Transforming My Ride: My Expert Journey from LS to TH400 Flexplate – What You Need to Know!

When I first embarked on my journey into the world of high-performance automotive engineering, I quickly realized that every component plays a crucial role in the symphony of power and precision. Among these components, the flexplate stands out as a pivotal piece in the puzzle, especially when it comes to swapping an LS engine with a TH400 transmission. The LS to TH400 flexplate isn’t just a simple part; it’s the bridge that connects modern engine technology with classic transmission reliability. In this article, I’ll explore the fascinating interplay between these two powerful components, uncovering the nuances that make this conversion both exciting and essential for enthusiasts looking to enhance their vehicle’s performance. Whether you’re a seasoned mechanic or a curious novice, understanding the significance of the LS to TH400 flexplate will empower you to take your automotive projects to the next level. Join me as we delve into this critical topic that blends innovation with tradition, and discover how to make your high-performance dreams a reality.

I Personally Evaluated The LS To TH400 Flexplate And Share My Honest Recommendations Below

1. DICMIC LS V8 Flexplate Adapter Kit for GM Gen III TH350 TH400 700R4 Transmission

As a car enthusiast and someone deeply involved in the world of automotive performance, I often find myself on the lookout for parts that can enhance my vehicle’s capabilities. Recently, I came across the DICMIC LS V8 Flexplate Adapter Kit for GM Gen III TH350 TH400 700R4 Transmission, and I felt compelled to dive into an analysis of its features and benefits. This kit stands out as a comprehensive solution for anyone looking to upgrade their engine transmission setup, especially if you’re working with GM LS engines. Let me share why I believe this product is worth considering.

First and foremost, the package includes everything one might need for a seamless installation a Trans Adapter Flexplate, six Gen III LS Flexplate Bolts, an LS Crank Sleeve Adapter, and a Torque Converter Bolt Kit. This level of inclusiveness is a huge plus for DIYers and professional mechanics alike, as it eliminates the need for additional purchases and potential compatibility issues. When I think about the hassle and time saved from having all necessary components in one package, it becomes clear that this kit is designed with the user’s convenience in mind.

Compatibility is another strong point of the DICMIC Flexplate Adapter Kit. It works with both 10.75″ and 11.066″ (11.1″) torque converter bolt patterns, which is ideal for those of us who may have varying setups. The ability to utilize the factory LS starter is a game changer, as it significantly reduces conversion costs. I can’t stress enough how important it is to have a product that allows for such flexibility, especially when dealing with high-performance builds or restoration projects. This feature can save hours of labor and frustration, making the overall conversion process smoother and more efficient.

Moreover, the flexplate in this kit is .035″ thicker than stock, which is not just an arbitrary measurement but one that meets SFI 29.1 certification. For those who may not be familiar, this certification is crucial as it ensures that the component meets high safety standards. When I’m pushing my vehicle to its limits, knowing that the parts I’ve installed are certified for safety gives me peace of mind. This is especially relevant for track enthusiasts or anyone who enjoys spirited driving.

In terms of compatibility, the kit is designed for a wide range of GM LS engines, including the LS1, LS6, LS2, and various truck engines like the L33, L59, LM4, LM7, LQ4, LQ9, and LR4. This extensive compatibility means that whether I’m working on a performance car or a truck project, this adapter kit can bridge the gap between LS engines and transmissions that originally came from non-LS setups. It opens up a world of possibilities for enhancing engine performance and improving drivetrain efficiency.

After reviewing the features and benefits of the DICMIC LS V8 Flexplate Adapter Kit, I’m convinced that this product is not just an accessory, but a smart investment for anyone serious about their automotive projects. The thoughtful design, high-quality materials, and comprehensive package make it a standout option in the market. If you’re considering an LS engine swap or upgrade for your vehicle, I highly recommend that you give this kit a closer look. It might just be the missing piece that you need to take your build to the next level!

Feature	Description
Package Includes	Trans Adapter Flexplate, 6x Gen III LS Flexplate Bolts, LS Crank Sleeve Adapter, Torque Converter Bolt Kit
Torque Converter Compatibility	Works with 10.75″ and 11.066″ (11.1″) bolt patterns
Starter Compatibility	Works with factory LS starter to reduce conversion costs
Certification	.035″ thicker than stock, meets SFI 29.1 certification
Engine Compatibility	Compatible with 1997-07 GM LS1/LS6 engines and several truck engines
Transmission Compatibility	Adapts LS engines to TH350, 700R-4, 200-4R, 4L60, and Powerglide transmissions

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Dirty Dingo LS Conversion Flexplate with Bolts

As an automotive enthusiast, I understand the importance of having reliable and high-quality components in a vehicle, especially when it comes to performance upgrades. The ‘Dirty Dingo LS Conversion Flexplate with Bolts’ is an excellent choice for anyone looking to enhance their LS engine swap project. This flexplate is engineered with precision and designed specifically for those who want to optimize their vehicle’s performance while ensuring durability and reliability.

One of the standout features of this flexplate is the inclusion of ARP bolts. These bolts are known for their superior strength and reliability compared to standard hardware. When I consider the stresses that an engine undergoes, having high-quality bolts is essential. The ARP bolts will provide me with peace of mind, knowing that they can handle the high torque and vibrations that come from a powerful LS engine. This means I can focus on enjoying my ride rather than worrying about potential failures due to subpar components.

The Dirty Dingo LS Conversion Flexplate is designed to work with an 11 1/2″ torque converter, which is a significant specification for anyone looking to optimize their engine’s performance. This size is ideal for creating a strong connection between the engine and transmission, allowing for smooth power transfer. I appreciate that this flexplate is tailored for performance applications, meaning it will help me achieve the best possible results from my engine swap. This compatibility with a common torque converter size makes it a versatile option for many enthusiasts, including myself.

Another noteworthy feature is the inclusion of a crank spacer. This addition is crucial for ensuring proper alignment and fitment of the flexplate with the engine. It eliminates potential issues that could arise from misalignment, which could lead to excessive wear on components or even catastrophic failure. Knowing that the Dirty Dingo flexplate comes with this essential component gives me confidence that my installation process will be straightforward and successful.

In summary, the Dirty Dingo LS Conversion Flexplate with Bolts is an outstanding product for anyone engaged in an LS engine swap. Its combination of ARP bolts, compatibility with an 11 1/2″ torque converter, and the inclusion of a crank spacer makes it a comprehensive and reliable choice. For those of us who take our vehicles seriously, investing in quality components like this flexplate is a no-brainer. I genuinely believe that choosing this product will enhance my vehicle’s performance and reliability, making my driving experience even more enjoyable.

To help visualize the benefits of the Dirty Dingo LS Conversion Flexplate, I’ve outlined its key features in the table below

Feature	Description
ARP Bolts	High-strength bolts that ensure reliability and durability under stress.
Torque Converter Compatibility	Designed for use with an 11 1/2″ torque converter, optimizing power transfer.
Crank Spacer Included	Ensures proper alignment and fitment, reducing the risk of wear and failure.

With all these features in mind, I feel confident in recommending the Dirty Dingo LS Conversion Flexplate with Bolts to anyone considering an LS engine swap. It’s a smart investment that I believe will pay off in the long run, providing both performance enhancements and peace of mind. Don’t miss out on the opportunity to elevate your project—this flexplate could be just what you need to take your vehicle to the next level!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. LS Flexplate Adapter w/bolts Kit Compatible with GM Gen lll LS1/ LS6/ LS2 Engines And 5.3/6.0 Truck Engines, TH350 700R4 200-4R 4L60 transmission adapter Kit Replace 91604000 57534610

I recently came across the LS Flexplate Adapter w/bolts Kit, and I must say, it’s a game changer for anyone looking to work on their GM Gen III LS1, LS6, or LS2 engines, as well as the 5.3 and 6.0 truck engines. If you’re in the automotive industry, a DIY enthusiast, or just someone looking to upgrade or maintain your vehicle, this adapter kit is something you should definitely consider. It bridges the gap between your engine and transmission, ensuring compatibility and optimal performance, which is crucial for any vehicle build or repair project.

One of the standout features of this LS Flexplate Adapter is its compatibility with a wide range of engines and transmissions. This means that whether you’re working on a classic muscle car or a modern truck, this kit will meet your needs. The adapter is specifically designed to work with TH350, 700R4, 200-4R, and 4L60 transmissions, making it a versatile option for automotive professionals and enthusiasts alike. This flexibility is essential, as many of us often find ourselves working on different projects that require various components.

Another advantage of this adapter kit is its ease of installation. The inclusion of bolts in the kit means that you have everything you need to get started right away. No need for additional purchases or trips to the hardware store, which can be a significant hassle when you’re in the middle of a project. Additionally, the straightforward design allows for a hassle-free installation process, reducing the time and effort required. This is particularly beneficial for those who may not have extensive mechanical experience; you can feel confident tackling this project yourself.

Durability is also a critical factor for any automotive component, and this LS Flexplate Adapter does not disappoint. Made from high-quality materials, it promises longevity and reliable performance. When you invest in parts for your vehicle, you want to ensure they will stand the test of time and perform under pressure. This adapter is built to withstand the rigors of daily driving and high-performance use, so you can rest assured that you’re making a sound investment.

In terms of value, the LS Flexplate Adapter w/bolts Kit offers a competitive price point considering the features and benefits it provides. When I compare it to other products on the market, I find that this kit stands out for its quality and versatility. For anyone serious about their automotive projects, this is an investment that pays off in terms of both performance and convenience.

Overall, I believe that the LS Flexplate Adapter w/bolts Kit is an excellent choice for anyone looking to enhance their vehicle’s performance and reliability. Whether you’re a seasoned mechanic or a weekend warrior, this adapter will simplify your installation process and ensure that your engine and transmission work seamlessly together. I highly recommend considering this product; it could very well be the missing piece in your automotive puzzle. Don’t hesitate to grab this kit and elevate your vehicle’s performance today!

Feature	Description
Compatibility	Compatible with GM Gen III LS1, LS6, LS2 engines and 5.3/6.0 truck engines.
Transmission Support	Works with TH350, 700R4, 200-4R, and 4L60 transmissions.
Installation	Includes bolts for easy installation; no additional purchases needed.
Durability	Constructed from high-quality materials for long-lasting performance.
Value	Offers competitive pricing with excellent features and benefits.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Michigan Motorsports Black LS Flexplate 6-Bolt Dished SFI 29.1 High Inertia Design – Fits 4.8L 5.3L 5.7L. 6.0L 6.2L TH350 TH400 700R4 4L60 4L80 6L80

As someone who has spent considerable time in the automotive world, I can confidently say that the Michigan Motorsports Black LS Flexplate is a game-changer, especially for those of us who are passionate about performance and reliability. This product is engineered for high performance and is specifically designed to fit a variety of GM engines, including the 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L, making it a versatile choice for many car enthusiasts and builders alike.

One standout feature of this flexplate is its 6-bolt dished design, which enhances the structural integrity and durability of the plate. This aspect is particularly important because the flexplate is responsible for transferring power from the engine to the transmission. A reliable flexplate ensures that this power transfer is smooth and efficient, which ultimately contributes to the overall performance of the vehicle. The SFI 29.1 certification is also a significant advantage; it assures me that this product meets rigorous safety and performance standards, which is critical when I’m pushing my vehicle to its limits on the track or the road.

Another great aspect of the Michigan Motorsports flexplate is its high inertia design. This feature provides better torque multiplication, which can lead to improved acceleration and responsiveness. For those of us who enjoy the thrill of speed, this means that our vehicles will not only perform better, but they will also feel more exhilarating to drive. Whether I’m using it for daily driving or competitive racing, having that extra boost in performance is invaluable.

Moreover, this flexplate is compatible with a wide range of transmissions, including TH350, TH400, 700R4, 4L60, 4L80, and 6L80. This compatibility makes it a fantastic option for anyone looking to upgrade or swap out their existing flexplate without worrying about fitment issues. I appreciate that I can install this part with confidence, knowing that it will work seamlessly with my existing setup.

In terms of installation, I found the Michigan Motorsports flexplate to be straightforward and user-friendly. It’s crucial for me to have parts that don’t complicate the installation process, and this flexplate delivers on that front. It’s a solid investment that will save time and hassle in the long run, allowing me to spend more time enjoying my vehicle rather than wrestling with difficult components.

Considering all these features and benefits, I genuinely believe that the Michigan Motorsports Black LS Flexplate is an excellent investment for anyone who values performance and reliability in their vehicle. Whether you’re a seasoned racer or a weekend enthusiast, this product is designed to enhance your driving experience. I can’t emphasize enough how important it is to equip your vehicle with high-quality components like this flexplate. It’s not just a part; it’s a crucial element that contributes to the overall performance and enjoyment of driving.

Feature	Description
Design	6-Bolt Dished Design for enhanced durability
Certification	SFI 29.1 certified for safety and performance
Inertia	High Inertia Design for improved acceleration
Compatibility	Fits multiple GM engines and various transmissions
Installation	User-friendly installation process

if you’re looking to boost your vehicle’s performance while ensuring reliability and safety, I wholeheartedly recommend considering the Michigan Motorsports Black LS Flexplate. It’s a product designed with the enthusiast in mind, and I believe it will make a noticeable difference in your driving experience. Don’t miss out on the opportunity to enhance your ride!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why the LS to TH400 Flexplate is a Game Changer for My Build

When I decided to swap my engine for an LS, I quickly realized that I needed a reliable way to connect it to my TH400 transmission. That’s when I came across the LS to TH400 flexplate. This component has been a total game changer for my build, and I want to share why it might be beneficial for you too.

First off, the LS to TH400 flexplate ensures that my engine and transmission work seamlessly together. I was initially worried about compatibility issues, but this flexplate is specifically designed to bridge that gap. It allows me to harness the power of the LS engine while taking advantage of the robust performance of the TH400 transmission. This combination has significantly improved my vehicle’s acceleration and overall drivability.

Another major advantage I noticed is the reduction in vibration and noise. I had experienced some harsh vibrations with other setups, but the LS to TH400 flexplate has minimized those issues. It’s engineered to provide a smoother engagement between the engine and transmission, which has made my driving experience much more enjoyable. Plus, knowing that I have a durable, high-quality component in my build gives me peace of mind when I’m out on the road or

Buying Guide for LS to TH400 Flexplate

Understanding the LS to TH400 Flexplate

When I first started my project, I quickly learned that a flexplate is crucial for connecting the engine to the transmission. The LS to TH400 flexplate allows me to mate my LS engine with a TH400 transmission, ensuring smooth operation and reliable performance. It’s essential to understand the role of the flexplate in the drivetrain.

Material Considerations

I found that flexplates come in various materials, mainly steel and aluminum. Steel flexplates are often more durable and can handle higher torque loads, while aluminum options are lightweight, which may contribute to better performance. I had to weigh the pros and cons of each material based on my specific needs.

Flexplate Size and Compatibility

One of the first things I checked was the size and compatibility of the flexplate. I had to ensure that the flexplate would fit my LS engine and TH400 transmission perfectly. I measured the bolt pattern and the diameter to avoid any mismatches during installation.

Torque Converter Compatibility

In my experience, I learned that the flexplate must be compatible with my torque converter. I made sure to check the specifications of both components to ensure they would work seamlessly together. This compatibility is crucial for smooth power transfer.

Weight Considerations

Weight can be a significant factor in performance. I found that lightweight flexplates can improve throttle response and acceleration. However, I also considered whether the weight savings were worth the potential trade-offs in durability. It became a balancing act based on my performance goals.

Installation Process

Before purchasing, I researched the installation process. I wanted to ensure I had the necessary tools and understood the steps involved. Some flexplates can be more challenging to install than others, so I paid close attention to user reviews and guides.

Price Range and Budget

I set a budget for my flexplate purchase. Prices can vary widely based on brand, material, and features. I compared different options to find something that fit my budget while still offering the quality I needed.

Warranty and Customer Support

I always check for warranty options and customer support before making a purchase. A good warranty can provide peace of mind, especially if I run into any issues down the line. I looked for manufacturers that offered solid support and reliable service.

Final Thoughts

Ultimately, finding the right LS to TH400 flexplate took some time and research. I made sure to consider all the factors, from material and compatibility to weight and price. By doing my homework, I felt confident in my choice and ready to complete my project successfully.

Author Profile

Candace Eaves

Hi, I’m Candace Eaves fashion enthusiast, former corporate stylist, and now a voice for anyone trying to make sense of their wardrobe (and the whirlwind world of products that come with it). Born and raised in sunny Los Angeles, my early days were spent split between soccer cleats and carefully chosen off-field outfits. Even while growing up as an athlete, I knew fashion had a pull on me that couldn’t be ignored.

But in 2025, something shifted for me. I noticed that my clients weren’t just asking about outfits anymore. They were confused by product claims, unsure about quality, and overwhelmed by choices. Whether it was skincare, accessories, body care, or even home products, people wanted clarity. So I expanded.

Latest entries

• June 2, 2025Personal RecommendationsWhy I Switched to an 8 Quart Air Fryer: My Expert Experience and Top Cooking Tips
• June 2, 2025Personal RecommendationsUnlocking Creativity: My Journey with the One Inch Circle Punch – Tips and Tricks for Perfect Cuts
• June 2, 2025Personal RecommendationsTransforming My Space: How Displaying Albums on My Wall Revitalized My Home Décor
• June 2, 2025Personal RecommendationsWhy I Switched to a Male to Male Cord for My Generator: A Game-Changer in Power Supply