If you’re a performance enthusiast, you know that upgrading your LS engine’s valvetrain components can greatly enhance its power output and reliability. One of the most critical components of the valvetrain system is the rocker arm trunnion, which plays a vital role in keeping the valvetrain stable and reliable at high RPMs. Fortunately, LS trunnion upgrade kits are readily available on the market today, providing a cost-effective solution to improve the valvetrain’s performance and longevity. In this post, we’ll take a look at the top 3 LS trunnion upgrade kits that are currently available, and explain why they’re worth considering for your LS engine build.
Best LS Trunnion Upgrade Kit – Michigan Motorsports Rocker Arms and Bolts with Trunion Kit
Looking for the ultimate LS trunnion upgrade kit to take your engine to the next level? Look no further than the Michigan Motorsports Rocker Arms and Bolts with Trunion Kit! The trunnion kit is compatible with nearly all LS engines: LS1 LS2 LS6 LQ4 LQ9 LM7 4.8 5.3 5.7 6.0.
This kit is the best on the market for several reasons. First and foremost, it’s made with top-quality materials that are built to last. The rocker arms are constructed from premium grade steel and are heat-treated for maximum durability, while the bolts are made from hardened, black oxide-coated steel to resist corrosion and wear.
But that’s not all – this kit also includes a trunion upgrade that will transform the way your LS engine performs. The trunnion kit replaces the factory needle bearings with durable bronze bushings, which provide a stronger, more reliable pivot point for the rocker arms. This means smoother operation, reduced friction, and less wear and tear on your engine.
Installing the Michigan Motorsports LS1 Rocker Arms and Bolts with Trunion Kit is easy, too – it comes with everything you need to get the job done right. And once you’re done, you’ll notice an immediate improvement in your engine’s performance. You’ll get better throttle response, more power, and a smoother, more efficient running engine.
So if you’re looking for the ultimate LS trunnion upgrade kit, look no further than the Michigan Motorsports LS1 Rocker Arms and Bolts with Trunion Kit. With its top-quality materials, durable construction, and easy installation, it’s the perfect way to take your LS engine to the next level. Don’t settle for less – upgrade your engine with the best!
Pros:
- Improves durability with premium-grade steel rocker arms and hardened bolts.
- Enhances engine performance and reduces wear and tear with stronger pivot points provided by bronze bushings in the trunion upgrade.
- Easy to install with all necessary components included in the kit.
- Ensures smooth operation and improved throttle response, resulting in a more efficient running engine.
- Offers excellent value for money compared to other LS trunnion upgrade kits on the market.
Cons:
- While the kit can improve engine performance, the gains may not be significant enough for high-performance applications, so it may not be the best option for serious racers or those looking for major horsepower gains.
Comp Cams 13702 Trunnion Upgrade Kit
The Comp Cams 13702 Trunnion Upgrade Kit is one of the best on the market for a few key reasons. First and foremost, it’s incredibly durable. The trunnions are made from high-quality materials that are designed to withstand the wear and tear of high-performance engines. This means you can trust that your upgrade will last for years to come. It is compatible with GM LS1/LS2/LS3/LS6 rocker arms.
In addition to being durable, this kit is also incredibly easy to install. The design is simple and straightforward, so you won’t need any special tools or equipment to get the job done. Even if you’re not a seasoned mechanic, you can easily upgrade your rocker arms with this kit.
But perhaps the most compelling reason to choose the Comp Cams 13702 Trunnion Upgrade Kit is its performance benefits. When you upgrade your rocker arms with this kit, you’ll notice a significant improvement in your engine’s power and torque. That’s because the trunnions are designed to reduce friction and wear, which means your engine can run more smoothly and efficiently.
So if you’re looking to upgrade your GM LS1/LS2/LS3/LS6 rocker arms, the Comp Cams 13702 Trunnion Upgrade Kit is the way to go. It’s durable, easy to install, and will give your engine a serious boost in performance. Don’t wait – upgrade your rocker arms today and experience the difference for yourself!
Pros:
- Improved durability: The Comp Cams 13702 Trunnion Upgrade Kit is made from high-quality materials that are designed to withstand wear and tear, ensuring your engine runs smoothly for years to come.
- Increased power and torque: By reducing friction and wear, the trunnions in this kit allow for improved power and torque in your engine.
- Easy installation: The kit is designed to be simple and straightforward, making it easy for even novice mechanics to install.
- Enhanced engine efficiency: With smoother, more efficient performance, you can expect to see better fuel economy and overall engine performance.
- Cost-effective upgrade: Compared to other performance upgrades, the Comp Cams 13702 Trunnion Upgrade Kit is relatively inexpensive, making it an affordable way to improve your engine’s performance.
Cons:
- Requires engine disassembly: To install this kit, you’ll need to take apart your engine, which can be time-consuming and complicated.
- Not compatible with all engines: This kit is specifically designed for GM LS1/LS2/LS3/LS6 rocker arms, so it may not be compatible with other types of engines.
Brian Tooley Racing (BTR) Trunnion Kit V2
With the BTR Trunnion Kit V2, you’ll enjoy enhanced durability and reduced friction, which means your engine will perform better than ever before. The kit’s rockers are made from premium materials, including hardened steel and bronze bushings, ensuring they’ll stand up to even the most demanding driving conditions.
What’s more, the BTR Trunnion Kit V2 is compatible with a wide range of LS engine models, including LS1, LS3, 4.8, 5.3, 5.7, 6.0, and 6.2. So no matter what LS engine you’re running, you can trust that this kit will work seamlessly.
But don’t just take our word for it – the BTR Trunnion Kit V2 has received rave reviews from LS engine enthusiasts all over the world. They’ve reported noticeable improvements in performance, including increased horsepower and torque, smoother valve operation, and reduced engine noise.
In short, if you’re looking to take your LS engine’s valvetrain to the next level, the BTR Trunnion Kit V2 is the way to go. With its top-of-the-line materials, superior durability, and compatibility with a wide range of LS engines, this kit is an investment you won’t regret. So why wait? Upgrade your LS engine today and experience the BTR Trunnion Kit V2 difference!
Pros:
- Enhanced Durability: The BTR Trunnion Kit V2 is made with premium materials, including hardened steel and bronze bushings, which ensures enhanced durability and longevity of your LS engine’s valvetrain.
- Improved Performance: The BTR Trunnion Kit V2 reduces friction and provides smoother valve operation, resulting in increased horsepower and torque. You can expect better engine performance overall.
- Wide Compatibility: The kit is compatible with a wide range of LS engines, including LS1, LS3, 4.8, 5.3, 5.7, 6.0, and 6.2, making it a versatile upgrade for many LS engine models.
- Easy to Install: The BTR Trunnion Kit V2 is easy to install, even for those with limited mechanical knowledge. You won’t need to spend hours in the garage figuring out how to install it.
- Great Value: For its price point, the BTR Trunnion Kit V2 provides excellent value. It offers superior durability and performance compared to other LS trunnion upgrade kits on the market.
Cons:
- Cost: The BTR Trunnion Kit V2 is more expensive than some other LS trunnion upgrade kits. However, the improved performance and durability make it a worthwhile investment.
- May Require Additional Parts: Depending on your LS engine model, you may need to purchase additional parts to complete the installation of the BTR Trunnion Kit V2. This can add to the overall cost of the upgrade.
Buying Considerations for LS Trunnion Upgrade Kits
- Compatibility: Ensure that the LS trunnion upgrade kit you select is compatible with your engine’s make and model. Check the manufacturer’s specifications to ensure that the kit will fit your engine.
- Material: The material of the trunnion upgrade kit is also essential. Look for high-quality materials that are durable and can withstand the engine’s performance. Steel or bronze is a popular choice for their strength and durability.
- Lubrication: Proper lubrication is vital for smooth and efficient engine performance. Some trunnion upgrade kits come pre-lubricated, while others require manual lubrication. Consider which lubrication method is best suited to your needs.
- Installation: Consider the complexity of installation when selecting a trunnion upgrade kit. Some kits require professional installation, while others can be installed by a knowledgeable car owner. Ensure that you have the tools and knowledge required to install the kit properly.
- Cost: The cost of the trunnion upgrade kit is an essential factor to consider. Consider the value for money, ensuring that you get a high-quality product that will meet your needs without breaking the bank.
- Brand Reputation: Look for trunnion upgrade kits from reputable brands such as Michigan Motorsports, Comp Cams, and Brian Tooley with a good track record for quality products and customer service. Reading reviews from other customers can help you determine the reliability of the brand.
- Performance Gains: Consider the performance gains of the trunnion upgrade kit. Will it enhance the engine’s performance, and if so, to what extent? Ensure that the benefits of the kit justify the cost and effort required for installation.
What is included in an LS Trunnion Upgrade Kit?
A top LS (LS1, LS2, LS3, etc.) trunnion upgrade kit typically includes the following components:
- Trunnion Bearings: The kit includes high-quality trunnion bearings that provide a smooth surface for the rocker arms to pivot on. These bearings are typically made of high-strength steel or a composite material and are designed to withstand the high stresses and temperatures of a performance engine.
- Trunnion Retainers: The upgrade kit also includes trunnion retainers, which are small clips that hold the trunnion in place on the rocker arm. These retainers are made of high-strength steel and help ensure that the trunnion stays securely in place during high RPM operation.
- Upgraded Trunnions: Some LS trunnion upgrade kits may also include upgraded trunnions themselves. These trunnions are designed to be stronger and more durable than the stock trunnions, allowing for improved performance and reliability.
- Improved Performance: Installing a top LS trunnion upgrade kit can help improve the strength and durability of the engine’s valvetrain. This can allow for higher RPM operation and reduced wear on the rocker arms and bearings, resulting in improved performance and longevity.
- Easy Installation: Most LS trunnion upgrade kits can be installed easily with basic hand tools and do not require any special machining or modifications to the engine. This makes them a popular choice for DIY enthusiasts and professional engine builders alike.
In summary, a top LS trunnion upgrade kit typically includes trunnion bearings, trunnion retainers, and may also include upgraded trunnions themselves. The upgrade can improve engine performance and reliability, and can be installed easily without requiring any special tools or modifications.
What are the Trunnion Upgrade Benefits for an LS Engine?
Upgrading to an LS trunnion kit provides several significant benefits. Firstly, it improves valvetrain stability and reliability by replacing the stock rocker arm trunnion with a more robust design. This helps prevent the rocker arms from shifting or becoming misaligned, which can cause premature wear and even engine failure.
Additionally, the LS trunnion kit reduces friction between the rocker arms and the trunnion, resulting in smoother operation and reduced wear over time. This can lead to increased engine longevity and improved performance.
Another advantage of upgrading to an LS trunnion kit is improved high-RPM performance. The enhanced stability and reduced friction allow the valvetrain to operate more efficiently at high engine speeds, resulting in better throttle response and increased horsepower.
Furthermore, an LS trunnion kit can help reduce maintenance and repair costs over time. With a more durable and reliable valvetrain, there is less need for costly repairs or replacements down the road.
Overall, upgrading to an LS trunnion kit is an excellent investment for anyone looking to improve the reliability, performance, and longevity of their LS engine.
How Do I Install a Trunnion Kit?
To install an LS trunnion kit, follow these steps:
- Remove the rocker arms and pushrods from the engine.
- Disassemble the rocker arms, removing the stock trunnion and bearings.
- Clean the rocker arms and install the new LS trunnion and bearings in place of the old ones.
- Apply a small amount of assembly lube to the trunnion and bearings.
- Reassemble the rocker arms.
- Install the new pushrods that came with the kit.
- Reinstall the rocker arms onto the engine.
- Adjust the valve lash to the proper specification.
- Repeat the process for the remaining rocker arms.
- After installation, it’s important to run the engine and check for any abnormal noises or issues.
It’s essential to follow the manufacturer’s instructions and torque specifications to ensure a proper installation. If you’re not confident in your ability to perform the installation, it’s best to seek the assistance of a professional mechanic or engine builder.
Frequently Asked Questions about LS Trunnion Upgrade Kits
What is an LS trunnion upgrade kit?
An LS trunnion upgrade kit is a set of replacement components designed to improve the durability and performance of the rocker arms in an LS engine. The kit includes new trunnion bearings, retaining clips, and rocker arm pedestals that replace the stock components that can fail over time, particularly in high-performance or racing applications.
Why should I upgrade my LS engine’s rocker arms with a trunnion upgrade kit?
Upgrading your LS engine’s rocker arms with a trunnion upgrade kit can provide several benefits. The new components are more durable and can withstand higher loads and increased stress compared to the stock components. They also reduce friction and wear on the rocker arms, which can improve performance and extend the lifespan of the engine. Additionally, the upgraded trunnion bearings can help prevent the common failure of the stock needle bearings, which can cause catastrophic engine damage.
Can I install an LS trunnion upgrade kit without removing the cylinder heads?
Yes, it is possible to install an LS trunnion upgrade kit without removing the cylinder heads, although it can be more challenging than doing so with the heads removed. The process typically involves using a valve spring compressor to compress the valve springs and remove the rocker arms, then replacing the trunnion bearings and other components before reassembling the rocker arms. However, accessing the rocker arms and other components can be more difficult with the heads in place, and some LS engine configurations may require additional modifications or custom tools to complete the installation without removing the heads.
What kind of performance gains can I expect from an LS trunnion upgrade kit?
While an LS trunnion upgrade kit is primarily designed to improve the durability and reliability of the engine’s rocker arms, it can also provide some performance gains. The upgraded trunnion bearings and other components can reduce friction and wear on the rocker arms, allowing them to move more smoothly and efficiently. This can result in improved valve lift and duration, which can increase horsepower and torque output. However, the actual performance gains can depend on a variety of factors, including the specific LS engine and the other components and modifications installed. Additionally, the primary benefit of an LS trunnion upgrade kit is typically improved durability and reliability, rather than raw performance gains.
Note that additional ways to improve performance can be a cam upgrade:
Will an LS trunnion upgrade kit increase the lifespan of my engine?
Yes, an LS trunnion upgrade kit can help increase the lifespan of your engine by improving the durability and reliability of the rocker arms. The upgraded trunnion bearings and other components can withstand higher loads and stress compared to the stock components, which can help prevent premature wear and failure. Additionally, the reduced friction and wear on the rocker arms can help extend the lifespan of other engine components, such as the lifters and camshaft.
Are LS trunnion upgrade kits compatible with all LS engine types?
Most LS trunnion upgrade kits are designed to be compatible with a wide range of LS engine types and configurations. However, it’s important to verify compatibility with your specific engine and application before purchasing a kit. Some LS engines may require specific modifications or custom parts to accommodate the upgraded trunnion bearings and other components, and some aftermarket rocker arms or other components may not be compatible with certain LS engines. Consult the manufacturer’s specifications and installation instructions to ensure compatibility.
Can I use my existing pushrods and lifters with an LS trunnion upgrade kit?
Yes, in most cases you can use your existing pushrods and lifters with an LS trunnion upgrade kit. The upgrade kit typically only replaces the trunnion bearings, retaining clips, and rocker arm pedestals, while leaving the pushrods and lifters in place. However, it’s important to ensure that the pushrods and lifters are in good condition and compatible with the upgraded rocker arms and other components. Some LS engine configurations may require specific pushrod lengths or other modifications, so consult the manufacturer’s specifications and installation instructions to ensure compatibility.
How do I know if my LS engine needs a trunnion upgrade kit?
There are a few signs that your LS engine may benefit from a trunnion upgrade kit. One common issue is excessive valve train noise, which can indicate worn or damaged rocker arms, bearings, or other components. If you’re experiencing decreased engine performance or efficiency, or if you’re planning to upgrade to a more aggressive camshaft or other high-performance components, a trunnion upgrade kit can help ensure that the rocker arms can handle the increased stress and loads. Additionally, if you’re experiencing engine damage or failure due to stock needle bearings failing, a trunnion upgrade kit can help prevent future issues. Consult with a trusted mechanic or LS engine expert to determine if a trunnion upgrade kit is right for your engine.
