Looking for the best external balance flywheel to enhance your vehicle’s performance? We’ve curated a list of the top 10 picks that are durable, easy to install, and fit various models to elevate your driving experience.
Finding the perfect external balance flywheel can make a big difference in your vehicle’s performance. Whether you’re upgrading your engine or replacing a worn-out part, the right flywheel ensures smooth operation and reliable power.
We’ve tested and reviewed the best external balance flywheels on the market. They fit various models, from classic Chevys to modern Mazdas. Each one is built to last and easy to install.
Get ready to discover the top picks that will take your driving experience to the next level. Let’s find the perfect match for your engine!
List of Top 10 External Balance Flywheel
| Image | Title | Best For | Price |
|---|---|---|---|
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JEGS Flywheel | For 1971-1980 Small Block Chevy 400 | External Balance | 168 Tooth | Fits 2-Piece Rear Main Seal | Non-SFI | 14.125� Diameter |
This JEGS Flywheel is perfect for car enthusiasts and mechanics working on 1971-1980 Small Block Chevy 400 engines. It’s ideal for street applications and fits 2-piece rear main seals. |
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JEGS Flywheel | For 1986-1992 Small Block Chevy | External Balance | 168 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 14.125� Diameter |
This JEGS Flywheel is perfect for car enthusiasts who own a 1986-1992 Small Block Chevy and want a reliable, non-SFI approved replacement. It’s ideal for street applications, fitting 305, 350, and similar engines. |
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Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts) |
This Automatic Transmission Flexplate is perfect for Chevy owners with a 383 or 400 engine. It’s easy to install and replaces OEM Part 343738. |
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HQPASFY 1845400 Flexplate, External Balance 168 Teeth and Bolts Kit, Chromoly Steel, Compatible with 1970-1990 Big Block Chevy 454 Engine Corvette/Caprice/Suburban/Silverado &More |
This HQPASFY 1845400 Flexplate is perfect for car enthusiasts and mechanics who want a reliable and durable replacement for their 1970-1990 Big Block Chevy 454 Engine. It’s ideal for those seeking a smooth and stable ride. |
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JEGS Flywheel | For 1972-1991 AMC/Jeep 360 Engines | External Balance | 164 Tooth | 13.875� Ring Gear Diameter | 31 LBS | Uses 10.5� Or 11� Clutch | Fits 4.625 in. O.D. Crank Flange |
This JEGS Flywheel is perfect for Jeep and AMC owners with 1972-1991 360 engines. It’s ideal for those needing a reliable replacement that fits most applications and works with 10.5” or 11” clutches. |
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ClutchMaxPRO Flywheel External Counter Weight Balance Compatible with 2004-2011 Mazda RX-8 1.3L 13B-MSP 6-speed (CPCW-03) |
This ClutchMaxPRO Flywheel is perfect for Mazda RX-8 owners who want smooth, reliable performance. It’s ideal for those upgrading to an aftermarket flywheel and seeking affordable, high-quality parts. |
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EFT CLUTCH FLYWHEEL EXTERNAL COUNTER WEIGHT BALANCE FOR MAZDA RX-8 13BMSP 6 SPEED |
This EFT Clutch Flywheel is perfect for Mazda RX-8 owners who want reliable performance and peace of mind. It’s designed to fit your car perfectly and comes with strong support and a trusted warranty. |
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Flywheel New SBC External Balance |
The Flywheel New SBC External Balance is perfect for car enthusiasts and DIY mechanics who want to upgrade their vehicle’s performance. It’s easy to install and built to last, making it a great choice for anyone looking to improve their engine’s efficiency. |
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Fidanza 186511 164 Tooth Aluminum SFI Approved External Balance Flywheel |
The Fidanza 186511 Flywheel is perfect for car enthusiasts who want to upgrade their Small Block Ford. It’s lightweight, durable, and SFI approved, making it ideal for high-performance driving. |
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Allstar ALL26801 Flexplate 168T SFI External Balance 86-up |
This Allstar Flexplate is perfect for car enthusiasts who need a reliable auto part. It’s easy to handle and made in the United States. |
Detailed Reviews
Discover the top 10 External Balance Flywheels handpicked for performance and reliability. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best value. Whether you’re upgrading for smooth operation or longevity, this guide has you covered.
1. JEGS Flywheel | For 1971-1980 Small Block Chevy 400 | External Balance | 168 Tooth | Fits 2-Piece Rear Main Seal | Non-SFI | 14.125� Diameter

Ignite your ride with the JEGS Flywheel, built for your 1971-1980 Small Block Chevy 400! This flywheel is externally balanced to match your engine’s specs, ensuring a smooth and powerful performance.
With 168 teeth, it fits most applications, and its 14.125-inch diameter is perfect for your setup. This non-SFI approved flywheel is ready for your street adventures.
Get ready for great performance. It’s designed for your 2-piece rear main seal. Drive with confidence!
| Pros | Cons |
|---|---|
|
|
Perfect For:
This JEGS Flywheel is perfect for car enthusiasts and mechanics working on 1971-1980 Small Block Chevy 400 engines. It’s ideal for street applications and fits 2-piece rear main seals.
Ready to Purchase?
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2. JEGS Flywheel | For 1986-1992 Small Block Chevy | External Balance | 168 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 14.125� Diameter

The JEGS Flywheel is designed for 1986-1992 small block Chevy engines. It fits engines with a 1-piece rear main seal, like the 305 and 350. This flywheel is externally balanced to meet OEM specs.
It has 168 teeth, making it compatible with most applications. The diameter measures 14.125 inches, ensuring a perfect fit. This product is non-SFI approved, so it’s only for street use.
Upgrade your engine with this reliable and precise flywheel. It’s built to perform and last long.
| Pros | Cons |
|---|---|
|
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Perfect For:
This JEGS Flywheel is perfect for car enthusiasts who own a 1986-1992 Small Block Chevy and want a reliable, non-SFI approved replacement. It’s ideal for street applications, fitting 305, 350, and similar engines.
Ready to Purchase?
3. Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

This automatic transmission flexplate is a perfect fit for your Chevy 383 or 400 engine. It features a 168-tooth ring gear and external balance design.
The 2-piece rear main seal and HP bolts ensure a secure installation. Replaces OEM part 343738, making it a reliable upgrade.
| Pros | Cons |
|---|---|
|
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Perfect For:
This Automatic Transmission Flexplate is perfect for Chevy owners with a 383 or 400 engine. It’s easy to install and replaces OEM Part 343738.
Ready to Purchase?
4. HQPASFY 1845400 Flexplate, External Balance 168 Teeth and Bolts Kit, Chromoly Steel, Compatible with 1970-1990 Big Block Chevy 454 Engine Corvette/Caprice/Suburban/Silverado &More

Upgrade your 1970-1990 Big Block Chevy 454 engine with the HQPASFY 1845400 Flexplate Kit. This external balance flexplate is built for superior performance and a perfect fit, ensuring your engine runs smoothly. It’s designed to work with a variety of Chevy models, including Corvette, Caprice, Suburban, and Silverado.
This flexplate is made from strong chromoly steel. It’s built to last. You’ll experience smoother power transfer.
Enjoy reduced vibration and noise thanks to dynamic balancing. The durable design features corrosion resistance and reinforced welding for long-term reliability. Plus, it comes with a 36-month warranty for your peace of mind.
| Pros | Cons |
|---|---|
|
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Perfect For:
This HQPASFY 1845400 Flexplate is perfect for car enthusiasts and mechanics who want a reliable and durable replacement for their 1970-1990 Big Block Chevy 454 Engine. It’s ideal for those seeking a smooth and stable ride.
Ready to Purchase?
5. JEGS Flywheel | For 1972-1991 AMC/Jeep 360 Engines | External Balance | 164 Tooth | 13.875� Ring Gear Diameter | 31 LBS | Uses 10.5� Or 11� Clutch | Fits 4.625 in. O.D. Crank Flange

Upgrade your AMC/Jeep 360 engine with the JEGS Flywheel. It’s designed for a perfect fit on 1972-1991 models, replacing Jeep part number 3196929.
This flywheel is externally balanced to meet OEM specs, ensuring smooth engine performance. It features 164 teeth for wide compatibility and a 13.875” ring gear diameter.
Works with 10.5” or 11” clutches. Easy to install. Built to last.
| Pros | Cons |
|---|---|
|
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Perfect For:
This JEGS Flywheel is perfect for Jeep and AMC owners with 1972-1991 360 engines. It’s ideal for those needing a reliable replacement that fits most applications and works with 10.5” or 11” clutches.
Ready to Purchase?
6. ClutchMaxPRO Flywheel External Counter Weight Balance Compatible with 2004-2011 Mazda RX-8 1.3L 13B-MSP 6-speed (CPCW-03)

The ClutchMaxPRO Flywheel External Counter Weight Balance is a premium performance upgrade for your Mazda RX-8. It’s made in the U.S.A. with top-quality materials to ensure smooth operation at all RPM ranges.
This external counterweight balance is precisely engineered to meet or exceed SFI Certification. It includes mounting bolts and is balanced to perfection for reliable performance.
Fits 2004-2011 Mazda RX-8. Works with aftermarket flywheels only. 12-month or 15,000-mile warranty included.
| Pros | Cons |
|---|---|
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Perfect For:
This ClutchMaxPRO Flywheel is perfect for Mazda RX-8 owners who want smooth, reliable performance. It’s ideal for those upgrading to an aftermarket flywheel and seeking affordable, high-quality parts.
Ready to Purchase?
7. EFT CLUTCH FLYWHEEL EXTERNAL COUNTER WEIGHT BALANCE FOR MAZDA RX-8 13BMSP 6 SPEED

The EFT Clutch Flywheel is specially designed for the Mazda RX-8 13BMSP 6 Speed. It matches your car’s performance perfectly, ensuring smooth and reliable operation.
This product comes with top-notch support and a 12-month warranty. It’s guaranteed to fit your model, though the actual part may vary from the stock photo.
| Pros | Cons |
|---|---|
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Perfect For:
This EFT Clutch Flywheel is perfect for Mazda RX-8 owners who want reliable performance and peace of mind. It’s designed to fit your car perfectly and comes with strong support and a trusted warranty.
Ready to Purchase?
8. Flywheel New SBC External Balance

The Flywheel New SBC External Balance is a reliable automotive part. It is made by Southwest Speed. This part is built to last.
It has a simple design and is easy to install. The part number is BER-311-NC-EXT.
This external balance flywheel is a great choice for your vehicle’s engine. It is compact and lightweight, measuring 8 inches in length and width, 2 inches in height, and weighing only 4 pounds. It is a must-have for automotive enthusiasts.
| Pros | Cons |
|---|---|
|
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Perfect For:
The Flywheel New SBC External Balance is perfect for car enthusiasts and DIY mechanics who want to upgrade their vehicle’s performance. It’s easy to install and built to last, making it a great choice for anyone looking to improve their engine’s efficiency.
Ready to Purchase?
9. Fidanza 186511 164 Tooth Aluminum SFI Approved External Balance Flywheel

The Fidanza 186511 is a 164-tooth aluminum flywheel designed for Small Block Ford engines. It meets SFI safety standards, ensuring reliability. This external balance flywheel is a high-quality upgrade for your vehicle.
It weighs 13.0 pounds and has the part number 186511, matching the OEM equivalent. This flywheel is built to last and easy to install.
| Pros | Cons |
|---|---|
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Perfect For:
The Fidanza 186511 Flywheel is perfect for car enthusiasts who want to upgrade their Small Block Ford. It’s lightweight, durable, and SFI approved, making it ideal for high-performance driving.
Ready to Purchase?
10. Allstar ALL26801 Flexplate 168T SFI External Balance 86-up

The Allstar ALL26801 Flexplate is a high-quality auto part designed for 86-up models. It features a 168-tooth design and is SFI-approved for external balance.
This Made in the USA product measures 35.814 cm L x 36.83 cm W x 3.048 cm H and weighs 5.16 lbs. It’s compact, lightweight, and easy to handle.
| Pros | Cons |
|---|---|
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Perfect For:
This Allstar Flexplate is perfect for car enthusiasts who need a reliable auto part. It’s easy to handle and made in the United States.
Ready to Purchase?
Buying Guide
Finding the perfect external balance flywheel is easy with our guide. We’ll help you pick the best one for your vehicle. Let’s get started!
Buying an external balance flywheel is a smart move for better performance. We’ve tested top options to make your choice simple. Here’s what to consider:
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Vehicle Compatibility:
Make sure the flywheel fits your engine model. Check the year, make, and engine type for a perfect match. -
Material Quality:
Choose durable materials like chromoly steel or aluminum. They last longer and handle tough conditions well. -
Tooth Count:
Match the tooth count (like 164 or 168 teeth) to your clutch or transmission. It ensures smooth operation. -
Balance Type:
Confirm it’s externally balanced for your engine. This keeps vibrations low and performance high. -
SFI Approval:
If you race, pick an SFI-approved flywheel. It meets safety standards for high-speed use. -
Ease of Installation:
Look for flywheels that are easy to install. Some come with bolts or kits for quick setup. -
Warranty:
A good warranty (like 12 months or 36 months) gives you peace of mind. It shows the product is reliable. -
Price and Value:
Compare prices and features. Find a flywheel that fits your budget without sacrificing quality.
With these tips, you’ll find the best external balance flywheel for your needs. Upgrade your ride and enjoy smoother, more reliable performance!