Looking for the best external balance flexplates to boost your Chevy engine’s performance?
Discover top-tested options engineered for strength, precision, and durability, whether you’re hitting the street or the track.
Your engine’s power and smooth operation start with the right flexplate. A top-tier external balance flexplate ensures reliable performance under pressure. Trust these picks to handle high RPMs, heavy torque, and daily driving demands.
We’ve tested the best for strength, precision, and longevity. Each pick beats stock parts with thicker steel, dynamic balancing, and race-proven builds.
Your ride deserves zero vibration and maximum durability. Dive into our guide to find the perfect flexplate for your Chevy engine. From street driving to track days, we’ve got your engine’s future covered.
List of Top 10 External Balance Flexplates
| Image | Title | Best For | Price |
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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 to upgrade their vehicle’s performance. It’s ideal for those working on SBC engines and looking for a reliable, high-quality auto part. |
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PRW 1845400 SFI-Rated External 168 Teeth Balance Chromoly Steel Flexplate for Chevy 454 1970-90, Early, White Zinc |
This flexplate is perfect for racers and high-performance Chevy 454 builders needing strong, reliable parts. It’s made for heavy-duty racing with SFI-certified safety, extra thickness, and double-welded gears to handle high RPMs and torque. |
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Allstar Performance ALL26810 168T 400 SFI External Balance Flexplate |
This flexplate is perfect for car enthusiasts and mechanics upgrading or repairing SB Chevy 400 engines. It suits those needing a stronger, thicker plate with SFI approval for safety and dual bolt patterns for flexibility. |
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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 Speedway Motors Flexplate is perfect for anyone working on a 1986-1997 Small Block Chevy engine with a 1-piece rear main seal. If you’re installing a new engine or transmission, this reliable 168-tooth flexplate is a must-have replacement for your 305 or 350 engine. |
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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 Speedway Motors 153 Tooth Flexplate is perfect for Chevy engine owners working on 1986–1997 Small Block engines with a 1-piece rear main seal. It’s ideal for anyone needing a reliable steel flexplate for their 4.3L, 305, or 350 engine rebuild or transmission swap. |
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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 owners of 1970-1990 Big Block Chevy 454 engines, like those in Corvettes, Caprices, Suburbans, and Silverados, who want a stronger, more stable, and durable upgrade for their vehicle. |
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Allstar Performance ALL26806 168T Standard External Balance Flexplate for Small Block Chevy |
This flexplate is perfect for car enthusiasts and mechanics working on Small Block Chevy engines. It ensures strong power transfer and smooth performance with its 168-tooth design and external balance setup. |
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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 who demand track-proven performance and lasting durability. Get ready to experience unmatched reliability with a product built for the toughest conditions! |
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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 builders or rebuilders needing a reliable, compatible part for two-piece rear main seal setups. Its 168-tooth design ensures smooth starter engagement, while dual bolt patterns support common automatic transmissions. Ideal for standard street-driven vehicles where durability and proper balance matter. |
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Automotive Racing Products ARP 200-2906 Chevy external balance flexplate bolt kit – Set of 6 |
This bolt kit is perfect for car enthusiasts and mechanics working on Chevy engines with external balance flexplate setups. The durable bolts ensure a secure connection, making them ideal for high-performance builds that require reliable performance under heavy use. |
Detailed Reviews
Discover top picks for external balance flexplates, chosen through expert analysis and real-world feedback. Each option delivers durable construction, high-performance specs, and smooth operation for Chevy engines. From SFI-certified racing builds to daily driver reliability, these flexplates ensure perfect fit and long-lasting strength. Find your ideal match to unlock power, precision, and peace of mind.
1. Allstar Performance ALL26801 SBC 168T SFI 29.1 External Balance Flexplate
Upgrade your engine with the Allstar Performance ALL26801 SBC 168T SFI 29.1 External Balance Flexplate. This high-quality auto part is built for durability and performance.
It’s made in the United States. The package dimensions are clear. It weighs 5.16 lbs.
This flexplate ensures smooth operation for your vehicle. Get ready for a reliable and powerful driving experience.
| Pros | Cons |
|---|---|
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Perfect For:
This Allstar Performance Flexplate is perfect for car enthusiasts who want to upgrade their vehicle’s performance. It’s ideal for those working on SBC engines and looking for a reliable, high-quality auto part.
Ready to Purchase?
2. PRW 1845400 SFI-Rated External 168 Teeth Balance Chromoly Steel Flexplate for Chevy 454 1970-90, Early, White Zinc
The PRW 1845400 Flexplate is SFI 29.1 certified and built for racing. It’s 0.035 inches thicker than stock flexplates, making it stronger and more reliable.
This flexplate is designed for Chevy 454 engines (1970-90). It exceeds OEM specs and features double-welded ring gears to handle high RPM and stress.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for racers and high-performance Chevy 454 builders needing strong, reliable parts. It’s made for heavy-duty racing with SFI-certified safety, extra thickness, and double-welded gears to handle high RPMs and torque.
Ready to Purchase?
3. Allstar Performance ALL26810 168T 400 SFI External Balance Flexplate
The Allstar Performance ALL26810 is a 168-tooth flexplate for SB Chevy 400 engines. It is SFI-approved and meets 29.1 specs. This flexplate is designed for external balance.
It is gold iridite plated for added durability. The plate is .035″ thicker than stock.
This flexplate features dual converter bolt patterns. It is made to provide strong performance and reliability.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for car enthusiasts and mechanics upgrading or repairing SB Chevy 400 engines. It suits those needing a stronger, thicker plate with SFI approval for safety and dual bolt patterns for flexibility.
Ready to Purchase?
4. 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 Speedway Motors flexplate fits 1986–1997 Small Block Chevy engines with a 1-piece rear main seal. It works perfectly with 305 and 350 V8s needing a 168-tooth design.
Built strong for street and performance use, this non-SFI flexplate lasts long. Always install a new one with a fresh engine or transmission. It matches OE external balance specs for reliable setup.
| Pros | Cons |
|---|---|
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Perfect For:
This Speedway Motors Flexplate is perfect for anyone working on a 1986-1997 Small Block Chevy engine with a 1-piece rear main seal. If you’re installing a new engine or transmission, this reliable 168-tooth flexplate is a must-have replacement for your 305 or 350 engine.
Ready to Purchase?
5. 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 fits 1986–1997 Chevy Small Block engines. It works with 4.3L, 305, and 350 engines. This flexplate has a 1-piece rear main seal for easy installation.
It has a 153-tooth ring gear for proper starter engagement. The 3 on 10-3/4 inch bolt pattern ensures a secure fit.
Made from strong steel, it lasts long. The external balance design keeps the engine running smooth. It is perfect for V8 engines from 1986 to 1997.
| Pros | Cons |
|---|---|
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Perfect For:
This Speedway Motors 153 Tooth Flexplate is perfect for Chevy engine owners working on 1986–1997 Small Block engines with a 1-piece rear main seal. It’s ideal for anyone needing a reliable steel flexplate for their 4.3L, 305, or 350 engine rebuild or transmission swap.
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
Upgrade your ride with the HQPASFY 1845400 Flexplate. This external balance flexplate is built for Big Block Chevy 454 engines from 1970-1990. It ensures a perfect OEM fit with all hardware included.
Crafted from premium chromoly steel, this flexplate offers superior strength. Its reinforced design minimizes flexing for smoother engagement. Enjoy reduced vibration and noise thanks to dynamic balancing.
This durable flexplate features corrosion resistance. It also comes with a 24-month warranty for your peace of mind.
| Pros | Cons |
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Perfect For:
This HQPASFY 1845400 Flexplate is perfect for owners of 1970-1990 Big Block Chevy 454 engines, like those in Corvettes, Caprices, Suburbans, and Silverados, who want a stronger, more stable, and durable upgrade for their vehicle.
Ready to Purchase?
7. Allstar Performance ALL26806 168T Standard External Balance Flexplate for Small Block Chevy
Ignite your engine’s power with the Allstar Performance ALL26806 Flexplate. This essential auto part is built for peak performance. It’s designed for Small Block Chevy engines.
This flexplate ensures a secure connection. It’s a vital component for your vehicle’s drivetrain.
Crafted in the United States, this durable flexplate weighs 5.45 lbs. Get ready for a smoother, more powerful ride.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for car enthusiasts and mechanics working on Small Block Chevy engines. It ensures strong power transfer and smooth performance with its 168-tooth design and external balance setup.
Ready to Purchase?
8. Speedmaster PCE226.1003 Compatible with Chevy SBC 383 400 2Pc Rms 168 Tooth 11″ External Balance Heavy Duty Flexplate
The Speedmaster PCE226.1003 is a heavy-duty flexplate designed for Chevy SBC 383 and 400 engines. It has 168 teeth and measures 11 inches in diameter. This external balance plate is built for durability.
The product is track proven and can endure the long road, race, and recreation conditions. It’s made to bring you closer to product perfection.
Enjoy a 12-month limited worldwide warranty for peace of mind. This product ensures reliable performance for your engine needs. Speedmaster combines old and new technology for innovation.
| Pros | Cons |
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Perfect For:
This heavy-duty flexplate is perfect for Chevy SBC 383 and 400 engine owners who demand track-proven performance and lasting durability. Get ready to experience unmatched reliability with a product built for the toughest conditions!
Ready to Purchase?
9. 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 fits Chevy small block 400 engines with a two-piece rear main seal. It has a 168-tooth ring gear for smooth starter engagement. The external balance design ensures proper operation.
Dual bolt patterns (10-3/4″ and 11-1/2″) match common automatic transmissions. Replace it when installing a new engine or transmission for reliability.
It’s built for street-driven vehicles with a 14-1/4″ diameter. No SFI rating means it’s for standard use, not racing. A simple, durable choice for daily drivers.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for Chevy small block 400 engine builders or rebuilders needing a reliable, compatible part for two-piece rear main seal setups. Its 168-tooth design ensures smooth starter engagement, while dual bolt patterns support common automatic transmissions. Ideal for standard street-driven vehicles where durability and proper balance matter.
Ready to Purchase?
10. Automotive Racing Products ARP 200-2906 Chevy external balance flexplate bolt kit – Set of 6
Get ready to boost your Chevy’s performance with this Automotive Racing Products ARP 200-2906 flexplate bolt kit. It’s designed for external balance and includes 6 high-quality bolts.
These bolts are built tough. They ensure a secure connection for your flexplate. Upgrade your ride with confidence.
This kit is a must-have for any serious racer. Experience reliable performance on the track. Drive with peace of mind.
| Pros | Cons |
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Perfect For:
This bolt kit is perfect for car enthusiasts and mechanics working on Chevy engines with external balance flexplate setups. The durable bolts ensure a secure connection, making them ideal for high-performance builds that require reliable performance under heavy use.
Ready to Purchase?
Buying Guide
Choosing the right external balance flexplate boosts your engine’s power and smooth operation. It handles high RPMs, heavy torque, and daily driving demands. Trust our guide to find the perfect fit for your Chevy engine.
Factors to Consider When Buying an External Balance Flexplate:
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Engine Compatibility:
Ensure the flexplate matches your engine type (e.g., Small Block Chevy, Big Block Chevy). Check tooth count, bolt patterns, and rear main seal type for a perfect fit. -
Material Quality:
Look for chromoly steel or thickened steel for durability. Premium materials resist flexing, reduce vibration, and handle high stress. -
SFI Certification:
For racing or high-performance use, choose SFI 29.1 certified flexplates. They meet safety and strength standards for extreme conditions. -
Balance Design:
External balance flexplates ensure smooth engine operation. Verify it matches your engine’s balance requirements for zero vibration. -
Bolt Patterns:
Check for dual bolt patterns if using different transmissions. A secure fit prevents slippage and ensures reliability. -
Warranty:
Opt for flexplates with warranties (e.g., 12-month or 24-month). It guarantees peace of mind and long-term performance. -
Brand Reputation:
Trust brands like Allstar Performance, PRW, and Speedway Motors. They offer race-proven builds and reliable parts. -
Installation Needs:
Always install a new flexplate with a fresh engine or transmission. Follow manufacturer guidelines for a secure setup.