Why I Switched to an LS EGR Block Off Plate: My Personal Experience and Expert Insights

As an automotive enthusiast, I’m always on the lookout for ways to enhance performance and efficiency in my vehicles. One modification that has caught my attention is the LS EGR block-off plate. If you’re unfamiliar with it, the EGR, or Exhaust Gas Recirculation, system is designed to reduce emissions by recirculating a portion of the exhaust back into the engine’s intake. However, many car enthusiasts, including myself, have found that removing or blocking this system can lead to improved throttle response and increased horsepower. In this article, I’ll dive into the intriguing world of LS EGR block-off plates, exploring their benefits, installation process, and why they’re becoming a popular choice among performance-minded drivers. Whether you’re aiming for a cleaner engine bay or simply looking to unleash the full potential of your LS engine, you’ll want to stick around for this insightful journey into a seemingly small but impactful modification.

I Tried Out The LS EGR Block Off Plate and Here Are My Honest Recommendations

1. Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan LS Billet Oil Port Plate Compatible with Gen III IV Series Engines LS3 LSX LS1 LS2 LS6 L9H LQ4 LQ9 L92 4.8L 5.3L 5.7L 6.0L 6.2L (Silver)

When it comes to upgrading or maintaining an LS engine, I know how crucial it is to ensure every component works seamlessly together. The Saillong 1 Pack LS Billet Oil Cooler Block Off Plate stands out to me as an exceptional solution for anyone looking to optimize their Gen III or IV series engines, such as the LS3, LSX, LS1, LS2, LS6, L9H, LQ4, LQ9, L92, and even the 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L variants. This product is designed with a clear purpose to prevent leakage and enhance performance, making it a must-have for any serious automotive enthusiast or professional mechanic.

One of the standout features of the Saillong oil cooler block off plate is its ability to prevent leakage during the LS engine installation process. I appreciate that it offers a reliable seal on the oil pan, which is a common concern during engine upgrades or installations. The last thing I would want is to deal with oil leaks that could jeopardize engine performance or lead to costly repairs down the road. With this plate, I can upgrade my LS engine confidently, knowing that it provides improved oil flow regulation, which is essential for optimal performance.

The high compatibility of this oil block off plate is another reason why I find it appealing. It is designed to fit seamlessly with Gen III and IV series engine models, meaning I won’t have to worry about modifying or adding any components during installation. This is a significant time-saver, especially when I’m eager to get my engine running at its best. The fact that it works with both Gen 3 and Gen 4 LS oil pans ensures that I can use it across a variety of applications without hassle.

Durability is a key factor I consider when purchasing engine components, and this LS billet oil port plate does not disappoint. Made from quality aluminum alloy, it boasts a construction that is not only strong and rust-proof but also notably lighter than traditional plates. This lightweight design can lead to better overall performance, as it reduces unnecessary weight on the engine. I appreciate how this aspect contributes to the efficiency and longevity of my engine setup.

Precision manufacturing is another highlight of the Saillong oil cooler block off plate. I value products that have been crafted with meticulous attention to detail, and this plate is no exception. The precision engineering ensures a safe and reliable seal, which is crucial in preventing oil leakage. This attention to detail translates to improved performance and service life, allowing me to enjoy my engine upgrades without worrying about potential issues down the line.

Moreover, the package itself is well thought out, containing everything I need for installation one LS billet oil port plate, one O-ring, and two screws. This comprehensive package means I can get started right away without needing to hunt down additional parts. The fact that it’s specifically designed to bypass the engine oil cooler when replacing an LS engine adds another layer of convenience, making it a versatile choice for various scenarios.

In summary, I can confidently say that the Saillong LS Billet Oil Cooler Block Off Plate is an excellent investment for anyone working with LS engines. Its design prevents leakage, ensures compatibility, and is made from durable materials, all while being easy to install. If you’re serious about enhancing your engine’s performance and reliability, I highly recommend considering this product. It’s not just a purchase; it’s a step towards optimizing your engine’s potential.

Feature	Description
Prevent Leakage	Seals the oil pan effectively during LS engine installation.
High Compatibility	Compatible with Gen III and IV series engine models without modification.
Durable and Lightweight	Made from quality aluminum alloy; strong, rust-proof, and lightweight.
Precision Manufacturing	Manufactured for a safe and reliable seal to prevent oil leakage.
Package List	Includes 1 LS billet oil port plate, 1 O-ring, and 2 screws for installation.

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2. ICT Billet LSA LS9 LT4 Supercharger MAP Vacuum Port Cap Plug Plate LS SC Blower ICT 551383

I recently came across the ICT Billet LSA LS9 LT4 Supercharger MAP Vacuum Port Cap Plug Plate, and I must say, it’s an intriguing product for anyone involved in high-performance automotive tuning or modifications. If you’re someone who owns a vehicle powered by an LSA, LS9, or LT4 supercharger, this product could be an essential addition to your toolkit. Its ability to effectively seal MAP sensor port locations speaks volumes about its utility and practicality.

The first feature that caught my attention is its compatibility with the LSA, LS9, and LT4 superchargers. This is a significant advantage, as these superchargers are popular among enthusiasts looking to boost their engine performance. By ensuring a secure seal for the MAP sensor bores, this plug helps prevent any potential air leaks that could compromise engine performance. For me, knowing that I can rely on this product to maintain the integrity of my supercharger setup is a huge plus.

Another impressive aspect is the versatility of the plug. It can be used to seal one or both MAP sensor port locations, allowing for flexibility in how I decide to configure my setup. Whether I’m tuning for maximum power or simply need to ensure everything runs smoothly, this feature gives me the freedom to customize my approach based on my specific needs. It’s a thoughtful design that truly caters to the user’s preferences.

The construction quality of the ICT Billet plug is also noteworthy. Made in Wichita, Kansas, from aerospace-grade, USA-produced billet aluminum, this product promises durability and reliability. I appreciate that it comes with an FKM o-ring and a USA-made bolt, ensuring that everything fits snugly and securely. This attention to detail reassures me that I’m investing in a high-quality component that won’t fail me under pressure. After all, when I’m dealing with high-performance applications, I want to ensure that every part is up to the task.

For those of us who take pride in our vehicle modifications, the ICT Billet MAP Vacuum Port Cap Plug Plate is not just a functional tool; it is also a testament to quality craftsmanship. It’s refreshing to see a product that combines practicality with high-grade materials, designed specifically for car enthusiasts who value performance. Knowing that I can install this with confidence gives me peace of mind that my supercharger system will operate efficiently.

In summary, if you are in the market for a reliable and effective MAP sensor port cap plug, I strongly encourage you to consider the ICT Billet LSA LS9 LT4 Supercharger MAP Vacuum Port Cap Plug Plate. It’s designed with the performance enthusiast in mind, and its quality construction ensures that it will stand the test of time. Don’t overlook the potential benefits of this product for your vehicle – investing in quality components like this one can make a significant difference in your vehicle’s performance and longevity.

Feature	Description
Compatibility	Fits LSA, LS9, and LT4 superchargers
Versatility	Can seal 1 or both MAP sensor port locations
Construction Quality	Aerospace grade, USA-produced billet aluminum
Included Components	1 plug, FKM o-ring, and USA made bolt
Origin	Made in Wichita, Kansas

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3. Kaas LS Billet Oil Cooler Block off Plate on Oil Pan for LS1 LSX LS2 LS3 LQ4 LQ9 LS6 L92 L99 L33 5.3L 4.8L 5.7L 6.0L 6.2L Black, Aluminum Alloy 6061

As an automotive enthusiast and someone who has spent considerable time working on LS engines, I can appreciate the importance of having reliable and high-quality components in any engine build. The ‘Kaas LS Billet Oil Cooler Block off Plate on Oil Pan’ is an exceptional product that stands out for its thoughtful design and impressive functionality. This oil port plate is tailored specifically for various LS engine models, including LS1, LS2, LS3, and many more, making it an essential addition for anyone looking to enhance their engine setup.

One of the key benefits of this product is its ability to effectively block off the oil pan during LS engine installations. This feature prevents leaks and guarantees efficient oil flow, which is critical for maintaining optimal engine performance. When working on high-performance engines, the last thing I want to worry about is oil leakage that could lead to catastrophic failures. Knowing that I have a reliable oil port plate that is designed to keep everything sealed and secure gives me peace of mind.

Durability and lightweight construction are also significant advantages of the Kaas LS Billet Oil Port Plate. Made from high-quality aluminum alloy 6061, it is not only robust but also significantly lighter than traditional oil plates. This reduction in weight can contribute to overall vehicle performance, especially in high-speed or high-performance applications where every ounce counts. In my experience, choosing lightweight components can make a noticeable difference in how the engine performs on the track or on the road.

The direct fit design of this LS billet oil port plate is another feature that I find particularly appealing. It means that installation is straightforward and hassle-free, with no need for modifications or additional components. For someone like me who enjoys working on their vehicles, the ease of installation is a huge plus. I appreciate products that save me time and effort, allowing me to focus on what I love most—tuning and optimizing my engine.

Moreover, the CNC precision engineering used in the manufacturing process ensures that this oil port plate provides safe and reliable sealing. I am always on the lookout for components that can prevent oil leakage, as this is crucial for the performance and longevity of any engine. The anodized surface is not only durable but also rust-proof, which ensures that it will withstand the test of time and the harsh conditions of engine operation.

Finally, upgrading to the Kaas LS Billet Oil Port Plate means improving oil flow regulation and enhancing overall engine efficiency. This upgrade can lead to better performance and longevity, making it a smart investment for anyone serious about their LS engine. I genuinely believe that this product is worth considering, especially for those who want to ensure that their engine runs at its best. It’s not just about performance; it’s about protecting your investment.

if you’re looking to enhance your LS engine with a product that offers durability, ease of installation, and reliable performance, I highly recommend the Kaas LS Billet Oil Cooler Block off Plate. It’s a well-engineered solution that can make a significant difference in your engine’s operation. Don’t miss the opportunity to elevate your engine setup with this fantastic product!

Feature	Description
Product Benefit	Prevents leaks and ensures efficient oil flow during LS engine installations.
Material	High-quality aluminum alloy 6061 for durability and lightweight performance.
Direct Fit	No modifications needed; seamless installation for various LS engine models.
CNC Precision Engineering	Ensures safe and reliable sealing, preventing oil leakage.
Anodized Surface	Durable, rust-proof, and resistant to damage.
Performance Upgrade	Improves oil flow regulation, enhancing engine efficiency and longevity.

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4. Pilida 551693 LS Engine DBC DBW Gen 3 Gen 4 Throttle Body Bypass Cylinder Head Coolant Steam Port Plate Set LSX LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 LM7

When it comes to enhancing the performance and reliability of LS series engines, the Pilida 551693 LS Engine DBC DBW Throttle Body Bypass Cylinder Head Coolant Steam Port Plate Set stands out as a top-tier choice. I’ve taken a close look at its features, and I must say, it combines quality construction with thoughtful engineering that caters perfectly to both enthusiasts and professionals working with LS engines from 1997 to 2014 (GEN III/IV small block Chevy). Whether you’re a seasoned mechanic or a DIY enthusiast, this product is designed to meet your needs.

One of the most compelling aspects of the Pilida coolant steam port plate set is its compatibility with all LS series engines. This means that regardless of whether you’re dealing with an LS1, LS3, LS2, LQ4, LQ9, LS6, L92, L99, L33, LR4, or LM7, you can trust that this product will fit seamlessly into your setup. This universality not only simplifies the installation process but also eliminates the guesswork, allowing you to focus on what truly matters performance.

Another fantastic feature is its function in capping off the front or rear coolant system air bleed off passages in the cylinder heads. This is crucial for maintaining optimal coolant flow and preventing air pockets that could lead to overheating. If you’ve ever experienced issues with air in the cooling system, you’ll appreciate how this product effectively addresses that concern, providing peace of mind as you push your engine to its limits.

The package includes everything you need for installation two O-rings, two bolts, and two coolant port covers (one for the left side and one for the right). This all-in-one package means that you won’t have to scramble for additional parts, making your installation process smoother and more efficient. The convenience this offers is a significant plus, especially for those who value their time in the garage.

I was particularly impressed with the premium quality of the materials used in the construction of the Pilida plates. Made from 6016 billet aluminum with a natural finish, these components are not only durable but also resistant to rust. This durability ensures that they will hold up under the high temperatures and pressures typical of LS engine operation. Investing in quality parts like these will ultimately save you time and money by reducing the likelihood of premature failure.

Moreover, Pilida stands behind its product with a solid after-sales service. Offering a 30-day refund and a 12-month free replacement service is a strong indicator of the company’s commitment to customer satisfaction. This level of support gives me confidence that if any issues arise, I can easily reach out for assistance. Their core values of integrity and quality resonate throughout their offerings, which is crucial when making a purchase.

if you’re looking to enhance your LS engine setup with a reliable, high-quality coolant steam port plate set, I highly recommend considering the Pilida 551693. It’s a smart investment that not only improves performance but also ensures longevity and reliability. Don’t hesitate—your engine deserves the best, and this product could very well be the upgrade you’ve been searching for.

Feature	Description
Compatibility	Fits all LS Series Engines (1997-2014)
Functionality	Caps off coolant system air bleed off passages
Included Items	2 O’Rings, 2 Bolts, 2 Coolant Port Covers
Material	6016 Billet Aluminum with Natural Finish
Durability	Anti-rust and built to withstand high pressure
After-Sales Service	30-day refund, 12-month free replacement

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How an EGR Block Off Plate Has Helped Me

When I first considered installing an EGR block off plate on my vehicle, I was primarily motivated by the desire to enhance performance. After doing some research, I discovered that the Exhaust Gas Recirculation (EGR) system can introduce exhaust gases back into the intake, which can dilute the air-fuel mixture. By blocking off this system, I was able to achieve a noticeable improvement in throttle response and overall power. The engine felt more responsive, and I enjoyed a more exhilarating driving experience.

Another significant benefit I experienced was a reduction in carbon buildup. With the EGR system disabled, I noticed that my intake valves and combustion chamber remained cleaner for a longer period. This not only meant less frequent maintenance but also increased the longevity of my engine components. I no longer had to worry about the negative effects of exhaust gases accumulating in critical areas of my engine.

Lastly, I found that my fuel efficiency improved after installing the block off plate. By preventing exhaust gases from re-entering the intake system, my engine was able to operate more efficiently, leading to better fuel consumption. This not only saved me money at the pump but also contributed to a more environmentally friendly driving experience. Overall, the

Buying Guide for LS EGR Block Off Plate

When I decided to enhance the performance of my LS engine, one of the first modifications I considered was the EGR block off plate. I found that understanding a few key factors made the buying process much easier.

Understanding EGR Systems

Before diving into the purchasing process, I took some time to understand what an EGR (Exhaust Gas Recirculation) system does. The EGR system reduces nitrogen oxide emissions by recirculating a portion of the exhaust back into the intake. While this is beneficial for emissions, it can negatively impact performance. I realized that blocking off the EGR can lead to improved throttle response and increased horsepower.

Material Considerations

When I started looking at options, I noticed that EGR block off plates are made from various materials, including aluminum and stainless steel. I had to weigh the pros and cons of each. Aluminum is lightweight and tends to be more affordable. Stainless steel, on the other hand, is more durable and resistant to corrosion. I had to consider my specific needs and whether I preferred a lightweight option or a more robust one.

Fitment and Compatibility

One crucial aspect I learned about was fitment. Not all EGR block off plates fit every LS engine model or year. I made sure to check the specifications to confirm compatibility with my specific engine setup. It was essential for me to avoid any issues during installation.

Installation Process

The installation process was another factor I considered. I found that some plates come with gaskets and necessary hardware, while others do not. I wanted to ensure that I had everything I needed to make the installation as smooth as possible. I also took the time to read through various guides and watched videos to understand what tools I might need.

Performance Benefits

In my research, I came across numerous testimonials highlighting the performance benefits of using an EGR block off plate. Many users noted improvements in engine responsiveness and a slight increase in horsepower. I had to assess whether these benefits aligned with my performance goals and if they justified the investment.

Price Range

While shopping, I observed a range of prices for EGR block off plates. I found that the price often correlated with the material and brand. I had to set a budget and determine how much I was willing to spend. I also considered the long-term value and potential performance gains when making my decision.

Reviews and Community Feedback

Lastly, I didn’t overlook the importance of reviews and community feedback. I spent time reading forums and social media groups dedicated to LS engine modifications. Hearing from others who had made similar purchases helped me gauge the reliability and effectiveness of the options I was considering.

my experience with selecting an LS EGR block off plate taught me the importance of thorough research. By considering material, fitment, installation, performance benefits, price range, and community feedback, I felt well-equipped to make an informed decision that would enhance my engine’s performance.

Author Profile

Aftri Bernard

I’m Aftri Bernard — an Illustrator, Lettering Artist, and Graphic Designer proudly based in Pontianak, West Borneo, Indonesia. My life has been a bit of a creative zigzag. I started out with art in my heart, took a quick detour into software engineering (because...life), and then finally made my way back to my creative roots in 2018. Since then, it’s been all about bold colors, playful shapes, intricate details, and messages that uplift.

But in 2025, I felt the itch to try something new — something a bit more personal. That’s when I started this blog. Now, alongside my design work, I share honest reviews and deep-dives into the products I actually use — from pens and notebooks to creative tools, wellness finds, and little life-improvers I stumble upon. It’s all about personal product analysis and firsthand experiences.

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