Looking for the best compatible external balanced flywheel for your engine upgrade or repair?
We’ve tested top options to ensure no guesswork, easy installation, and smooth performance for Chevy, Ford, Mazda, Big Block engines, and more.
Finding the right external balanced flywheel can make a big difference in your engine’s performance. Whether you’re upgrading your car or fixing a problem, the right part ensures smooth and reliable operation.
We’ve researched and tested top options to bring you the best compatible external balanced flywheels. From Chevy to Ford, Mazda to Big Block engines, we’ve got you covered.
No more guesswork. Easy installation. Top performance. Let’s get started!
List of Top 10 Compatible With External Balanced Flywheel
| Image | Title | Best For | Price |
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Speedway Motors 153 Tooth Flexplate External Balance Compatible with 1986–1997 Chevy Small Block 4.3 305 350 Engines 1 Piece Rear Main Seal Steel Design |
This flexplate is ideal for mechanics or DIY car enthusiasts working on 1986–1997 Chevy 4.3L, 305, or 350 engines. Its 153-tooth design ensures smooth starter engagement, while the external balance and steel construction provide durable performance for engine or transmission upgrades. |
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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 driving experience. |
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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 product is perfect for 2004-2011 Mazda RX-8 owners with a 1.3L 13B-MSP 6-speed engine seeking enhanced clutch performance. Designed for use with aftermarket flywheels, it delivers smooth operation, SFI-certified durability, and a 12-month warranty for reliable, high-quality results. |
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ClutchMaxPRO Performance Stage 2 Clutch Kit with Chromoly Flywheel with Balance Weight Compatible with Mazda 2004-2011 RX8 1.3L 13B-MSP 6 Speed (CP10061HDLSF-CW-03-ST2) |
This ClutchMaxPRO kit is perfect for Mazda RX-8 owners seeking reliable performance upgrades. It suits drivers needing daily driving durability and track-ready power handling (up to 364 HP / 294 lb-ft), with all parts included for easy installation. |
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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 who need a reliable replacement for their 383 or 400 engines. It’s easy to install and works great for external balanced setups. |
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Speedway Motors Flexplate 168 Tooth Compatible with Chevy Small Block 400 Engine Two Piece Rear Main Seal External Balance Dual Bolt Pattern Non SFI |
This flexplate is perfect for Chevy small block 400 engine owners who need a reliable replacement for their automatic transmission. It’s ideal for standard street-driven cars, ensuring smooth starter engagement and easy installation. |
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ClutchMaxPRO Performance Stage 4 Clutch Kit with Chromoly Flywheel with Balance Weight Compatible with Mazda 2004-2011 RX8 1.3L 13B-MSP 6 Speed (CP10061HDCLSF-CW-03-ST4) |
This ClutchMaxPRO Performance Stage 4 Clutch Kit is perfect for Mazda RX-8 owners who want reliable, high-performance upgrades. It’s ideal for track use, spirited driving, or daily commutes. |
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Speedmaster 1-229-014 Compatible with Ford 429 460 164 Tooth Internal/External Bal. DNA Billet SFI Flywheel |
This Speedmaster flywheel is perfect for car enthusiasts and professional racers who want reliable performance. It’s ideal for Ford 429 and 460 engines, offering durability and precision for road, race, or recreation. |
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Speedmaster PCE229.1008 Compatible with Chevy BBC 454 2Pc Rms 168 Tooth 11″ External Bal. Billet Steel SFI Flywheel |
This flywheel is perfect for car enthusiasts who want reliable performance. It’s great for racing or daily use, ensuring smooth and strong operation. |
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Flywheel SBF 260-289 Steel SFI | Pro Series – 157 Tooth | SFI 1.1 | Steel | External Balance | Compatible with 1964-1969 Small Block Ford | Each |
This Flywheel is perfect for car enthusiasts who want a reliable and durable replacement part. It’s ideal for 1964-1969 Small Block Ford owners looking to restore or upgrade their vehicle with easy installation and trusted performance. |
Detailed Reviews
Looking for the best external balanced flywheel? Our guide highlights top picks tested by experts and real users. Each product offers durable steel construction, SFI certification, and precise balance for smooth performance. Whether you drive a Chevy, Ford, or Mazda, find your perfect match fast.
1. Speedway Motors 153 Tooth Flexplate External Balance Compatible with 1986–1997 Chevy Small Block 4.3 305 350 Engines 1 Piece Rear Main Seal Steel Design
The Speedway Motors 153 Tooth Flexplate is perfect for 1986–1997 Chevy Small Block engines. It fits 4.3L, 305, and 350 models with a 1-piece rear main seal.
Made of durable steel, it ensures reliable performance. Features a 153-tooth ring gear and 3 on 10-3/4 inch bolt pattern for easy installation.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is ideal for mechanics or DIY car enthusiasts working on 1986–1997 Chevy 4.3L, 305, or 350 engines. Its 153-tooth design ensures smooth starter engagement, while the external balance and steel construction provide durable performance for engine or transmission upgrades.
Ready to Purchase?
2. 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
The HQPASFY 1845400 Flexplate is perfect for 1970-1990 Big Block Chevy 454 engines. It fits Corvette, Caprice, Suburban, Silverado, and more. All hardware is included for easy installation.
Made from premium chromoly steel, it’s stronger and more durable. The reinforced design reduces flexing and ensures smoother transmission engagement.
This kit comes with a 36-month warranty. It’s built to last with corrosion-resistant treatment. Contact us for any questions or support.
| 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 driving experience.
Ready to Purchase?
3. 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 is designed for 2004-2011 Mazda RX-8. It works with 1.3L 13B-MSP engines and 6-speed transmissions. This part ensures smooth performance at all RPMs.
Made from billet steel, it meets SFI Certification standards. It includes 6 mounting bolts for easy installation. Balanced to 0.25 oz inch, it guarantees perfect operation.
All ClutchMaxPRO products are made in the U.S.A. They come with a 12-month or 15,000-mile warranty. Buy with confidence for your Mazda RX-8.
| Pros | Cons |
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Perfect For:
This product is perfect for 2004-2011 Mazda RX-8 owners with a 1.3L 13B-MSP 6-speed engine seeking enhanced clutch performance. Designed for use with aftermarket flywheels, it delivers smooth operation, SFI-certified durability, and a 12-month warranty for reliable, high-quality results.
Ready to Purchase?
4. ClutchMaxPRO Performance Stage 2 Clutch Kit with Chromoly Flywheel with Balance Weight Compatible with Mazda 2004-2011 RX8 1.3L 13B-MSP 6 Speed (CP10061HDLSF-CW-03-ST2)
ClutchMaxPRO Performance Stage 2 Clutch Kit boosts your Mazda RX-8’s power handling. It safely manages 364 HP / 294 lb-ft of torque. This kit includes a lightweight flywheel, heavy-duty parts, and tools for easy install.
The Chromoly flywheel cuts weight for faster revs. A 12-month/15,000-mile warranty ensures peace of mind.
| Pros | Cons |
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Perfect For:
This ClutchMaxPRO kit is perfect for Mazda RX-8 owners seeking reliable performance upgrades. It suits drivers needing daily driving durability and track-ready power handling (up to 364 HP / 294 lb-ft), with all parts included for easy installation.
Ready to Purchase?
5. 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 is externally balanced for smooth operation.
The 2-piece rear main seal style ensures a secure seal, preventing leaks and maintaining engine performance. It’s a direct replacement for the OEM part, making installation easy.
Non-SFI approved, replaces OEM 343738, includes HP bolts.
| Pros | Cons |
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Perfect For:
This Automatic Transmission Flexplate is perfect for Chevy owners who need a reliable replacement for their 383 or 400 engines. It’s easy to install and works great for external balanced setups.
Ready to Purchase?
6. Speedway Motors Flexplate 168 Tooth Compatible with Chevy Small Block 400 Engine Two Piece Rear Main Seal External Balance Dual Bolt Pattern Non SFI
Speedway Motors Flexplate is designed for Chevy small block 400 engines. It works with two-piece rear main seals only. This flexplate ensures reliable starter engagement.
It has 168 teeth and external balance for smooth operation. The dual bolt patterns fit common automatic transmissions. Built for street-driven use, it’s non-SFI rated.
| Pros | Cons |
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Perfect For:
This flexplate is perfect for Chevy small block 400 engine owners who need a reliable replacement for their automatic transmission. It’s ideal for standard street-driven cars, ensuring smooth starter engagement and easy installation.
Ready to Purchase?
7. ClutchMaxPRO Performance Stage 4 Clutch Kit with Chromoly Flywheel with Balance Weight Compatible with Mazda 2004-2011 RX8 1.3L 13B-MSP 6 Speed (CP10061HDCLSF-CW-03-ST4)
The ClutchMaxPRO Performance Stage 4 Clutch Kit is made in the U.S.A. for top quality. It’s perfect for track and street use. The kit includes a lightweight flywheel and high-performance parts.
This kit fits 2004-2011 Mazda RX-8 models. It handles up to 435 HP and comes with a 12-month warranty.
| Pros | Cons |
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Perfect For:
This ClutchMaxPRO Performance Stage 4 Clutch Kit is perfect for Mazda RX-8 owners who want reliable, high-performance upgrades. It’s ideal for track use, spirited driving, or daily commutes.
Ready to Purchase?
8. Speedmaster 1-229-014 Compatible with Ford 429 460 164 Tooth Internal/External Bal. DNA Billet SFI Flywheel
This flywheel fits Ford 429 and 460 engines. It has 164 teeth for smooth performance. The DNA Billet design blends old and new tech for durability.
Built to last, it’s SFI-certified for safety and strength. Track Proven testing ensures it handles racing, daily driving, and tough conditions.
| Pros | Cons |
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Perfect For:
This Speedmaster flywheel is perfect for car enthusiasts and professional racers who want reliable performance. It’s ideal for Ford 429 and 460 engines, offering durability and precision for road, race, or recreation.
Ready to Purchase?
9. Speedmaster PCE229.1008 Compatible with Chevy BBC 454 2Pc Rms 168 Tooth 11″ External Bal. Billet Steel SFI Flywheel
Speedmaster PCE229.1008 is a high-quality flywheel designed for Chevy BBC 454 engines. It features a 2-piece RMS design and a 168-tooth, 11-inch external balance. This flywheel is SFI-approved for safety and performance.
Built to last, this flywheel meets Speedmaster’s “Track Proven” standards. It handles road, race, and recreation with ease. Its billet steel construction ensures durability and reliability.
Inspired by old and new technology, Speedmaster creates unique and distinctive products. Their empowered workforce drives innovation. This flywheel is a testament to their commitment to quality and performance.
| Pros | Cons |
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Perfect For:
This flywheel is perfect for car enthusiasts who want reliable performance. It’s great for racing or daily use, ensuring smooth and strong operation.
Ready to Purchase?
10. Flywheel SBF 260-289 Steel SFI | Pro Series – 157 Tooth | SFI 1.1 | Steel | External Balance | Compatible with 1964-1969 Small Block Ford | Each
This flywheel fits 1964-1969 Small Block Ford engines. It meets factory specs. SFI 1.1 certified for safety and quality.
Installation is quick. No modifications needed. Designed for a secure, high-performance fit.
Made from durable steel, it resists wear. Handles daily driving and tough conditions. External balance ensures smooth operation.
| Pros | Cons |
|---|---|
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Perfect For:
This Flywheel is perfect for car enthusiasts who want a reliable and durable replacement part. It’s ideal for 1964-1969 Small Block Ford owners looking to restore or upgrade their vehicle with easy installation and trusted performance.
Ready to Purchase?
Buying Guide
Finding the right external balanced flywheel boosts your engine’s performance. It ensures smooth and reliable operation.
Choosing the best flywheel can feel overwhelming, but we’ve made it easy. Here’s what to consider for a perfect fit.
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Compatibility:
Check if the flywheel fits your engine model and year. Wrong parts can cause issues. -
Material:
Look for durable materials like steel or chromoly. They last longer and handle stress better. -
Tooth Count:
Match the tooth count to your engine’s specs. Mismatched teeth affect performance. -
Balance Type:
Ensure it’s externally balanced for your engine. This keeps vibrations low. -
Bolt Pattern:
Verify the bolt pattern matches your setup. It ensures easy and secure installation. -
Warranty:
Choose products with a warranty. It gives peace of mind and shows quality. -
Certification:
Look for SFI certification if needed. It ensures safety and performance standards. -
Brand Reputation:
Trust reliable brands known for quality. They often offer better support. -
Installation:
Pick flywheels with included hardware. It makes installation faster and simpler.
With these tips, you’ll find the perfect external balanced flywheel for your needs.