Transforming My Ride: How the LS to TH350 Adapter Revolutionized My Engine Swap Experience

When I first dove into the world of automotive modifications, I quickly discovered the exhilarating yet complex realm of engine swaps and transmission upgrades. One topic that consistently piqued my interest was the Ls to Th350 adapter—a crucial component for those looking to combine the modern power of an LS engine with the classic reliability of a TH350 transmission. This adapter not only bridges the gap between two distinct eras of automotive engineering but also opens up a world of possibilities for performance enthusiasts and classic car restorers alike. As I explored this fascinating intersection of technology and tradition, I realized just how much this seemingly simple piece of hardware could transform a vehicle’s performance and character. In this article, I’ll share insights into the significance of the LS to TH350 adapter, its benefits, and why it has become a popular choice among gearheads seeking to elevate their rides.

I Personally Reviewed The LS To TH350 Adapter And Here Are My Honest Recommendations

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

As someone who is deeply invested in automotive performance and engine conversions, I find the DICMIC LS V8 Flexplate Adapter Kit for GM Gen III TH350 TH400 700R4 Transmission to be an outstanding product for anyone looking to enhance their vehicle’s capabilities. This kit is engineered specifically for adapting LS engines to various transmission types, making it an invaluable addition to any performance-minded enthusiast’s toolkit.

One of the most appealing aspects of the DICMIC Flexplate Adapter Kit is its comprehensive package. It includes a Trans Adapter Flexplate, six Gen III LS Flexplate bolts, an LS Crank Sleeve Adapter, and a Torque Converter Bolt Kit. This all-in-one solution ensures that I have everything I need for a successful installation right out of the box. It saves me the hassle of sourcing individual components, which can often lead to compatibility issues. Instead, I can focus on the installation process and look forward to the performance enhancements that come with it.

The compatibility of this product is another major selling point. It works seamlessly with 1997-2007 GM LS1/LS6 engines and 4.8/5.3/6.0 truck engines, including popular variants like the L33, L59, LM4, LM7, LQ4, LQ9, and LR4. This versatility allows me to adapt these powerful LS engines to a range of transmissions, including the TH350, 700R-4, 200-4R, 4L60, and even the Powerglide, which originally came behind older non-LS engines. This broad compatibility means that no matter what project I am working on, I have a solution that is likely to fit my needs.

What’s more, the DICMIC Flexplate is designed with performance in mind. It is .035″ thicker than stock, which not only enhances durability but also meets the SFI 29.1 certification. This certification is crucial for those of us who participate in motorsport events, as it ensures that the product can withstand the rigors of high-performance applications. Knowing that I am using a product that adheres to such standards gives me peace of mind and confidence in my vehicle’s performance.

Another thoughtful feature of this kit is its compatibility with the factory LS starter. This detail significantly reduces conversion costs, making it an economically wise choice for those of us who want to upgrade without breaking the bank. Instead of having to invest in additional starters or modifications, I can utilize my existing starter setup, which streamlines the conversion process and keeps expenses manageable.

To summarize, the DICMIC LS V8 Flexplate Adapter Kit is an exceptional product that combines quality, versatility, and performance. It addresses the needs of automotive enthusiasts who want to upgrade their LS engines with minimal hassle and maximum effectiveness. With its comprehensive package, robust construction, and compatibility with a variety of engine and transmission combinations, this kit is a must-have for anyone serious about automotive performance.

So, if you are contemplating an LS engine swap or looking to enhance your current setup, I highly recommend considering the DICMIC LS V8 Flexplate Adapter Kit. It is a reliable product that not only meets but exceeds expectations, and investing in this kit will undoubtedly pay off in terms of performance and peace of mind. Don’t miss out on the opportunity to elevate your vehicle 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
Flexplate Thickness	.035″ thicker than stock, meets SFI 29.1 certification
Engine Compatibility	1997-2007 GM LS1/LS6, 4.8/5.3/6.0 truck engines
Transmission Compatibility	TH350, 700R-4, 200-4R, 4L60, Powerglide

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

2. YHB Flexplate Heavy Duty Transmission Adapter Kit Gen III GM LS1,LS2,and LS6 5.3/6.0 to TH350/700R4/4L60 1997-Present – Adapter Flexplate With Bolts Kit

When it comes to upgrading or swapping engines in classic cars, I always want products that not only meet my performance needs but also simplify the installation process. The ‘YHB Flexplate Heavy Duty Transmission Adapter Kit’ stands out as an exceptional choice for anyone looking to integrate Gen III GM LS1, LS2, and LS6 engines into their vehicles. This product is designed specifically for those who want to adapt these powerful engines to early GM automatic transmissions, such as TH350, 700R4, and 4L60, and it does so with remarkable ease and reliability.

One of the first features that caught my attention is the versatility of this adapter flexplate. It accommodates both 10.75″ and 11.066″ (11.1″) bolt-pattern torque converters, which is a significant advantage for me as it allows for compatibility with various transmission options. This means I don’t have to worry about whether my existing torque converter will fit; I can confidently move forward with my project, knowing that this adapter kit has me covered.

Installation is often the most daunting part of an engine swap, but the YHB Flexplate makes it a breeze. I appreciate how this transmission adapter kit is specifically tailored for the Gen III LS engines, making it an ideal solution for anyone like me who wants to preserve the performance of these modern engines while using classic transmission systems. Whether I’m working with LS1, LS2, or LS6 engines from 1997 to present, this kit ensures a seamless fit and function.

The fitment details are particularly impressive. The kit is compatible with a wide array of GM LS engines, including the 4.8, 5.3, and 6.0 truck engines, which adds to its appeal. For car enthusiasts who might be working on projects involving the L33, L59, LM4, LM7, LQ4, LQ9, and LR4 engines, this product is a game-changer. The ability to adapt these engines to transmissions that originally came with non-LS engines, such as SBC or BBC V8s, significantly broadens my options for customization and upgrades.

Moreover, the inclusion of essential components in the package is another noteworthy aspect. With the purchase, I receive not just the adapter flexplate, but also six Gen III LS flexplate bolts, an LS crank sleeve adapter, and a torque converter bolt kit. This comprehensive package ensures that I have everything I need for installation, minimizing the chances of needing to source additional parts, which can often lead to delays and increased project costs.

In terms of durability, the YHB Flexplate is constructed from cold-rolled premium steel, which is a reassurance for someone like me who values quality and longevity in automotive parts. The gold iridited finish that prevents rust adds an extra layer of protection, ensuring that the product not only performs well but also looks great under the hood.

if you’re considering an engine swap or upgrade involving Gen III GM LS engines, I wholeheartedly recommend the YHB Flexplate Heavy Duty Transmission Adapter Kit. It combines functionality, compatibility, and durability in one impressive package. Investing in this kit will undoubtedly simplify your installation process and enhance your vehicle’s performance. Don’t miss out on the opportunity to elevate your project—this product is a worthy addition to any car enthusiast’s toolkit!

Feature	Description
Compatibility	Works with 10.75″ & 11.066″ bolt-pattern torque converters
Function	Designed for Gen III LS engine swaps to early GM automatic transmissions
Fitment	Compatible with LS1, LS2, LS6, and various truck engines
Included Components	Adapter flexplate, LS flexplate bolts, crank sleeve adapter, torque converter bolt kit
Material	Cold-rolled premium steel with a rust-preventing finish

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

3. Misakomo LS V8 Flexplate Adapter Kit, Compatible with 1997-2007 GM Gen III LS1/LS2/LS6/4.8/5.3/6.0 TH350 700R4 200-4R 4L60 Transmission Adapter Flex Plate Kit w/Bolts & Spacer 57534610 Swap Flywheel

As an automotive enthusiast, I know how crucial it is to find reliable components when undertaking an engine swap or upgrading a vehicle’s drivetrain. The Misakomo LS V8 Flexplate Adapter Kit stands out to me as an exceptional product designed to cater to a wide array of GM LS engine applications. This kit is compatible with various models, including the 1997-2007 GM Gen III LS1, LS2, LS6, and popular truck engines like the 4.8, 5.3, and 6.0. This flexibility allows individuals like me, who are looking to enhance their vehicle’s performance, to integrate this adapter with several transmission options seamlessly.

One of the standout features of this adapter kit is its wide compatibility. The flexplate can accommodate both the 10.75″ and 11.066″ (11.1″) torque converter bolt patterns, which means I can choose from a range of torque converters without worrying about mismatches. This adaptability ensures a smooth installation process and minimizes the chances of encountering issues down the line. For anyone looking to perform an LS swap, this feature is invaluable, as it not only saves time but also enhances the overall experience.

Another aspect that I appreciate is the cost-saving design of this flexplate adapter. By allowing the use of the factory LS starter, this kit helps reduce conversion costs significantly. It’s always a bonus when I can use existing components instead of shelling out extra cash for new parts. This feature makes the Misakomo LS V8 Flexplate Adapter Kit an economically sound choice for DIY mechanics and professionals alike, who may be working within a budget while still aiming for quality performance.

Fitment is also a primary consideration for anyone undertaking an LS swap. The adapter kit is designed to fit various GM LS engines, including the LS1, LS6, and even the LS2 (up to ’09). It also works with a variety of transmissions, such as the TH350, 700R-4, 200-4R, 4L60, and Powerglide, which were originally paired with non-LS engines like SBC or BBC V8s. This extensive compatibility means that I can confidently use this kit on my project without worrying about fitment issues.

However, it’s essential to note that while the kit is versatile, it may not work with specific 1999-2000 LQ4 6.0 LS engines equipped with a 4L80E automatic transmission. These engines require a flat flexplate due to the “tall” crank flange. For someone like me who is meticulous about the details, this is a reminder to double-check the compatibility of my engine setup before purchasing. It’s always better to be informed than to face unexpected challenges during installation.

In addition to the flexplate itself, the Misakomo kit includes everything I need for a hassle-free swap. It comes with six Gen III LS flex plate bolts, an LS torque converter adapter sleeve, and a torque converter bolt kit. This all-in-one package eliminates the need for additional trips to the auto parts store, making the installation process more straightforward and efficient.

Ultimately, I believe that the Misakomo LS V8 Flexplate Adapter Kit is a smart investment for anyone looking to upgrade their vehicle with a Gen III LS engine. Its compatibility, cost-saving features, and comprehensive package make it a compelling choice. If you’re in the market for a reliable flexplate adapter that will make your engine swap easier and more efficient, I highly recommend giving this kit a closer look. It could be the perfect solution to elevate your vehicle’s performance while saving you both time and money.

Feature	Details
Compatibility	Works with 10.75″ and 11.066″ torque converter bolt patterns
Cost Savings	Utilizes factory LS starter to reduce conversion costs
Fitment	Fits 1997-07 GM LS1/LS6 engines and 4.8/5.3/6.0 truck engines
Package Includes	Flexplate, bolts, adapter sleeve, torque converter bolt kit
Note	May not work with certain 1999-2000 LQ4 6.0 LS engines

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

4. TEMSONE Flexplate Torque Stall Converter Spacer Flywheel Swap Crankshaft Hub Adapter Compatible with TH350 TH400 Transmission for LS and LT Series Engine

When it comes to enhancing the performance of your vehicle, especially if you’re working with a GM LS or LT engine, the TEMSONE Flexplate Torque Stall Converter Spacer Flywheel Swap Crankshaft Hub Adapter is a game-changer. I recently explored this product, and I must say, it stands out for its compatibility and functionality. If you’re considering an upgrade or a swap, this adapter is designed specifically for the TH350 and TH400 automatic transmissions, making it a seamless fit for those who are serious about their engine modifications.

One of the most significant advantages of this adapter is its precise fitment. Compatible with GM LS and LT engines manufactured between 1998 and 2004, it ensures that you won’t face any alignment issues when connecting your flexplate and torque converter. This aspect alone is crucial for anyone looking to maximize their engine’s efficiency, as misalignment can lead to performance losses and even potential damage over time. The fact that it acts as a metal connector between the flexplate and the torque converter means that it plays a vital role in the overall performance of your drivetrain.

Installation is often a major concern when upgrading components, but TEMSONE has made this process straightforward. The adapter is designed to be easily placed in the center hole of the flexplate, and all it takes is a gentle tap until it sits flush with the crankshaft. This simplicity is a breath of fresh air for both seasoned mechanics and DIY enthusiasts alike. I appreciate that the manufacturer has prioritized user-friendliness, as this allows me to focus on other aspects of my project without worrying about complex installations.

Quality is another area where TEMSONE truly shines. Constructed from high-quality hard iron, this adapter is built to withstand the rigors of high-performance applications. I’ve often seen products that compromise on material quality, but with this adapter, I can rest assured that it will maintain its integrity even under stress. This durability not only enhances the overall lifespan of the product but also ensures that I’m getting the best value for my investment.

Moreover, TEMSONE backs their product with a one-year quality support guarantee. This commitment to customer service is something I genuinely value. Knowing that I can reach out with any questions or concerns and receive a prompt response within 24 hours gives me peace of mind. It’s not just about selling a product; it’s about building a relationship with customers, and TEMSONE seems to prioritize that aspect highly.

if you’re in the market for a reliable and efficient torque converter spacer that works flawlessly with GM LS and LT engines, I would strongly recommend considering the TEMSONE Flexplate Torque Stall Converter Spacer Flywheel Swap Crankshaft Hub Adapter. Its compatibility, ease of installation, high-quality materials, and excellent customer service make it a smart choice for anyone serious about enhancing their vehicle’s performance. So why wait? Make your engine upgrades smoother and more efficient with this essential component.

Product Feature	Description
Fitment	Compatible with 1998-2004 GM LS and LT engines using TH350/TH400 transmissions
Function	Metal connector between flexplate and torque converter
Easy to Install	Simple installation process; just tap into place
High Quality	Made from high-quality hard iron for durability
Service	1-year product quality support with prompt customer service

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

Why the LS to TH350 Adapter is Essential for My Build

When I decided to swap my old engine for an LS engine, I knew I wanted to keep my trusty TH350 transmission. However, I quickly realized that I needed an LS to TH350 adapter to make this combination work seamlessly. This adapter became a crucial component in my build, allowing me to marry the modern technology of the LS engine with the reliable performance of the TH350 transmission.

One of the primary reasons I found this adapter invaluable was the ease of installation. Instead of having to buy a completely new transmission or modify my existing setup extensively, the adapter provided a straightforward solution. It allowed me to connect the LS engine to my TH350 without the need for extensive custom work, saving me both time and money. I appreciated how it simplified the process, letting me focus on other aspects of my build.

Additionally, using the LS to TH350 adapter has enabled me to take advantage of the LS engine’s performance and efficiency. With the combination of these two components, I’ve experienced improved power delivery and better fuel economy compared to my previous setup. The adapter has allowed me to enjoy the best of both worlds—modern engine technology with a classic transmission. Overall, it has been a game-ch

Buying Guide for LS to TH350 Adapter

Understanding the Purpose of an LS to TH350 Adapter

When I decided to swap my LS engine with a TH350 transmission, I quickly realized that an adapter was essential. This component allows the modern LS engine to connect seamlessly with the classic TH350 transmission. It’s crucial for achieving compatibility and ensuring smooth operation.

Compatibility Considerations

Before making a purchase, I focused on compatibility. I needed to ensure that the adapter would fit my specific LS engine and TH350 transmission model. I found it helpful to check the specifications of both components, as some adapters are designed for particular setups. Knowing the year and model of my engine and transmission helped me narrow down my options.

Material and Build Quality

I learned that the material of the adapter plays a significant role in its durability. Many adapters are made from aluminum or steel. I considered how much weight I wanted to add to my vehicle and the conditions under which I would be driving. A well-built adapter can withstand the rigors of daily driving or racing without issues.

Installation Process

I took into account the installation process while shopping for my adapter. Some adapters require more modifications than others. I wanted something that would allow for a straightforward installation, minimizing the need for additional tools or parts. I found it beneficial to read reviews or guides from others who had completed similar installations.

Price Range

Setting a budget was an important step for me. The price of LS to TH350 adapters can vary significantly based on the brand and features. I aimed to find a balance between quality and cost. While I didn’t want to overspend, I also recognized that cheaper options might compromise quality and reliability.

Customer Reviews and Feedback

Before finalizing my choice, I spent time reading customer reviews. Hearing about others’ experiences gave me insight into the performance and reliability of different adapters. I paid attention to any common issues mentioned and considered how these might affect my own project.

After-Sales Support and Warranty

I also looked into the after-sales support offered by manufacturers. Having access to customer service can be invaluable if I encounter any issues during installation or use. A warranty can provide additional peace of mind, ensuring that I am covered in case of defects or problems.

Ultimately, selecting the right LS to TH350 adapter requires thorough research and consideration of various factors. I made sure to evaluate compatibility, material quality, installation ease, price, and customer feedback. With the right adapter, I could successfully complete my engine swap and enjoy the performance of my vehicle.

Author Profile

Joseph Roberts

Hi, I’m Joseph Roberts though you might know me better through my work at The NYDAG Group. For over twenty years, I’ve immersed myself in the insurance and financial services industry, helping individuals, families, and businesses navigate everything from tax planning to complex risk strategies. I founded The NYDAG Group in Vernon, New York, as a full-service accounting and insurance firm designed to make financial clarity and reliable coverage accessible to all.

That’s why, starting in 2025, I began writing a new kind of blog, one focused on personal product analysis and first-hand usage reviews. After spending years helping clients make informed financial decisions, I realized how much the same principles apply to everyday purchases. My blog now bridges those worlds: offering clear, experience-based insight into products that people use every day whether it's insurance tools, financial software, or lifestyle essentials.

Latest entries

• April 25, 2025Personal RecommendationsWhy I Swear by Long Sleeve Swimsuit Cover Ups: My Personal Journey to Style and Sun Protection
• April 25, 2025Personal RecommendationsDiscovering the Best Holsters for My Sig P238: A Personal Journey and Expert Recommendations
• April 25, 2025Personal RecommendationsWhy I Chose a Black Satin Bed Set: My Personal Journey to Luxurious Sleep and Elegance
• April 25, 2025Personal RecommendationsWhy I Chose a Tile Top Dining Room Table: My Expert Experience and Tips for Making the Best Choice