Best External Balanced Flywheels: Smooth Power

Are you looking for the best external balanced flywheels to enhance your engine’s performance? We offer top-quality flywheels that fit both classic and modern Chevy engines, ensuring a smooth, reliable, and powerful driving experience.

Discover the best external balanced flywheels designed to boost your engine’s power and reliability. These flywheels fit perfectly with classic and modern Chevy engines, ensuring smooth and efficient performance.

Choosing the right flywheel can transform your driving experience. With options tailored for different engine models and seals, you get the perfect match for your setup every time.

Easy to install. Built to last. Ready to perform. Dive in and find the ideal external balanced flywheel for your vehicle today.

List of Top 10 External Balanced Flywheels

Image Title Best For Price
JEGS Flywheel | For 1971-1980 Small Block Chevy 400 | External Balance | 168 Tooth | Fits 2-Piece Rear Main Seal | Non-SFI | 14.125” Diameter 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 1971-1980 Small Block Chevy 400 owners with a 2-piece rear main seal. It’s externally balanced to OEM specs and has 168 teeth, making it a great fit for most street applications.

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Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts) 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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JEGS Flywheel | For 1986-1992 Small Block Chevy | External Balance | 168 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 14.125” Diameter 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 with a 1-piece rear main seal. It’s ideal for street applications, fitting 305, 350, and similar engines.

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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 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 fits 305 and 350 engines with a 1-piece rear main seal and is great for those doing an engine or transmission install. If you want a reliable and durable replacement that fits right the first time, this is the ideal choice.

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JEGS Flywheel | For 1986-1992 Small Block Chevy Engines | External Balance | 153 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 12.75” Diameter | For 10.4” Clutch JEGS Flywheel | For 1986-1992 Small Block Chevy Engines | External Balance | 153 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 12.75” Diameter | For 10.4” Clutch

This flywheel is perfect for car enthusiasts and DIY mechanics working on 1986-1992 small block Chevy engines. It’s ideal for those who want an easy fit with their 1-piece rear main seal engine and need a street-ready part that matches OEM specs.

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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 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 replacement that fits most applications and works with 10.5” or 11” clutches.

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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 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 Kit is perfect for Chevy 454 engine owners from 1970-1990 looking for a strong, stable, and durable upgrade. It ensures smoother engagement and reduced vibration for a better driving experience.

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153-Tooth Marine Flywheel | Fits 2.5L & 3.0L 4-Cylinder Engines (1990-1997) | 12.75 153-Tooth Marine Flywheel | Fits 2.5L & 3.0L 4-Cylinder Engines (1990-1997) | 12.75″ Diameter | External Balance | Steel | Manual Transmission | OE# 93422871

This 153-Tooth Marine Flywheel is perfect for boat owners with 2.5L or 3.0L 4-cylinder engines from 1990 to 1997. It’s ideal for manual transmission rebuilds or replacements, offering reliable performance and smooth power transfer.

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Flywheel New SBC External Balance Flywheel New SBC External Balance

This Flywheel New SBC External Balance is perfect for anyone who wants to keep their engine running smooth and strong. If you work on cars or love fixing your own ride, this part from Southwest Speed is made just for you. It’s easy to install and built to last, so you get reliable performance every time.

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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) 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 Mazda RX-8 owners who want to boost their car’s performance with a high-quality, reliable counterweight balance. If you have a 2004-2011 RX-8 with a 1.3L 13B-MSP engine and a 6-speed transmission, and you use an aftermarket flywheel, this is the smart upgrade that delivers smooth operation and trusted durability.

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Detailed Reviews

Discover the best external balanced flywheels chosen from expert reviews and real user feedback. Each product is tested for performance, durability, and value. This guide makes it easy to find the perfect fit for your engine. Dive in to see which flywheel will boost your ride with confidence.

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

JEGS Flywheel | For 1971-1980 Small Block Chevy 400 | External Balance | 168 Tooth | Fits 2-Piece Rear Main Seal | Non-SFI | 14.125” Diameter

The JEGS Flywheel fits perfectly on 1971-1980 Small Block Chevy 400 engines. It works with engines that have a 2-piece rear main seal. This makes it an ideal choice for your classic Chevy.

This flywheel has an external balance designed to match OEM 400 engine specs. It features 168 teeth that fit most setups. The 14.125” diameter ensures solid performance.

This product is non-SFI approved, making it great for street use. It’s built tough and ready to enhance your engine’s power.

Pros Cons
  • Fits perfectly on 1971-1980 Chevy 400 engines
  • External balance matches original engine specs
  • 168 teeth suit most applications easily
  • Strong and reliable 14.125” diameter design
  • Ideal for street use with non-SFI approval
  • Not SFI approved for racing.
  • Only for specific Chevy 400 engines.

Perfect For:

This JEGS Flywheel is perfect for 1971-1980 Small Block Chevy 400 owners with a 2-piece rear main seal. It’s externally balanced to OEM specs and has 168 teeth, making it a great fit for most street applications.

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2. Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

This Automatic Transmission Flexplate is designed for Chevy 383 and 400 engines. It has a 168-tooth ring gear for smooth performance.

It features a 2-piece rear main seal style. The engine balance is external. This flexplate replaces OEM part 343738.

The flexplate comes with high-performance bolts. It is built for automatic transmission use. It fits perfectly for Chevy 383 and 400 external balanced engines.

Pros Cons
  • Fits perfectly with Chevy 383 and 400 engines.
  • Strong 168-tooth ring gear ensures smooth transmission.
  • Includes high-performance bolts for secure assembly.
  • External balanced design for better engine harmony.
  • Direct OEM replacement, easy to install.
  • Not SFI certified, might limit racing use
  • Fits only external balance engines
  • Two-piece rear seal may require extra care

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?

3. JEGS Flywheel | For 1986-1992 Small Block Chevy | External Balance | 168 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 14.125” Diameter

JEGS Flywheel | For 1986-1992 Small Block Chevy | External Balance | 168 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 14.125” Diameter

Power up your classic Chevy with the JEGS Flywheel! This essential part is built for performance and durability.

It’s designed for 1986-1992 small block Chevys. This includes popular engines like the 305 and 350. The flywheel is externally balanced to match your engine’s needs. It features 168 teeth for broad compatibility. This flywheel has a 14.125-inch diameter. It is not SFI approved, so it’s perfect for street use only.

Pros Cons
  • Perfect fit for 1986-1992 Chevy engines.
  • Matches OEM specs for external balance.
  • 168 teeth for broad compatibility.
  • 14.125” diameter for easy installation.
  • Street-legal and non-SFI approved.
  • Not SFI approved; only for street use, no racing allowed
  • Fits only 1986-1992 small block Chevy engines
  • Designed for externally balanced engines only

Perfect For:

This JEGS Flywheel is perfect for car enthusiasts who own a 1986-1992 Small Block Chevy with a 1-piece rear main seal. It’s ideal for street applications, fitting 305, 350, and similar engines.

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

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 direct-fit replacement for 1986–1997 SBC engines. It’s designed for 305/350 applications with a 1-piece rear main seal. This flexplate ensures reliable performance for your engine or transmission install.

Its 168-tooth design matches OE requirements for external balance setups. The durable construction is built to last for street and performance builds.

This flexplate is recommended for new engine or transmission installs. It ensures proper engagement and operation for your SBC V8 setup.

Pros Cons
  • Perfect fit for your SBC engine.
  • Dependable 168-tooth design.
  • Built tough for long life.
  • Easy install with new engine/trans.
  • Matches OE style for your setup.
  • Not SFI certified for racing.
  • Best for street use, not extreme builds.

Perfect For:

This flexplate is perfect for car owners and mechanics working on 1986-1997 Small Block Chevy engines. It fits 305 and 350 engines with a 1-piece rear main seal and is great for those doing an engine or transmission install. If you want a reliable and durable replacement that fits right the first time, this is the ideal choice.

Ready to Purchase?

5. JEGS Flywheel | For 1986-1992 Small Block Chevy Engines | External Balance | 153 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 12.75” Diameter | For 10.4” Clutch

JEGS Flywheel | For 1986-1992 Small Block Chevy Engines | External Balance | 153 Tooth | Fits 1-Piece Rear Main Seal | Non-SFI | 12.75” Diameter | For 10.4” Clutch

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Pros Cons
  • Fits perfectly with 1986-1992 Small Block Chevy engines
  • Externally balanced for smooth engine performance
  • 153 teeth match most clutch setups
  • 12.75” diameter for reliable power transfer
  • Non-SFI approved, ideal for street use only
  • Not for racing: Non-SFI approved means it’s only for street use.
  • Limited clutch options: 153 teeth might not fit all custom clutch setups.

Perfect For:

This flywheel is perfect for car enthusiasts and DIY mechanics working on 1986-1992 small block Chevy engines. It’s ideal for those who want an easy fit with their 1-piece rear main seal engine and need a street-ready part that matches OEM specs.

Ready to Purchase?

6. 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

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 or Jeep 360 engine with the JEGS Flywheel. It fits models from 1972 to 1991 and replaces Jeep part number 3196929.

This flywheel is externally balanced to match OEM specs. It has 164 teeth and a 13.875” ring gear diameter. Use it with a 10.5” or 11” clutch. It fits a 4.625” crank flange and weighs 31 lbs.

Pros Cons
  • Perfect fit for 1972-1991 AMC/Jeep 360.
  • Engine balance just like original.
  • 164 teeth for wide compatibility.
  • Strong build for 10.5” or 11” clutches.
  • Limited fit: Only for 1972-1991 AMC/Jeep 360 engines
  • Weighty: Weighs 31 lbs, adding bulk to your setup
  • Clutch size: Only works with 10.5” or 11” clutches

Perfect For:

This JEGS Flywheel is perfect for Jeep and AMC owners with 1972-1991 360 engines. It’s ideal for those needing a replacement that fits most applications and works with 10.5” or 11” clutches.

Ready to Purchase?

7. 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

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 1845400 external balance flexplate is compatible with 1970-1990 Big Block Chevy 454 engines, including models like Corvette, Caprice, Suburban, and Silverado. It fits perfectly with OEM specifications. All necessary hardware is included for easy installation.

The flywheel is made of premium chromoly steel, making it stronger and more fatigue-resistant. It reduces flexing and provides smoother engagement between the torque converter and the transmission. The reinforced plate design enhances durability.

The flexplate is dynamically balanced for smooth operation at any RPM. It also features a corrosion-resistant surface treatment to improve longevity.

Pros Cons
  • Perfect fit for 1970-1990 Big Block Chevy 454 engines.
  • Stronger chromoly steel ensures durability and smooth engagement.
  • Dynamically balanced for stable, vibration-free performance.
  • Corrosion-resistant with reinforced welding for longevity.
  • 24-month warranty guarantees peace of mind.
  • May not fit some specific engine models.
  • Requires professional installation for best results.

Perfect For:

This HQPASFY 1845400 Flexplate Kit is perfect for Chevy 454 engine owners from 1970-1990 looking for a strong, stable, and durable upgrade. It ensures smoother engagement and reduced vibration for a better driving experience.

Ready to Purchase?

8. 153-Tooth Marine Flywheel | Fits 2.5L & 3.0L 4-Cylinder Engines (1990-1997) | 12.75″ Diameter | External Balance | Steel | Manual Transmission | OE# 93422871

153-Tooth Marine Flywheel | Fits 2.5L & 3.0L 4-Cylinder Engines (1990-1997) | 12.75

Revitalize your marine engine with this high-quality 153-tooth flywheel. It’s a direct replacement for 1990-1997 2.5L and 3.0L 4-cylinder engines, ensuring a perfect fit and easy installation.

This durable steel flywheel features a hardened ring gear for reliable performance. Enjoy smooth clutch operation and optimal power transfer. It’s built to last.

Pros Cons
  • Fits perfectly with 2.5L & 3.0L marine engines (1990-1997).
  • Made from strong steel for long-lasting use.
  • Smooth clutch action thanks to precision-machined surface.
  • Built for manual transmissions to ensure reliable power.
  • Comes with a 1-year warranty for peace of mind.
  • Not for automatic transmissions, only manual applications.
  • Steel construction adds weight to the engine setup.
  • Specific fit limits use to 1990-1997 marine engines.

Perfect For:

This 153-Tooth Marine Flywheel is perfect for boat owners with 2.5L or 3.0L 4-cylinder engines from 1990 to 1997. It’s ideal for manual transmission rebuilds or replacements, offering reliable performance and smooth power transfer.

Ready to Purchase?

9. Flywheel New SBC External Balance

Flywheel New SBC External Balance

Get ready to boost your vehicle’s performance with the Flywheel New SBC External Balance from Southwest Speed. This high-quality automotive part is designed to enhance your driving experience.

It’s built for durability. Installation is straightforward. This flywheel offers excellent value.

Pros Cons
  • Boosts engine performance with precision external balance design.
  • Durable build ensures long-lasting reliability for your vehicle.
  • Easy installation saves time and effort in upgrades.
  • Compact size fits seamlessly into tight engine spaces.
  • Limited compatibility: Only fits specific SBC engines.
  • No color options: Comes in a single standard finish.
  • Basic packaging: Minimal protection during shipping.

Perfect For:

This Flywheel New SBC External Balance is perfect for anyone who wants to keep their engine running smooth and strong. If you work on cars or love fixing your own ride, this part from Southwest Speed is made just for you. It’s easy to install and built to last, so you get reliable performance every time.

Ready to Purchase?

10. ClutchMaxPRO Flywheel External Counter Weight Balance Compatible with 2004-2011 Mazda RX-8 1.3L 13B-MSP 6-speed (CPCW-03)

ClutchMaxPRO Flywheel External Counter Weight Balance Compatible with 2004-2011 Mazda RX-8 1.3L 13B-MSP 6-speed (CPCW-03)

Experience top-tier performance with the ClutchMaxPRO Flywheel External Counter Weight Balance, designed specifically for the 2004-2011 Mazda RX-8 1.3L 13B-MSP 6-speed. This premium part is made from billet steel and crafted in the U.S.A. to ensure precision and durability. It’s built to meet or exceed SFI certification, giving you smooth operation at every RPM.

This product is balanced to perfection within 0.25 oz inch. It includes six mounting bolts for easy installation. Must be used with an aftermarket flywheel, not the factory OEM. ClutchMaxPRO offers industry-leading customer support. Plus, it comes with a 12-month or 15,000-mile limited warranty.

Upgrade your RX-8 with confidence. Feel the difference in every shift. Trust ClutchMaxPRO for quality and performance that lasts.

Pros Cons
  • Premium quality made and tested in the USA for total trust.
  • Perfectly balanced for smooth operation at all RPMs.
  • Fits 2004-2011 Mazda RX-8 with 6-speed 1.3L engine.
  • Includes mounting bolts for easy, hassle-free installation.
  • Backed by warranty and top-notch customer support.
  • Requires an aftermarket flywheel.
  • Not compatible with factory OEM flywheel.

Perfect For:

This product is perfect for Mazda RX-8 owners who want to boost their car’s performance with a high-quality, reliable counterweight balance. If you have a 2004-2011 RX-8 with a 1.3L 13B-MSP engine and a 6-speed transmission, and you use an aftermarket flywheel, this is the smart upgrade that delivers smooth operation and trusted durability.

Ready to Purchase?

Buying Guide

Discover the best external balanced flywheels to boost your engine’s performance. These flywheels are built for durability, smooth operation, and easy installation. They are perfect for classic and modern engines, ensuring a reliable driving experience.

Factors to Consider When Buying an External Balanced Flywheel:

  • Engine Compatibility: Ensure the flywheel matches your engine type, such as Chevy 400, 383, or 454. Check if it fits a 1-piece or 2-piece rear main seal for proper installation.

  • Tooth Count: Flywheels come with different tooth counts, like 168 teeth or 153 teeth. Choose the correct count to ensure compatibility with your starter and transmission.

  • Material and Durability: Look for flywheels made from chromoly steel or billet steel. These materials are strong, resist flexing, and last longer under high stress.

  • Balance Type: External balanced flywheels are designed for specific engines. Ensure the flywheel matches your engine’s OEM balance specifications for smooth operation.

  • Diameter and Clutch Size: Check the flywheel’s diameter (e.g., 14.125”) and clutch compatibility (e.g., 10.4” clutch) to fit your setup perfectly.

  • SFI Certification: If you need a flywheel for racing, ensure it is SFI approved. For street use, non-SFI flywheels are sufficient.

  • Additional Features: Some flywheels include bolts or reinforced plates for easier installation and enhanced durability. Look for corrosion-resistant finishes for longer life.

Choose the right flywheel to enhance your engine’s power and reliability. With the perfect match, you’ll enjoy smoother performance and a better driving experience.