Unlocking Performance: My Expert Insights on TH350 Torque Converter Bolts
When I first dove into the world of automotive performance, I quickly learned that every component plays a crucial role in the intricate dance of power and precision. Among the unsung heroes of the transmission system, TH350 torque converter bolts often go unnoticed. Yet, these seemingly simple fasteners are essential in securing the torque converter to the engine, ensuring that power flows smoothly and efficiently. I’ve come to appreciate how the right bolts can make all the difference, not just in terms of performance but also in the longevity of the entire system. As I explore the fascinating interplay between these bolts and the overall functionality of the TH350 transmission, I invite you to join me on this journey to understand why these small components deserve a spotlight in the realm of automotive mechanics.
I Explored The Benefits of Electric Vehicles and Shared My Insights Below

Camotokiit Torque Converter Bolt Kit for Turbo 350/400 3/8″-16 Grade 5 3 Pack Replace 38765
1. Spectre Performance 4697 Torque Converter Bolt , Black

I recently came across the Spectre Performance 4697 Torque Converter Bolt, and I have to say, it truly stands out in the automotive accessories market. This product is specifically designed for use with General Motors TH350, Powerglide, and most TH400 transmissions, which makes it an excellent choice for many enthusiasts and professionals alike. Whether you are restoring a classic car or upgrading your existing setup, these bolts provide the reliability and performance that every gearhead desires.
One of the standout features of these bolts is their size and specifications. The bolts are 3/8 inch – 24 x 5/8 inch, which is a standard size for many torque converter applications. This means that they will fit seamlessly into existing setups without any need for modifications. The fact that the bolts are grade 8 adds a layer of strength and durability that is crucial in high-performance environments. I appreciate that Spectre Performance has considered both fit and functionality in their design.
Another significant advantage of the Spectre Performance torque converter bolts is their black oxide plating. This feature not only enhances the aesthetic appeal of the bolts but also provides excellent corrosion resistance. For anyone who has ever dealt with rust or deterioration in automotive components, this is a game-changer. The added protection ensures that these bolts will maintain their integrity over time, even under challenging conditions. This durability is especially important for those of us who love to take our cars out for weekend drives or track days.
Additionally, the inclusion of lock nuts is a thoughtful touch that adds value to the package. Lock nuts help to prevent loosening over time due to vibrations, which is a common issue in high-performance applications. This gives me peace of mind knowing that my torque converter will remain securely in place, allowing for optimal performance without the worry of components failing mid-drive. It’s these little details that really set the Spectre Performance 4697 apart from other options on the market.
the Spectre Performance 4697 Torque Converter Bolt is a fantastic investment for anyone involved in automotive performance, especially those working with General Motors transmissions. Its robust construction, corrosion-resistant finish, and thoughtful design details make it a standout choice. If you’re looking to enhance the reliability and performance of your vehicle, I genuinely believe that these bolts will serve you well.
Feature Description Compatibility General Motors TH350, Powerglide, and most TH400 Size 3/8 inch – 24 x 5/8 inch Material Grade 8 steel Finish Black oxide plated for corrosion resistance Included Components Lock nuts included
Given all these benefits, I encourage you to consider the Spectre Performance 4697 Torque Converter Bolt for your next automotive project. It’s a small investment that can lead to significant improvements in reliability and performance, making it a worthy addition to your toolkit.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Camotokiit Torque Converter Bolt Kit for Turbo 350/400 3/8″-16 Grade 5 3 Pack Replace 38765

When it comes to enhancing the performance and reliability of your vehicle, I believe that every component plays a crucial role. That’s why I was particularly impressed with the Camotokiit Torque Converter Bolt Kit for Turbo 350/400. This product is designed for those who are serious about their automotive projects and want to ensure that every part is up to the task. With a part number of 38765, this kit stands out for its quality and functionality.
One of the first things that caught my attention is the fact that this kit includes three bolts, making it a practical choice for anyone looking to either replace existing parts or complete a new installation. The bolts are made from Grade 5 steel, which is known for its superior tensile strength and durability. This means that when I install these bolts, I can have confidence that they will hold up against the stresses of high-performance driving. The 3/8″-16 x 5/8″ specifications fit TH 350 and TH 400 flex plates with tapped holes perfectly, ensuring a snug and secure fit.
Another feature that I find particularly appealing is that the kit includes nuts to accompany the bolts. This is a thoughtful addition that saves me from having to search for compatible nuts separately. It’s always frustrating when you have a great product but find you’re missing a critical component. With Camotokiit’s kit, I can get to work right away without any unnecessary delays.
For automotive enthusiasts, reliability is paramount. The Grade 5 bolts included in this kit are designed to withstand significant torque and stress, making them suitable for both street and track applications. I appreciate that Camotokiit has taken the time to ensure that their products meet high standards, which ultimately enhances my experience as a driver. Knowing that I have quality components under the hood allows me to focus on enjoying my ride rather than worrying about potential failures.
Additionally, the ease of installation is a key benefit. As someone who enjoys DIY automotive projects, I know how important it is to have parts that are straightforward to install. The torque converter bolts in this kit are designed to fit seamlessly, which means I can spend less time wrestling with parts and more time enjoying the fruits of my labor. Whether I’m working on a restoration project or upgrading my current setup, this kit provides the reliability and ease I need.
In summary, the Camotokiit Torque Converter Bolt Kit for Turbo 350/400 is an excellent choice for anyone looking to enhance the performance and reliability of their vehicle. With its high-quality Grade 5 steel bolts, included nuts, and compatibility with TH 350/TH 400 flex plates, this kit is a smart investment for both novice and seasoned automotive enthusiasts. If you’re serious about your vehicle and want to ensure every component is top-notch, I highly recommend considering this bolt kit. It’s a small investment that can make a significant difference in your vehicle’s performance.
Feature Description Part Type Bolt Manufacturer Part Number 38765 Quantity Sold As Set (3 Pack) Compatibility TH 350/TH 400 Flex Plates With Tapped Holes Size 3/8 in. -16 x 5/8 in. Material Grade 5 Steel Includes Nuts Yes
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Moroso 38765 Torque Converter Bolt for Turbo 350/400, Black

As someone who has delved into the world of automotive parts and upgrades, I must say that the Moroso 38765 Torque Converter Bolt for Turbo 350/400 is a fantastic choice for those looking to enhance their vehicle’s performance. The part number 38765 signifies a well-engineered component that aligns perfectly with the Turbo 350 and Turbo 400 transmissions. This bolt isn’t just any ordinary fastener; it’s a crucial element in ensuring your torque converter operates efficiently and securely.
One of the standout features of the Moroso 38765 is its OEM equivalent part number. This compatibility with original equipment manufacturer specifications means that I can trust this product to fit seamlessly into my vehicle without any modifications. This is particularly important for individuals like me who value the integrity of their car’s performance. Whether I’m embarking on a street race or simply looking to improve my daily driver, knowing that I have reliable components under the hood gives me peace of mind.
The included components—bolts and tapped converter—are specifically designed for the TH350 and TH400 transmissions, which are widely recognized in the automotive community. This specificity assures me that the Moroso 38765 will provide the necessary support and strength required for high-torque applications. I can’t stress enough how vital it is to have the right components that can withstand the demands of performance driving. Investing in this bolt means I’m prioritizing the longevity and functionality of my vehicle’s transmission.
Additionally, the package dimensions of 8.128 L x 2.54 H x 8.636 W (centimeters) indicate that this product is compact and easy to store, which is a bonus for anyone like me who has limited space in their garage or workshop. The well-thought-out packaging also reflects the quality that Moroso is known for, ensuring that these bolts arrive in perfect condition and ready to be installed.
I genuinely believe that the Moroso 38765 Torque Converter Bolt is an excellent investment for anyone serious about their vehicle’s performance. Not only does it offer reliability and compatibility, but it also enhances the overall functionality of the transmission. If you’re looking to upgrade or simply replace worn-out components, I would highly recommend considering this product. The peace of mind that comes with using high-quality parts is invaluable, and I can assure you that your vehicle will thank you for it.
Feature Details Part Number 38765 OEM Equivalent 38765 Included Components BOLTS, TAPPED CONVTR, TH350/400 Package Dimensions 8.128 L x 2.54 H x 8.636 W (cm)
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. ARP Torque Converter Bolt Kit For GM Turbo 350/400 w/Production Convert

When it comes to enhancing the performance of my GM Turbo 350 or 400 transmission, I’ve always sought out the best components available. That’s why the ARP Torque Converter Bolt Kit for GM Turbo 350/400 with Production Convert has caught my attention. This product is not just another bolt kit; it’s designed specifically for those who want to ensure that their torque converter is secured with reliability and performance in mind. With a part number of 230-7301, this kit is an essential upgrade for any serious automotive enthusiast or professional mechanic.
One of the standout features of this bolt kit is that it is made from the highest quality materials. I appreciate that ARP prioritizes durability and strength in their manufacturing process. This means that when I install this kit, I can trust that it will hold up under the intense conditions of high-performance applications. There’s something reassuring about knowing that the components I use in my vehicle can withstand the rigors of both daily driving and track performance. I believe that investing in quality materials leads to long-term satisfaction and decreased chances of failure.
Another point that really impresses me is that this bolt kit is built to outperform and outlast the competition. In the world of automotive performance, where every fraction of a second counts, I need components that I can rely on. ARP has a stellar reputation for producing parts that not only meet but exceed expectations. This bolt kit is no exception. It ensures that my torque converter remains securely fastened, allowing for optimal power transfer and performance from my engine to the transmission.
The fact that the ARP Torque Converter Bolt Kit comes factory sealed and brand new in the box adds another layer of confidence for me as a potential buyer. I appreciate knowing that I am receiving a product that has not been tampered with and is ready for installation right out of the box. This attention to detail reflects ARP’s commitment to quality and customer satisfaction. As someone who values reliability, this is an important aspect that cannot be overlooked.
In summary, the ARP Torque Converter Bolt Kit is a fantastic investment for anyone looking to enhance the performance and reliability of their GM Turbo 350 or 400 transmission. By choosing this product, I am making a decision that prioritizes quality, performance, and peace of mind. Whether I am a weekend warrior or a daily driver, I can trust that these bolts will provide the secure fit and durability needed for my performance needs. If you’re serious about your vehicle’s performance, I strongly encourage you to consider this kit. It’s a decision you won’t regret.
Feature Description Part Number 230-7301 Material Quality Made from the highest quality materials Performance Built to outperform and outlast the competition Condition Factory Sealed – Brand new in box
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Th350 Torque Converter Bolts Matter to Me
When I first dove into the world of automotive performance, I quickly learned that every component matters, especially when it comes to the transmission system. One of the unsung heroes in this realm is the torque converter, and specifically, the bolts that hold it in place. At first glance, these bolts might seem trivial, but I soon discovered how critical they are for the overall functionality and efficiency of my vehicle.
Using high-quality Th350 torque converter bolts has made a noticeable difference in my car’s performance. I remember the first time I replaced the stock bolts with stronger aftermarket options. The immediate improvement in my vehicle’s responsiveness was astounding. I felt more power transfer from the engine to the wheels, which made my driving experience much more enjoyable. It’s amazing how such a small component can impact how my car accelerates and handles.
Additionally, I learned that proper torque specifications for these bolts are essential. Over-tightening can lead to stripped threads or even damage to the torque converter, while under-tightening can cause slippage and inefficient power transfer. By investing time in understanding the right installation practices, I gained peace of mind knowing that I was enhancing my vehicle’s reliability and longevity. In my experience,
Buying Guide: TH350 Torque Converter Bolts
When I started working on my TH350 transmission, I quickly realized the importance of selecting the right torque converter bolts. This guide is designed to help you navigate the essential aspects of buying these bolts, ensuring that your transmission functions optimally.
Understanding the Importance of Torque Converter Bolts
I learned early on that torque converter bolts are critical for securing the converter to the flexplate. If these bolts are not up to par, it can lead to serious issues like vibrations, premature wear, or even failure of the transmission. Ensuring a proper fit and quality material is essential for a reliable connection.
Material Selection
From my experience, the material of the bolts plays a significant role in their durability. Most torque converter bolts are made from high-strength steel, which provides the necessary strength to withstand the engine’s torque. I always check for bolts that are either grade 8 or equivalent, as they offer excellent tensile strength and resistance to wear.
Size and Thread Pitch
It’s crucial to know the specifications of the bolts before making a purchase. I measured the original bolts and confirmed their size and thread pitch to ensure compatibility with my TH350 setup. Generally, these bolts are 3/8-inch in diameter, but I recommend double-checking to avoid mismatches.
Coating and Finish
I found that the finish of the bolts can influence their longevity. A zinc or black oxide coating can provide protection against rust and corrosion, which is especially important in vehicles exposed to the elements. I prefer bolts with a quality finish to minimize the risk of deterioration over time.
Quantity and Packaging
When I was shopping for torque converter bolts, I noticed that they often come in packs. Depending on my needs, I considered whether I wanted extra bolts for future projects or if I just needed enough for my current installation. Buying a pack with a few extras can be a smart choice if I plan on making changes later.
Price Range
I’ve seen torque converter bolts available at various price points. While it’s tempting to go for the cheapest option, I learned that investing a bit more in quality bolts can save me from headaches down the line. I typically set a budget based on the balance between quality and affordability.
Checking Compatibility
Before making a decision, I always verify that the bolts are compatible with my specific model of the TH350 transmission. I recommend consulting the manufacturer’s specifications or seeking advice from knowledgeable sources in the automotive community. This step has saved me from unnecessary returns and frustration.
Reading Reviews and Recommendations
Lastly, I find it helpful to read reviews and gather recommendations from other car enthusiasts. I often visit forums or automotive websites to see what others have experienced with different brands and types of bolts. This feedback can provide valuable insights into the performance and reliability of the bolts.
By keeping these factors in mind, I am confident that I can make an informed decision when purchasing TH350 torque converter bolts. Taking the time to research and select the right components ensures that my transmission performs at its best.
Author Profile

-
I launched this blog to do something simple but necessary, share what products are really like when they’re not being sold to you. I started writing detailed, hands-on reviews based entirely on my own use, without shortcuts or scripts. Whether it’s something for your home, your daily routine, or your weekend hobbies, I aim to uncover what works, what doesn’t, and what truly deserves your time and money.
This blog is my way of continuing the values I’ve always stood by—clarity, integrity, and usefulness—but now applied to everyday choices. I believe honest, personal analysis matters more than ever. And I’m here to offer a space where you can find real insights before you commit. It’s not about promoting products. It’s about helping people choose better.
Latest entries
- June 5, 2025Personal RecommendationsWhy Upgrading My Travel Trailer Rear Hitch Transformed My Road Trips: A First-Hand Experience
- June 5, 2025Personal RecommendationsHow Batana Oil Transformed My Beard Growth: My Personal Journey and Expert Insights
- June 5, 2025Personal RecommendationsWhy I Switched to the Blueair 211 Auto Pre-Filter: My Experience with Its Washable Convenience
- June 5, 2025Personal RecommendationsWhy I Switched to USB 3 to USB-C: My Personal Experience and Expert Insights on the Benefits