine that was originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required.

Upgrade your GM V8 Truck or SUV engine with the BTR Brian Tooley TRUCK NORRIS Camshaft and experience the power and performance you've been looking for.

10. Ls Performance Cam And Spring Set

The Texas Speed TSP 224R 224/224 .600"/.600" Camshaft, Spring Kit, and Chromoly Pushrods 4.8 5.3 5.7 6.0 LS LS1 is a high-performance kit that includes a TSP .660" Dual Spring Kit with PAC Racing Polished Springs, Titanium Retainers, Hardened Spring Seats, and New Valve Stem Seals, along with 7.400 Chromoly Pushrods.

The 112LSA (Lobe Separation Angle) brings the camshaft's powerband lower in the rpm range and creates a slightly rougher idle. This camshaft is one of the most popular offerings for LS1 engines, providing excellent drive-ability while delivering a solid 40+ rear wheel horsepower gains.

The 224R camshaft is a smaller camshaft that packs a big punch, making it an ideal choice for customers looking for high performance. The kit is designed to fit 4.8, 5.3, 5.7, and 6.0 LS LS1 engines, ensuring compatibility with a wide range of vehicles.

The TSP .660" Dual Spring Kit with PAC Racing Polished Springs is a high-quality component that is designed to provide excellent performance and reliability. The titanium retainers are lightweight and durable, while the hardened spring seats ensure a secure fit. The new valve stem seals help to prevent oil leaks and ensure optimal performance.

The 7.400 Chromoly Pushrods are made from high-strength materials, providing superior durability and performance. They are designed to withstand high levels of stress and pressure, making them an ideal choice for high-performance applications.

11. Brian Tooley Btr Truck Norris Camshaft For Gen 3/4 Ls 4.8 5.3 5.7 6.0 6.2 Ls1 Vortec (Camshaft Only)

Introducing the BTR Brian Tooley TRUCK NORRIS Camshaft for 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2 – a powerful addition to your truck or SUV's engine. This camshaft boasts impressive specifications, with a 212/22X cam duration, .552/.552 lift, and a 107 LSA.

It's important to note that this camshaft is a 3 bolt cam, so if you're installing it in an engine that was originally equipped with a 1-bolt camshaft, you'll need to purchase a Dynosty 3 Bolt Conversion Kit separately.

The BTR Truck Norris Camshaft has been developed with hundreds of hours of in-house cam lobe design and dyno testing. The result is a camshaft that delivers more power and torque throughout the curve when compared to BTR's legendary V2 truck cams. It also has an idle sound similar to more aggressive truck camshafts, without compromising the performance of stock torque converters.

If your engine has VVT, you'll require a VVT delete kit.

It's worth noting that Dynosty is an authorized BTR Brian Tooley Racing Dealer, and they have cams and cam kits in stock. You can trust this reliable and powerful camshaft to give your GM V8 truck or SUV a significant performance boost.

12. Turbo Ls Hydraulic Camshaft Kit By Laformo

Looking for a reliable and high-quality camshaft and cam springs kit? Look no further than the Fit For GM LS/LQ 4.8/5.3/5.7/6.0/6.2 kit, which includes everything you need to enhance your engine's performance.

The package includes a top-of-the-line camshaft and cam springs kit, as well as part numbers 12638427 and 12482063. Designed to fit all Gen IV engines with proper valvesprings, this kit is a must-have for any car enthusiast looking to take their vehicle to the next level.

It's important to note that if you have a Gen III engine, you'll need a Gen IV timing chain cover for the cam position sensor. Other than that, this kit is compatible with a wide range of engines and is sure to provide the power and performance you're looking for.

With its durable construction and reliable performance, the Fit For GM LS/LQ 4.8/5.3/5.7/6.0/6.2 kit is a great investment for anyone who takes their car's performance seriously. So why wait? Order yours today and experience the difference for yourself!

13. Ls Truck Stage 2 Cam Kit – Custom Upgrade

Introducing the Complete Camshaft Kit, a must-have for truck and SUV enthusiasts who demand maximum performance from their vehicles. This kit includes a Stage II Camshaft Specs (31218110) 212/218 .553"/.553" 111, LS Hat Valve Seals, LS6 Beehive (.560" lift) Valve Spring Kit (SP011-16) or GM LS6 Valve Spring Kit. This is the largest cam recommended to run with the stock 4L60E converter in a 4.8 L / 5.3 L engine.

The Stage II LS cam is designed to produce a more noticeable idle than the Stage I cam, with even more average torque production. This makes it an excellent choice for those who need to hook up to a trailer and hit the road for the weekend. The kit provides more average torque than other options on the market, giving truck and SUV owners the power they need to tackle any challenge.

The Truck Camshaft Kit is specifically designed for GM trucks and SUVs equipped with 4.8 L, 5.3 L, and 6.0 L engines. These camshafts are designed to increase power without sacrificing low-end torque, making them an excellent choice for heavier vehicles such as the Chevy Silverado, GMC Sierra, Yukon, Tahoe, Suburban, Cadillac Escalade, and more. The camshafts have a 3-bolt timing gear pattern and are designed with low lift so that 1999-2013 GM LS2, LS3, and LS6 springs can be used.

The Truck Camshaft Kit is made from high-strength steel and coated for added corrosion protection. The result is a trustworthy performance that is solid and durable. The kit is designed to last, which is why all stage II cam kits undergo strict quality control.

Customers can purchase the Truck LS Camshaft and Spring Set with confidence, thanks to the 60-month warranty and 100% satisfaction guarantee. If the Stage II cam springs kits fail, crack, stop working, or any other problems arise, customers can contact the manufacturer directly through Amazon message. The 5-year warranty ensures a hassle-free purchase and peace of mind for truck and SUV owners who demand the best.

Best Cam For 4.8 Ls FAQs

Can I install a larger cam in a 4.8 LS engine without upgrading other components?

Installing a larger cam in a 4.8 LS engine can provide significant gains in horsepower and torque. However, increasing the cam size will also affect other engine components, such as the valve springs and pushrods. These components may need to be upgraded to handle the increased stress and load from the larger camshaft.

Additionally, the engine's computer may need to be reprogrammed or a custom tune may need to be installed to optimize performance and prevent any potential issues. It's also important to consider the specific application and use of the vehicle when deciding on camshaft size and other upgrades.

In summary, while it is possible to install a larger cam in a 4.8 LS engine without upgrading other components, it is not recommended. Upgrading other components, such as valve springs and pushrods, will ensure the engine is capable of handling the increased load and prevent potential issues.

How do I choose the right cam for my 4.8 LS engine?

Choosing the right cam for your 4.8 LS engine can be a daunting task, but there are a few things you can consider to make an informed decision. First, determine the intended use of the engine. A cam designed for street use will differ from one designed for racing. Consider the engine's compression ratio, cylinder head flow, and exhaust system. These factors will affect the cam's performance. Next, research reputable camshaft manufacturers and read reviews from other LS engine owners. Look for cams that have been specifically designed for the 4.8 LS engine and its specifications. Finally, consult with a professional engine builder or tuner who can offer their expertise and recommend the best cam for your specific needs. Be prepared to provide them with detailed information about your engine, including any modifications you have made. By taking these steps, you can ensure that you choose the right cam for your 4.8 LS engine and achieve the desired performance results.

How do I properly break in a new camshaft in my 4.8 LS engine?

Breaking in a new camshaft in your 4.8 LS engine is an essential step to ensure the longevity of your engine. Here are the steps to properly break in a new camshaft:

1. First, you need to ensure that the engine oil is of high quality and has the appropriate viscosity. The oil should be changed before installing the new camshaft.

2. Before starting the engine, prime the oil pump to ensure that oil flows to all the essential components.

3. Start the engine and let it idle for about 20-30 minutes. During this time, avoid revving the engine or putting it under load.

4. After the initial idle period, gradually increase the engine speed to around 2,500 RPM and hold it there for a few minutes.

5. Slowly bring the engine speed back down to idle and let it cool down for about 10-15 minutes.

6. Repeat the process of gradually increasing the engine speed and letting it cool down for a few cycles.

7. After the break-in period, change the oil and filter once again to remove any metal particles that might have accumulated during the break-in process.

By following these steps, you can ensure that your new camshaft is properly broken in and your engine will perform optimally for years to come.

How does a cam upgrade affect the power and torque output of a 4.8 LS engine?

Upgrading the camshaft in a 4.8 LS engine can have a significant impact on its power and torque output. A performance camshaft can increase the duration and lift of the valve opening, allowing more air and fuel to enter the engine. This results in improved combustion efficiency and higher power output. Additionally, a performance camshaft can alter the engine's power band, shifting it higher up in the RPM range. This means that the engine will produce more power and torque at higher RPMs, which can be beneficial for racing or high-performance applications. However, it's important to note that a cam upgrade may also require other modifications to the engine, such as upgraded valve springs, rocker arms, and pushrods. It's best to consult with a professional mechanic or engine builder to ensure that all modifications are properly matched and installed for optimal performance.

What are some reputable brands of camshafts for a 4.8 LS engine?

There are several reputable brands of camshafts for a 4.8 LS engine. Some of the most popular ones include Comp Cams, Texas Speed & Performance, Brian Tooley Racing, and Lunati. Each of these brands offers a variety of camshafts with different profiles and specifications, allowing you to choose the one that best suits your engine build and performance goals.

Comp Cams is known for its high-quality camshafts that are designed to deliver maximum power and torque. Texas Speed & Performance offers a range of camshafts for LS engines, including their popular "Magic Stick" line. Brian Tooley Racing is another well-respected brand that specializes in camshafts and valvetrain components for LS engines. Finally, Lunati offers a variety of camshafts with different profiles and specifications, allowing you to choose the one that best suits your needs.

When selecting a camshaft for your 4.8 LS engine, it's important to consider factors such as the engine's compression ratio, cylinder head flow, and intended use. A reputable brand will be able to provide you with guidance and assistance in selecting the right camshaft for your specific application.

What are the advantages of upgrading to a high-performance cam in a 4.8 LS engine?

Upgrading to a high-performance cam in a 4.8 LS engine can offer several advantages. Firstly, it can increase the engine's power output by improving the airflow through the engine. This can result in improved acceleration and overall performance. Additionally, a high-performance cam can improve the engine's torque, allowing for better towing capabilities.

Another advantage of upgrading to a high-performance cam is that it can improve the engine's sound. Many high-performance cams produce a more aggressive and throaty exhaust note, which can enhance the overall driving experience.

Furthermore, a high-performance cam can also improve fuel efficiency by providing better combustion of the fuel. This can lead to better gas mileage and savings at the pump.

Overall, upgrading to a high-performance cam in a 4.8 LS engine can offer improved power, torque, sound, and fuel efficiency. However, it's important to note that this modification may require additional upgrades and tuning to fully optimize its benefits.

What are the best cam profiles for a 4.8 LS engine?

The best cam profiles for a 4.8 LS engine depend on the intended use of the engine. If the engine is going to be used for everyday driving or towing, a cam with a mild lift and duration would be suitable. On the other hand, if the engine is going to be used for drag racing or other high-performance applications, a more aggressive cam with higher lift and duration would be necessary.

It is also important to consider the other components of the engine, such as the cylinder heads and intake manifold, when selecting a cam profile. These components should be matched to the cam to ensure optimal performance.

Some popular cam profiles for the 4.8 LS engine include the Texas Speed 224/228 cam, the Brian Tooley Racing Stage 2 cam, and the Comp Cams XFI RPM cam. It is recommended to consult with a reputable engine builder or cam manufacturer to determine the best cam profile for your specific application.

What is the difference between hydraulic and solid roller cams for a 4.8 LS engine?

Hydraulic and solid roller cams are two different types of camshafts that can be installed in a 4.8 LS engine. The main difference between the two is their construction and how they operate.

Hydraulic roller cams use a hydraulic lifter to control valve operation. These lifters are filled with oil and use a spring to maintain proper valve lash. Hydraulic roller cams are generally quieter than solid roller cams and require less maintenance. They are also more forgiving if the engine experiences any valvetrain harmonics or other issues that can cause excessive wear.

Solid roller cams, on the other hand, use a solid lifter to control valve operation. These lifters do not have any oil inside and require precise adjustment of valve lash. Solid roller cams are typically louder than hydraulic roller cams and require more maintenance due to the need for frequent valve lash checks and adjustments.

In terms of performance, solid roller cams are generally preferred for high-revving engines that require maximum performance. They allow for more precise valve timing and can provide better overall power. However, hydraulic roller cams are often a better choice for street-driven engines that require good performance and reliability without the need for constant maintenance.

What is the ideal lift and duration for a cam in a 4.8 LS engine?

Determining the ideal lift and duration for a cam in a 4.8 LS engine depends on several factors, including the intended use of the engine and the desired performance characteristics. Generally, a higher lift and longer duration cam will result in increased horsepower and torque, but may sacrifice low-end power and drivability.

For a 4.8 LS engine used primarily for daily driving, a cam with a lift of around 0.550 inches and a duration of 220-230 degrees at 0.050 inches of valve lift is a good starting point. This cam will provide a noticeable improvement in performance without sacrificing drivability.

On the other hand, if the engine is intended for racing or high-performance use, a cam with a lift of 0.600 inches or more and a duration of 240-250 degrees at 0.050 inches of valve lift may be more appropriate.

Ultimately, selecting the ideal cam for a 4.8 LS engine requires careful consideration of the engine's intended use, available supporting modifications, and personal preferences. It is always recommended to consult with a reputable engine builder or cam manufacturer for specific recommendations based on the individual engine and application.

What supporting modifications are needed when upgrading to a high-performance cam in a 4.8 LS engine?

When upgrading to a high-performance cam in a 4.8 LS engine, there are several supporting modifications that are necessary to achieve optimal performance and prevent potential engine damage. Firstly, the valve springs, pushrods, and lifters should be upgraded to handle the increased lift and duration of the new camshaft. The valve springs must be strong enough to keep the valves from floating at high RPMs, while the pushrods and lifters should be able to withstand the increased forces generated by the camshaft.

Secondly, a high-performance intake manifold and exhaust system are recommended to maximize airflow and horsepower. The intake manifold should be designed to match the camshaft's RPM range, while the exhaust system should be optimized for flow and backpressure.

Thirdly, a custom tune is necessary to optimize the air/fuel ratio and ignition timing for the new camshaft and supporting modifications. This will ensure that the engine runs smoothly and efficiently without any potential damage.

Finally, it is important to upgrade the oil pump and oiling system components to ensure proper lubrication and reduce the risk of engine failure. This includes upgrading to a high-volume oil pump, oil pan baffle, and oil cooler if necessary.

Overall, upgrading to a high-performance camshaft requires careful consideration and planning to ensure that all supporting modifications are made to achieve the best results.

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