Are you looking for the best external balance flexplates to keep your engine running smoothly? This guide offers top-quality options that fit perfectly and enhance your driving experience.
When it comes to external balance flexplates, choosing the right one is key. These parts keep your engine running smooth and strong.
You want a flexplate that fits perfectly. It must be tough and reliable. It should match your engine’s balance type.
Many users find the right flexplate changes their driving experience. It feels smoother and more responsive. You can trust this guide to help you pick the best external balance flexplate for your needs.
List of Top 10 External Balances
| Image | Title | Best For | Price |
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Speedway Motors 168 Tooth Flexplate for 1986-1997 SBC with 1-Piece Rear Main Seal, External Balance Replacement for 305/350 Engines, Ideal for Engine or Transmission Installs |
This flexplate is perfect for car owners and mechanics working on 1986-1997 Small Block Chevy engines. It is great for anyone who needs a strong, reliable part when putting in a new engine or transmission. If you want a direct-fit, long-lasting flexplate that matches your V8 setup, this is made for you. |
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Allstar Performance ALL26801 SBC 168T SFI 29.1 External Balance Flexplate |
This Allstar Performance Flexplate is perfect for car enthusiasts who want reliable auto parts. It’s ideal for upgrading your vehicle with quality and precision. |
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Allstar Performance ALL26806 168T Standard External Balance Flexplate for Small Block Chevy |
This flexplate is perfect for Small Block Chevy engines needing a standard external balance setup. Mechanics, car enthusiasts, and DIYers will love its strong build and reliable performance for auto repair or upgrades. |
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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 perfect for Chevy owners rebuilding 1986–1997 4.3L, 305, or 350 engines needing an external balance design. It suits DIY mechanics and pros upgrading or fixing engines with a 1-piece rear main seal. The 153-tooth ring gear ensures smooth starter engagement, while durable steel and a secure bolt pattern guarantee reliable performance. |
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Speedmaster PCE226.1003 Compatible with Chevy SBC 383 400 2Pc Rms 168 Tooth 11″ External Balance Heavy Duty Flexplate |
This heavy-duty flexplate is perfect for Chevy SBC 383 and 400 engine owners looking for a track-proven and innovative upgrade. It’s built to last through all your adventures, with a 12-month warranty for peace of mind. |
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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 need a reliable and durable replacement for their 1970-1990 Big Block Chevy 454 Engine. It’s ideal for Corvette, Caprice, Suburban, Silverado, and more, offering a hassle-free install and long-lasting performance. |
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Powerbond Balancers Harmonic Balancer, Claimer, 7.990 in OD, Steel, Black Paint, External Balance, Big Block Chevy, Each |
This product is perfect for Big Block Chevy owners or mechanics needing a durable, precise harmonic balancer. Its steel construction and external balance design ensure smooth, stable power for high-performance engines. |
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TCI 399773 Chevrolet 1-Piece Rear Main SBC (’86-’99) ; External Balance; Dual Bolt Pattern |
This flexplate is perfect for Small Block Chevy mechanics and enthusiasts needing a vehicle-specific replacement. It suits engines from 1986-1999 with external balance and dual bolt patterns. Built for precision and durability, it meets SFI 29.1 safety standards. |
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Scat Enterprises Crankshaft, Pro Stock 9000 Series, 3.750 in Stroke, External Balance, Cast Iron, 2-Piece Seal, Small Block Chevy, Each |
This Scat Enterprises Crankshaft is perfect for car enthusiasts and professional builders who want to boost their Small Block Chevy’s performance. It fits those who need a durable, high-quality crankshaft with a 3.750-inch stroke and external balance. If you want a reliable part that handles power and lasts long, this is the smart choice for your engine build. |
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Allstar Performance ALL26820 168T 454 SFI External Balance Flexplate |
This Allstar Performance ALL26820 168T 454 SFI External Balance Flexplate is perfect for anyone who wants a strong and reliable part for their engine. It fits well for those who need an externally balanced flexplate made in the United States and want a lightweight but durable solution. |
Detailed Reviews
Discover the best external balances chosen from expert reviews and real user feedback. This guide offers clear insights to help you pick the perfect fit for your needs. Trust us to deliver the top options for quality, performance, and value.
1. Speedway Motors 168 Tooth Flexplate for 1986-1997 SBC with 1-Piece Rear Main Seal, External Balance Replacement for 305/350 Engines, Ideal for Engine or Transmission Installs

The Speedway Motors 168 Tooth Flexplate is a perfect fit for 1986-1997 Small Block Chevy engines. It works with externally balanced 305 and 350 V8s using a 1-piece rear main seal. This flexplate ensures a smooth, reliable connection for your engine or transmission install.
It is built with a strong 168-tooth design for durability. The flexplate is made to last in both street and performance setups.
This flexplate matches the original equipment style for external balance configurations. It is the ideal replacement for keeping your engine running right. Install it anytime you swap an engine or transmission for the best results.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for car owners and mechanics working on 1986-1997 Small Block Chevy engines. It is great for anyone who needs a strong, reliable part when putting in a new engine or transmission. If you want a direct-fit, long-lasting flexplate that matches your V8 setup, this is made for you.
Ready to Purchase?
2. Allstar Performance ALL26801 SBC 168T SFI 29.1 External Balance Flexplate

The Allstar Performance ALL26801 is a high-quality auto part. It’s designed for SBC 168T engines. This flexplate meets SFI 29.1 safety standards.
It features an external balance design. The package dimensions are 35.814 cm L x 36.83 cm W x 3.048 cm H. It weighs 5.16 lbs, making it easy to handle.
This product is made in the United States. It’s a reliable choice for your vehicle.
| Pros | Cons |
|---|---|
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Perfect For:
This Allstar Performance Flexplate is perfect for car enthusiasts who want reliable auto parts. It’s ideal for upgrading your vehicle with quality and precision.
Ready to Purchase?
3. Allstar Performance ALL26806 168T Standard External Balance Flexplate for Small Block Chevy

The Allstar Performance ALL26806 is a reliable flexplate for your car. It fits Small Block Chevy engines perfectly.
This part is made in the United States. It weighs 5.45 pounds and measures 36 cm by 36.8 cm by 2.8 cm.
It’s a standard external balance design. This auto part ensures smooth engine performance.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for Small Block Chevy engines needing a standard external balance setup. Mechanics, car enthusiasts, and DIYers will love its strong build and reliable performance for auto repair or upgrades.
Ready to Purchase?
4. 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 Speedway Motors 153 Tooth Flexplate works with 1986–1997 Chevy small block engines. It fits 4.3L, 305, and 350 models with a 1-piece rear main seal and external balance design.
The 153-tooth ring gear ensures smooth starter engagement. It uses a 3 on 10-3/4 inch bolt pattern for secure torque converter mounting. The steel construction offers durability for engine or transmission swaps.
External balance design matches 1986–1997 V8 needs. Precise bolt spacing prevents installation errors. Steel material resists wear for long-term use.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for Chevy owners rebuilding 1986–1997 4.3L, 305, or 350 engines needing an external balance design. It suits DIY mechanics and pros upgrading or fixing engines with a 1-piece rear main seal. The 153-tooth ring gear ensures smooth starter engagement, while durable steel and a secure bolt pattern guarantee reliable performance.
Ready to Purchase?
5. Speedmaster PCE226.1003 Compatible with Chevy SBC 383 400 2Pc Rms 168 Tooth 11″ External Balance Heavy Duty Flexplate

The Speedmaster PCE226.1003 flexplate is designed for Chevy SBC 383 and 400 engines. It features a 2-piece RMS and 168-tooth design for a perfect fit.
This product is built with old and new technology in mind. It is created to withstand road, race, and recreational use. It is track proven for long-lasting durability.
The 12-month worldwide warranty backs its performance. You can trust this flexplate for its reliability. It is a heavy-duty flexplate that ensures your engine stays balanced.
| Pros | Cons |
|---|---|
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Perfect For:
This heavy-duty flexplate is perfect for Chevy SBC 383 and 400 engine owners looking for a track-proven and innovative upgrade. It’s built to last through all your adventures, with a 12-month warranty for peace of mind.
Ready to Purchase?
6. 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 fits 1970–1990 Big Block Chevy 454 engines. It works with Corvettes, Caprices, Suburbans, and Silverados. The external balance design ensures OEM fit with included bolts.
Built from chromoly steel, it resists wear and fatigue better than standard plates. Reinforced design reduces flexing for smoother torque converter engagement. Each plate is dynamically balanced to cut vibration at all RPMs.
Corrosion-resistant finish and strong ring gear welding boost durability. The 24-month warranty covers defects and quality issues. Contact the brand for support or replacements.
| Pros | Cons |
|---|---|
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Perfect For:
This HQPASFY 1845400 Flexplate is perfect for car enthusiasts and mechanics who need a reliable and durable replacement for their 1970-1990 Big Block Chevy 454 Engine. It’s ideal for Corvette, Caprice, Suburban, Silverado, and more, offering a hassle-free install and long-lasting performance.
Ready to Purchase?
7. Powerbond Balancers Harmonic Balancer, Claimer, 7.990 in OD, Steel, Black Paint, External Balance, Big Block Chevy, Each

The Powerbond Balancers Harmonic Balancer is built tough. It is made of strong steel with a sleek black paint finish. This part fits Big Block Chevy engines perfectly.
It measures 7.990 inches in outside diameter. It is designed for external balance applications.
The package weighs about 15 pounds. Its size is easy to handle with a length of 9.62 inches.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for Big Block Chevy owners or mechanics needing a durable, precise harmonic balancer. Its steel construction and external balance design ensure smooth, stable power for high-performance engines.
Ready to Purchase?
8. TCI 399773 Chevrolet 1-Piece Rear Main SBC (’86-’99) ; External Balance; Dual Bolt Pattern

Upgrade your Chevrolet with this high-quality TCI flexplate. It’s designed for SBC engines from ’86 to ’99. Get reliable performance for your ride.
This 1-piece rear main flexplate is built for external balance. It features a dual bolt pattern for easy installation. Enjoy a perfect fit with its vehicle-specific design.
It’s a durable part that weighs 3.379 kilograms. Make your engine run smoothly.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for Small Block Chevy mechanics and enthusiasts needing a vehicle-specific replacement. It suits engines from 1986-1999 with external balance and dual bolt patterns. Built for precision and durability, it meets SFI 29.1 safety standards.
Ready to Purchase?
9. Scat Enterprises Crankshaft, Pro Stock 9000 Series, 3.750 in Stroke, External Balance, Cast Iron, 2-Piece Seal, Small Block Chevy, Each

The Scat Enterprises Crankshaft is a high-performance auto part designed for small block Chevy engines. It’s part of the Pro Stock 9000 Series, built for reliability and power.
This crankshaft has a 3.750-inch stroke and external balance, perfect for racing or high-performance builds. It’s made from durable cast iron and features a 2-piece seal for added strength.
The package measures 9.24 inches high, 24.79 inches long, and 11.02 inches wide. It’s a single unit, ready to upgrade your engine with top-quality performance.
| Pros | Cons |
|---|---|
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Perfect For:
This Scat Enterprises Crankshaft is perfect for car enthusiasts and professional builders who want to boost their Small Block Chevy’s performance. It fits those who need a durable, high-quality crankshaft with a 3.750-inch stroke and external balance. If you want a reliable part that handles power and lasts long, this is the smart choice for your engine build.
Ready to Purchase?
10. Allstar Performance ALL26820 168T 454 SFI External Balance Flexplate

The Allstar Performance ALL26820 flexplate is made for power. It has a strong 168 teeth count. This part fits perfectly with your engine needs.
It is externally balanced for smooth operation. The flexplate weighs just under 7 pounds, making it light yet durable.
Made in the United States, it meets high-quality standards. The package size is easy to handle at just over 36 centimetres long and wide.
| Pros | Cons |
|---|---|
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Perfect For:
This Allstar Performance ALL26820 168T 454 SFI External Balance Flexplate is perfect for anyone who wants a strong and reliable part for their engine. It fits well for those who need an externally balanced flexplate made in the United States and want a lightweight but durable solution.
Ready to Purchase?
Buying Guide
Choosing the right external balance flexplate is crucial for engine performance. It ensures a smooth and powerful ride.
Here’s how to pick the best one for your needs:
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Engine Compatibility: Make sure the flexplate matches your specific engine model. This includes checking the number of teeth on the ring gear and the engine’s balance type. A proper fit prevents issues and ensures optimal function.
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Material and Durability: Look for flexplates made from strong materials like chromoly steel. These are built to last and can handle the demands of your engine. A durable flexplate means fewer worries and more reliable performance.
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SFI Certification: For safety, choose a flexplate that is SFI certified. This means it has met strict safety standards for high-performance applications. It’s a key indicator of quality and reliability.
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Balance Type: Confirm the flexplate is designed for external balance. This is critical for engines that require it to run smoothly. Using the wrong balance type can lead to vibrations and damage.
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Tooth Count: The number of teeth on the flexplate affects how your starter engages. Common counts are 168 or 153 teeth. Ensure it matches your starter and flywheel.
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Rear Main Seal Type: Pay attention to whether your engine uses a 1-piece or 2-piece rear main seal. The flexplate must be designed to work with your specific seal type. This ensures a proper seal and prevents leaks.
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Brand Reputation: Opt for reputable brands known for quality automotive parts. Brands like Speedway Motors, Allstar Performance, and TCI have a track record of producing reliable components.
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Warranty: A good warranty offers peace of mind. It shows the manufacturer stands behind their product. Check the warranty period and what it covers before buying.
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Ease of Installation: Some flexplates feature a dual bolt pattern, making installation easier. This can save you time and effort during your engine or transmission project.
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Weight and Dimensions: While less critical, the weight and dimensions can be a factor, especially for custom builds. Ensure the flexplate fits within your engine bay and meets any weight requirements.
Happy motoring!