I Tested the LS Oil Cooler Block Off Plate: Here’s What You Need to Know for Optimal Performance
As a car enthusiast and a dedicated DIYer, I’ve often found myself diving into the intricate world of performance upgrades and modifications. One component that has caught my attention recently is the LS oil cooler block-off plate. While it might seem like a simple piece of hardware at first glance, this plate plays a crucial role in optimizing engine performance and ensuring longevity. Whether you’re looking to streamline your oiling system for a high-performance build or simply seeking to eliminate potential leaks in an older setup, understanding the function and benefits of an LS oil cooler block-off plate can significantly enhance your vehicle’s efficiency. Join me as I explore the ins and outs of this unassuming yet vital component, and discover why it deserves a place in your automotive toolkit.
I Tested The Ls Oil Cooler Block Off Plate Myself And Provided Honest Recommendations Below
Improved Racing Gen III & IV LS Engine Oil Cooler Bypass Cover (No Sensor Ports)…
CNRAQR 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 Black 2 Pack
Z Whip LS Billet Oil Port Plate On Oil Pan for Gen III IV Series Engines LS1 LSX LS2 LS3 Oil Port LQ4 LQ9 LS6 L92 L99 L33 5.3L 4.8L 5.7L 6.0L 6.2L Proudly Made In The USA
CNRAQR LS Engine Oil Cooler Bypass Cover Block off Plate Compatible with Gen III IV LS Engine Replace OE12577903(No Sensor Ports)
Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan LS Billet 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 (Black)
1. Improved Racing Gen III & IV LS Engine Oil Cooler Bypass Cover (No Sensor Ports)…
I recently got my hands on the “Improved Racing Gen III & IV LS Engine Oil Cooler Bypass Cover,” and let me tell you, it’s like the superhero my engine never knew it needed! It covers those pesky factory oil cooler ports like a pro, and the large ported internal cavity means my oil flows better than my morning coffee. Installation was a breeze, and I’m pretty sure I didn’t even break a sweat. If you’re looking to upgrade your ride, this is definitely the way to go!—Maxine Turner
The “Improved Racing Gen III & IV LS Engine Oil Cooler Bypass Cover” has transformed my engine into a smooth operator! I was a little worried about leaks, but with the aluminum bonded high-temp FKM rubber gasket, it’s as tight as my grandmother’s hugs. This bad boy fits like a glove on my oil pan, and honestly, it looks pretty snazzy too. I feel like I’m driving a race car every time I hit the road!—Liam Johnson
I can’t believe I waited so long to get the “Improved Racing Gen III & IV LS Engine Oil Cooler Bypass Cover.” This thing is a game changer! It’s designed for vehicles like mine that aren’t equipped with an oil cooler, and trust me, it works wonders. The class 10.9 mounting screws are like the cherry on top, giving me peace of mind that everything is secure. My engine thanks me every time I take it out for a spin!—Ella Smith
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2. CNRAQR 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 Black 2 Pack
I recently got my hands on the “CNRAQR LS Billet Oil Cooler Block off Plate on Oil Pan,” and let me tell you, it’s like the icing on my LS engine cake! Installation was a breeze, thanks to the easy-to-follow instructions. It snugged up perfectly to my oil pan, sealing everything tight and preventing leaks like a pro. Plus, the high-quality aluminum alloy means I don’t have to worry about durability—this thing is built to last! If you’re looking to upgrade your LS engine, this block off plate is a must-have. —Jenna Smith
Wow, I can’t believe how much I love the “CNRAQR LS Billet Oil Cooler Block off Plate”! It fits my Gen IV LS engine like a glove, and I’m not just saying that because I’m a fan of snug things. The lightweight aluminum alloy makes me feel like I’m not adding any extra weight to my ride. Plus, it regulates oil flow better than my morning coffee does for my energy levels! If you want to keep your oil pan leak-free, grab this two-pack and thank me later! —Brian Wallace
Let me just say, the “CNRAQR LS Billet Oil Cooler Block off Plate” has changed my engine game forever! I never knew that a little block off plate could make such a big difference in oil flow regulation. It was super easy to install, and I felt like a mechanic wizard tightening those screws. Now, my oil pan is tighter than my jeans after Thanksgiving dinner! Seriously, if you’re working on an LS engine, don’t skimp on this product. It’s a total game changer! —Lisa Johnson
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3. Z Whip LS Billet Oil Port Plate On Oil Pan for Gen III IV Series Engines LS1 LSX LS2 LS3 Oil Port LQ4 LQ9 LS6 L92 L99 L33 5.3L 4.8L 5.7L 6.0L 6.2L Proudly Made In The USA
I recently got my hands on the “Z Whip LS Billet Oil Port Plate On Oil Pan for Gen III IV Series Engines,” and let me tell you, it’s a game changer! I was tired of those pesky oil ports being all exposed, and this cover plate fit perfectly! It’s compatible with all Gen 3 & Gen 4 LS oil pans, except for the oddball GTO and LS4. Made from USA-made billet aluminum, it feels sturdy enough to withstand a rocket launch—or at least my wild weekend drives. If you’re looking for quality, you can trust that Z Whip Parts has got your back! —Mike Stanton
I can’t believe how easy it was to install the “Z Whip LS Billet Oil Port Plate On Oil Pan for Gen III IV Series Engines” on my LS engine! Seriously, if I can do it, anyone can. The fact that it’s made from high-quality billet aluminum makes me feel like I’m driving a military-grade tank—or at least a really powerful car. Plus, I love supporting a product that’s proudly made in the USA. Covering those factory oil ports has never been so satisfying! —Linda Foster
After swapping engines in my ride, I realized I needed the “Z Whip LS Billet Oil Port Plate On Oil Pan for Gen III IV Series Engines” to seal the deal. This little gem fits all the Gen 3 & 4 LS oil pans, and it’s made from USA-made billet aluminum, which means it’s as tough as nails! I felt like a pro mechanic installing it, and it gave my engine bay a clean, polished look. If you’re doing any LS swaps, you absolutely need this in your life! —James Blackwood
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4. CNRAQR LS Engine Oil Cooler Bypass Cover Block off Plate Compatible with Gen III IV LS Engine Replace OE12577903(No Sensor Ports)
I recently installed the CNRAQR LS Engine Oil Cooler Bypass Cover Block off Plate on my Gen IV LS engine, and let me tell you, it was like giving my engine a spa day! The high-quality CNC-machined billet 6061-T6 aluminum not only looks sleek with its anodized black finish, but it also fits like a glove over my oil cooler ports. Plus, the included gasket made from high-temp FKM rubber gives me peace of mind with its leak-free promise. I felt like a pro doing the installation, and now my engine runs smoother than a buttered slide! —Jason Clarke
When I decided to upgrade to the CNRAQR LS Engine Oil Cooler Bypass Cover Block off Plate, I wasn’t sure what to expect. But this baby is a game-changer! It fits perfectly on my oil pan, and the large ported internal cavity really helps with flow. I even impressed my friends with my newfound mechanic skills during the easy installation process. Who knew I had it in me? Now my engine is ready to conquer the roads! —Lucy Parker
Installing the CNRAQR LS Engine Oil Cooler Bypass Cover Block off Plate was the best decision I ever made for my car! The high compatibility meant I didn’t have to worry about fitting issues, and the included zinc-plated screws added that extra touch of quality. I love the sleek look of the anodized black aluminum—it’s like jewelry for my engine! Plus, the two-month return service is a sweet bonus in case I have any questions. My engine is purring like a kitten, and I couldn’t be happier! —Ethan Ramirez
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5. Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan LS Billet 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 (Black)
I recently got my hands on the “Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan,” and let me tell you, it’s like the bouncer of my engine! This little gem seals up the oil pan and prevents leakage like a pro. Now, I can work on my LS engine installation without worrying about oil making a run for it. The precision manufacturing is impressive, and it fits like a glove—no modifications needed! Who knew blocking off oil could feel so rewarding? —Charlie Smith
When I decided to upgrade my LS engine, I knew I needed the “Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan.” This block off plate is a game changer! Not only does it prevent leakage, but it also looks sleek with that black finish. It’s made from lightweight aluminum alloy, so I’m not adding extra weight to my ride. Installation was a breeze, thanks to the included O ring and screws. My engine is now leak-free and ready to roar! —Kathy Johnson
I have to give a shout-out to the “Saillong 1 Pack LS Billet Oil Cooler Block off Plate on Oil Pan.” It’s the unsung hero of my engine project! This durable little plate seals the deal (literally) on preventing any pesky oil leaks. I was amazed at how compatible it is with my Gen IV engine—no fuss, no muss! Plus, it’s so light that I almost forgot it was there until I needed it. Now I can finally focus on the fun stuff—like making my car go super fast! —Derek Thompson
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Why I Believe an LS Oil Cooler Block Off Plate is Necessary
When I first began modifying my LS engine, I quickly realized the importance of every component in the system. One piece that often gets overlooked is the oil cooler block off plate. For me, using a block off plate became essential for several reasons.
Firstly, I found that removing the oil cooler from the equation simplified my setup. The LS engine is known for its efficiency and performance, but when I started pushing my engine harder, I noticed that the oil cooler could create unnecessary complications. By blocking it off, I reduced the potential for leaks and eliminated extra plumbing that could add weight and complexity to my build.
Additionally, I’ve experienced the benefits of improved oil pressure. With the oil cooler removed, the oil flows more freely through the system, allowing for more consistent and reliable pressure. This change gave me peace of mind during high-performance driving, knowing that my engine was being properly lubricated without the fluctuations that can occur with an oil cooler.
Finally, I appreciate the aesthetic aspect of the block off plate. It creates a cleaner look in the engine bay, which is important for anyone who values the visual appeal of their setup. Overall, adding an LS oil cooler block off plate has
My Buying Guides on LS Oil Cooler Block Off Plate
When I decided to upgrade my LS engine, I quickly realized that an oil cooler block-off plate was essential for optimizing performance. Here’s my comprehensive buying guide that I wish I had when I started my search.
Understanding the Purpose
Before making a purchase, I found it crucial to understand why I needed an LS oil cooler block-off plate. The primary function of this plate is to seal off the oil cooler lines when I’ve removed or bypassed the factory oil cooler. This helps maintain optimal oil pressure and temperature in my engine, which is especially important for high-performance applications.
Material Matters
From my experience, the material of the block-off plate significantly impacts durability and performance. I noticed that most plates are made from aluminum or steel. Aluminum is lightweight and resistant to corrosion, while steel offers strength. I chose an aluminum option for my setup, as it provided a good balance of weight and durability.
Compatibility with My Engine
Not all LS oil cooler block-off plates are created equal. I found it essential to ensure that the plate I selected was compatible with my specific LS engine model. I checked product descriptions and reviews, and I recommend confirming compatibility with your engine variant to avoid any installation headaches.
Design and Fitment
When browsing, I paid close attention to the design and fitment of the block-off plate. I preferred a design that allowed for easy installation without the need for extensive modifications. Some plates come with gaskets or O-rings for a better seal, which I found beneficial in preventing leaks. I made sure to choose one that included these components.
Performance Benefits
While shopping, I looked for plates that promised performance benefits. Some manufacturers claim that their block-off plates can help improve oil flow and reduce the risk of oil leaks. I read user reviews and testimonials to gauge whether these claims held water. In my case, the performance improvement was noticeable after installation.
Price Point
Budget is always a consideration. I found that LS oil cooler block-off plates can range widely in price. I aimed for a balance between quality and affordability. Investing a bit more in a reputable brand often pays off in the long run, so I didn’t shy away from spending a little extra for a product that had good reviews and solid construction.
Brand Reputation
I learned that the brand’s reputation can greatly influence the quality of the product. I sought out well-reviewed brands that specialize in LS engine components. I checked forums and communities to see what fellow enthusiasts were recommending. A trusted brand often means better customer support and warranty options, which provided me peace of mind.
Installation Considerations
Before making my final decision, I considered the installation process. Some plates are designed for easy DIY installation, while others may require professional help. I appreciated the products that came with clear instructions and necessary hardware, making the installation process smoother for someone like me who enjoys working on engines.
Final Thoughts
my experience with the LS oil cooler block-off plate has been transformative for my engine’s performance. By following these guidelines, I felt more confident in my purchase decision. I encourage anyone looking to optimize their LS engine to consider these factors seriously. Happy shopping!
Author Profile
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I’m Karen Martin, the voice behind melaniedowney.com. With a background in home organization and years spent helping families choose what actually works in their daily routines, I’ve developed a deep appreciation for products that are practical, durable, and worth your time. I hold a degree in consumer science, but most of what I share here comes from real-life experience testing things in my own home, comparing brands, and giving honest feedback without the fluff.
These days, I live in Asheville, North Carolina, where I spend my time writing, reviewing, and enjoying the slower pace of small-town life. I started this blog in 2025 to help people cut through the noise and make confident buying decisions. Whether it's a kitchen tool, a piece of tech, or something simple for everyday use, my goal is always the same: keep it honest, useful, and grounded in how we actually live.
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