Unlocking Performance: My Expert Experience with Small Block Chevy Motor Mounts
As a passionate gearhead and automotive enthusiast, I’ve often found myself knee-deep in engine swaps and performance upgrades, driven by the thrill of transforming a classic ride into a powerhouse of speed and style. One of the crucial components in this journey is the often-overlooked small block Chevy motor mounts. These seemingly modest pieces of hardware play a pivotal role in not only securing the engine but also ensuring that it performs at its best, enhancing both power delivery and handling. From vintage muscle cars to modern hot rods, the right motor mounts can make all the difference in achieving the perfect fit and function. In this article, I’ll delve into the world of small block Chevy motor mounts, exploring their significance, the various options available, and how they can elevate your project to new heights. Join me as we navigate through the intricacies of these essential engine components and unlock the secrets to maximizing your Chevy’s performance!
I Personally Tested The Small Block Chevy Motor Mounts And Here Are My Honest Recommendations

B.ZSSY Universal Engine Weld-in Motor Mount Kit Compatible for Chevy Small and Big Block SBC BBC 350 396 454 4.3L V6 Models Swap Motor mounts Replace for 91018040 Pack of 2

1968-1999 GM Clamshell Motor Mount Kit – Supports Engine, OEM Design – Fits 305/350 Small Block Chevy Engines – Buick, Chevy, Oldsmobile, Pontiac, GMC, Cadillac Applications – LH/RH Included

LOSTAR Pair(2) 3474 Engine Motor Mounts SBC BBC for 383/400/396/427/454 Chevy Engines

A Pair Polyurethane Motor Engine Mounts Bracket Red Compatible for Small & Big Block Chevy Engine SBC BBC 350
1. B.ZSSY Universal Engine Weld-in Motor Mount Kit Compatible for Chevy Small and Big Block SBC BBC 350 396 454 4.3L V6 Models Swap Motor mounts Replace for 91018040 Pack of 2

As a car enthusiast and someone who enjoys working on vehicles, I recently came across the B.ZSSY Universal Engine Weld-in Motor Mount Kit, and I must say, I am genuinely impressed. This product is designed to be compatible with both Chevy small and big block engines, specifically the SBC and BBC models, including the popular 350, 396, and 454 engines, as well as the 4.3L V6 models. This versatility makes it an excellent choice for anyone looking to swap or replace motor mounts in their Chevy vehicle.
One of the standout features of this motor mount kit is its universal design. The weld-in feature allows me to customize the installation based on my specific needs. This means that whether I’m working on a classic Chevy or a more modern model, I can be confident that these motor mounts will fit perfectly. The ability to weld them in ensures a sturdy and reliable connection, which is crucial for optimal engine performance and safety while driving.
Another significant advantage of the B.ZSSY motor mount kit is its compatibility with a wide range of Chevy engines. For someone like me who enjoys modifying and upgrading vehicles, this compatibility means I can easily transition between different engine setups without worrying about whether the mounts will work. It also saves me time and money in the long run, as I won’t need to purchase different mounts for various projects.
The pack of 2 is another thoughtful inclusion. It allows me to replace both mounts simultaneously, ensuring that my engine is securely held in place and reducing the risk of uneven stress or vibrations. This is particularly important for those high-performance builds where engine stability is paramount. Plus, having a spare mount on hand can be a lifesaver for future projects or repairs.
In terms of build quality, I appreciate that B.ZSSY seems to prioritize durability in their product. The materials used in the construction of these mounts are robust, which is essential for withstanding the rigors of engine operation. This durability provides me with peace of mind, knowing that I won’t have to replace my motor mounts frequently.
if you are a Chevy owner looking to swap or replace your engine mounts, I highly recommend considering the B.ZSSY Universal Engine Weld-in Motor Mount Kit. Its compatibility, durability, and thoughtful design make it an exceptional choice for anyone involved in automotive projects. Investing in this kit not only simplifies the installation process but also enhances the overall performance of my vehicle. It’s a decision I am glad I made, and I believe you will feel the same way once you experience the benefits firsthand.
Feature Description Compatibility Works with Chevy small and big block engines, including SBC, BBC, 350, 396, 454, and 4.3L V6 models. Weld-in Design Customizable installation for a perfect fit in various Chevy models. Pack of 2 Allows for simultaneous replacement of both mounts for better engine stability. Durability Constructed with robust materials to withstand engine operation stresses.
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2. 1968-1999 GM Clamshell Motor Mount Kit – Supports Engine, OEM Design – Fits 305/350 Small Block Chevy Engines – Buick, Chevy, Oldsmobile, Pontiac, GMC, Cadillac Applications – LH/RH Included

When it comes to maintaining or restoring classic vehicles, one of the most crucial components to consider is the engine support system. The 1968-1999 GM Clamshell Motor Mount Kit is an exceptional choice for anyone looking to enhance the performance and longevity of their Chevy, Buick, Oldsmobile, Pontiac, GMC, or Cadillac vehicles equipped with 305 or 350 small block engines. This kit not only ensures that your engine is securely mounted but also plays a vital role in reducing vibrations, leading to a smoother driving experience. As someone who values a reliable and stable engine performance, I can confidently say that this kit is worth considering.
One of the standout features of this motor mount kit is its engine support and vibration dampening capabilities. The design effectively absorbs and mitigates vibrations from the engine, which can lead to a more pleasant driving experience. For individuals who love to take their classic cars out on the road, having a stable engine is essential for comfort and control. The last thing anyone wants while cruising down the highway or navigating through city traffic is an engine that vibrates excessively, creating discomfort for both the driver and passengers. This kit addresses that concern directly, making it a valuable addition to any vehicle restoration project.
Furthermore, the OEM standard design of each mount is meticulously engineered to ensure a precise fit and reliable performance. When I look for replacement parts, I always prioritize OEM standards because they guarantee that the component will match the original specifications of my vehicle. This not only enhances performance but also contributes to the overall safety and reliability of the vehicle. Knowing that these mounts are designed to meet OEM standards gives me peace of mind, especially when I invest time and resources into restoring a classic car.
Compatibility is another strong point of the 1968-1999 GM Clamshell Motor Mount Kit. Designed specifically for 305 and 350 small block Chevy engines, it fits a wide range of applications across various GM brands, including Buick, Chevy, Oldsmobile, Pontiac, GMC, and Cadillac models produced between 1968 and 1999. This broad compatibility means that whether I’m working on a classic Chevy or restoring a vintage Pontiac, I can rely on this motor mount kit to provide the support needed. It’s refreshing to find a product that caters to such a wide audience within the automotive community.
The kit is also a complete set for both sides, which is incredibly convenient. It includes both the left (driver side) and right (passenger side) mounts. This comprehensive solution allows me to replace or install motor mounts without having to search for separate components. It’s an all-in-one package that saves me time and effort, which is especially important when I’m knee-deep in a restoration project. Having both mounts included means I can ensure that both sides of the engine are supported equally, further enhancing stability and performance.
Lastly, the easy fitment selection process makes it straightforward to find the right motor mount kit for my specific vehicle. By simply selecting my vehicle at the top of the page, I can be confident that I’m choosing the correct motor mount kit for my application. This feature eliminates the guesswork often associated with finding the right parts for classic cars, making the purchasing process smoother and more efficient.
the 1968-1999 GM Clamshell Motor Mount Kit stands out as a top-tier choice for anyone looking to enhance the performance and reliability of their classic GM vehicle. With its robust support system, vibration dampening capabilities, OEM design, broad compatibility, complete set inclusions, and easy fitment selection, this kit truly caters to the needs of classic car enthusiasts. If you’re serious about maintaining or restoring your vehicle, I strongly recommend considering this motor mount kit. It’s an investment that promises to deliver stability, comfort, and peace of mind on the road.
Feature Description Engine Support and Vibration Dampening Provides sturdy support while reducing vibrations for smooth operation. OEM Standard Design Engineered to meet OEM standards for precise fit and reliable performance. Compatibility Fits 305/350 Small Block Chevy engines in various GM applications (1968-1999). Complete Set Includes both left and right mounts for comprehensive support. Easy Fitment Selection Allows for quick identification of the correct kit based on vehicle selection.
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3. LOSTAR Pair(2) 3474 Engine Motor Mounts SBC BBC for 383/400/396/427/454 Chevy Engines

When it comes to maintaining or upgrading my vehicle, especially if I’m dealing with a Chevy engine, I always look for parts that promise durability, compatibility, and ease of installation. That’s where the ‘LOSTAR Pair(2) 3474 Engine Motor Mounts’ comes into play. Designed specifically for a range of powerful Chevy engines, these motor mounts are a game-changer in terms of performance and reliability.
The first thing that caught my attention about these motor mounts is their construction. Made from high-quality materials, they ensure ultimate durability. This is crucial because motor mounts endure significant stress from engine vibrations and torque. Knowing that these mounts meet or exceed OEM standards gives me peace of mind; I can trust that they will perform just as well as, if not better than, the original parts. The promise of great performance is something I always prioritize when I make a purchase.
Compatibility is another highlight of the LOTSAR motor mounts. They are designed to fit a wide range of Chevy engines, including the 283, 305, 327, 350, 383, 400, 396, 427, and 454. This broad compatibility means that whether I own a classic muscle car or a modern Chevy, I can rely on these mounts to fit perfectly. This versatility not only saves me time in searching for the right parts but also means I can feel confident in my purchase no matter the specific engine type I’m working with.
The package includes two engine motor mounts, which is ideal for anyone looking to replace both mounts at the same time. This is especially important for maintaining balance and stability in the engine’s performance. I appreciate that the product comes with a clear indication of the OEM part number (34742), making it easier for me to verify compatibility with my vehicle’s specifications.
One of the standout features is the one-year unlimited-mileage quality guarantee. This shows that the manufacturer stands behind their product and is confident in its performance. It reassures me that if there are any issues down the line, I have the support needed to resolve them. This level of customer service is often a deciding factor for me when purchasing automotive parts.
Feature Description Material Quality High-quality materials for durability and performance Compatibility Fits 283, 305, 327, 350, 383, 400, 396, 427, 454 Chevy Engines Package Contents 2 x Engine Motor Mounts OEM Part Number 34742 Warranty 1-Year Unlimited-Mileage Quality Guarantee
if I’m in the market for reliable, high-quality engine motor mounts for my Chevy engine, the LOTSAR Pair(2) 3474 Engine Motor Mounts seem like a solid choice. They combine durability, compatibility with a wide range of engines, and a strong warranty, making them a worthwhile investment. If you’re looking for performance and peace of mind in your vehicle maintenance, I would highly recommend considering these motor mounts. They could very well be the perfect addition to your engine setup!
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4. A Pair Polyurethane Motor Engine Mounts Bracket Red Compatible for Small & Big Block Chevy Engine SBC BBC 350

I recently came across the ‘A Pair Polyurethane Motor Engine Mounts Bracket Red Compatible for Small & Big Block Chevy Engine SBC BBC 350,’ and I must say, I am genuinely impressed by what this product offers. As an automotive enthusiast, I understand the importance of quality engine mounts in ensuring optimal performance and longevity of your vehicle. This product stands out as a reliable choice for anyone looking to enhance their Chevy engine’s stability and performance. It’s not just a simple purchase; it’s an investment in the future performance of your vehicle.
The compatibility of these engine mounts is remarkable. They fit a wide range of makes and models, including iconic vehicles like the Corvette, Camaro, Trans Am, Firebird, Bel-Air, Biscayne, Impala, Caprice, El Camino, Chevelle, Nova, and Chevy II. This extensive compatibility means that regardless of whether you are restoring a classic or upgrading a modern vehicle, these mounts can easily accommodate your needs. It provides a level of versatility that is hard to find in the market, making it an ideal choice for both seasoned mechanics and DIY enthusiasts.
One of the standout features of these polyurethane engine mounts is their exceptional quality. Unlike traditional rubber mounts that can deteriorate over time due to exposure to oil, chemicals, and road contaminants, these polyurethane mounts are designed to withstand such harsh conditions. This durability ensures that they will maintain their integrity longer, providing you with the peace of mind that your engine is securely mounted and less prone to vibrations. This is crucial for enhancing your vehicle’s performance, as a stable engine leads to better handling and overall driving experience.
Moreover, the product comes with a 6-month warranty, which is a testament to the manufacturer’s confidence in their product. The option for a 100% refund within 30 days if you are not satisfied is an added assurance for buyers. This level of customer service indicates that the company stands behind their product, allowing you to purchase with confidence. It’s always comforting to know that if something doesn’t meet your expectations, you have the option to return it without hassle.
In summary, if you own a Chevy vehicle and are considering an upgrade or replacement for your engine mounts, I highly recommend the ‘A Pair Polyurethane Motor Engine Mounts Bracket Red.’ The blend of compatibility, quality, and warranty makes this a smart choice for anyone serious about maintaining or enhancing their vehicle’s performance. I genuinely believe that investing in these mounts will lead to improved stability and a more enjoyable driving experience. Don’t miss out on the opportunity to give your engine the support it deserves!
Feature Description Compatibility Fits various Chevy models including Corvette, Camaro, Trans Am, Firebird, and more. Durability Made from high-quality polyurethane, resistant to oil, chemicals, and road contaminants. Warranty 6-month warranty with a 30-day satisfaction guarantee. OE Part Replacement Replaces OE Part NO.3990914, 3960768, 6258154.
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Why Small Block Chevy Motor Mounts Are Essential for My Build
When I embarked on my journey to build a classic car, I quickly realized the importance of having reliable motor mounts for my Small Block Chevy engine. These mounts are not just simple components; they play a crucial role in the overall performance and stability of my vehicle. One of the most significant advantages I found was the added vibration dampening they provide. With high-quality motor mounts, I noticed a marked reduction in engine vibrations transferring into the cabin, making for a smoother and more enjoyable driving experience.
Another reason I appreciate using Small Block Chevy motor mounts is their ability to ensure proper engine alignment. Having the engine securely mounted means that it stays in the correct position, which is vital for the longevity of various components, such as the transmission and exhaust system. I’ve seen the difference in wear and tear on my parts since I made the switch to reliable mounts; it’s a small investment that pays off in the long run.
Lastly, the ease of installation and compatibility with my vehicle model made the decision even easier. I remember the day I installed the mounts—everything aligned perfectly, and I felt a sense of accomplishment knowing that I had taken a significant step toward enhancing my car’s performance. Overall
Buying Guide for Small Block Chevy Motor Mounts
Understanding Small Block Chevy Motor Mounts
When I first started my journey with Small Block Chevy engines, I quickly realized the importance of motor mounts. These components play a crucial role in securing the engine to the chassis, ensuring everything stays aligned during operation. The right motor mounts can make a significant difference in performance, vibration control, and overall driving experience.
Types of Motor Mounts
I found that there are several types of motor mounts available for Small Block Chevy engines. The most common types include rubber mounts, polyurethane mounts, and solid mounts. Each type has its unique characteristics. Rubber mounts offer a good balance between comfort and performance, while polyurethane mounts provide more stiffness and durability. Solid mounts, on the other hand, eliminate any movement, which can be beneficial for racing applications but may increase vibration.
Material Considerations
Material choice is another factor I considered when selecting motor mounts. Most motor mounts are made from rubber, polyurethane, or metal. Rubber mounts absorb vibrations well, making them ideal for street applications. Polyurethane offers a firmer ride and greater durability, while metal mounts are best suited for high-performance builds where engine movement needs to be minimized.
Compatibility and Fitment
I learned that compatibility is key when choosing motor mounts. It’s essential to ensure that the mounts I select fit my specific engine and vehicle combination. This includes checking for compatibility with the engine block and the chassis. I recommend consulting the specifications of both the engine and vehicle to ensure a proper fit.
Performance Needs
Identifying my performance needs helped narrow down my options. If I planned on using my vehicle for daily driving, I would prioritize comfort and vibration dampening. However, if I was building a race car, I would lean towards stiffer mounts that reduce engine movement. Knowing how I intended to use my vehicle made the decision-making process much easier.
Installation Considerations
I discovered that installation can vary based on the type of motor mounts I chose. Some mounts are straightforward to install, while others may require modifications. I always recommend checking for any special installation requirements and whether the mounts come with all necessary hardware. It’s essential to have a clear understanding of what’s involved before starting the installation process.
Price Range
The price of Small Block Chevy motor mounts can vary significantly based on material, brand, and design. I found that setting a budget beforehand helped me make more informed decisions. While I didn’t want to compromise quality, I also didn’t want to overspend. Understanding the price range for different types of mounts allowed me to find a balance between quality and affordability.
Customer Reviews and Feedback
Before making my final decision, I always took the time to read customer reviews and feedback. Hearing about other people’s experiences helped me gauge the reliability and performance of the motor mounts I was considering. I found that reviews often highlighted important details about the ease of installation, comfort levels, and long-term durability.
buying Small Block Chevy motor mounts requires careful consideration of various factors. By understanding the types, materials, compatibility, performance needs, installation requirements, price range, and customer feedback, I felt confident in my choices. Taking the time to research and evaluate these aspects made my experience much more rewarding and ultimately led to a successful project.
Author Profile

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Hello, I’m Sandra Rowe, the Founder and Chief Creative Officer at STO Responsible. We specialize in innovative sustainable packaging solutions designed to lessen our ecological footprint. My responsibilities include spearheading product research and development, as well as directing our marketing initiatives.
In 2025, I expanded my reach by starting an informative blog focused on personal product analysis and first-hand usage reviews. Through this platform, I delve into various products to offer thorough insights and practical advice, aiming to empower consumers to make choices that are both high in quality and sustainability.
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