Looking for the best Chevy 383 flexplates to upgrade your engine? We’ve curated a list of 10 top-performing options that ensure smooth power transfer and long-lasting durability for your Chevy 383.
Chevy 383 engines need the right flexplate for top performance. A good flexplate ensures smooth power transfer and long-lasting durability. We’ve found the best options to upgrade your engine.
These flexplates are built tough and easy to install. They’re designed to handle high power and harsh conditions, giving you confidence on the road.
List of Top 10 Chevy 383 Flexplates
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Speedmaster PCE226.1003 Compatible with Chevy SBC 383 400 2Pc Rms 168 Tooth 11″ External Balance Heavy Duty Flexplate |
This Speedmaster PCE226.1003 Flexplate is perfect for car enthusiasts who want reliable performance. It’s ideal for Chevy SBC 383 and 400 engines, offering durability and smooth operation. |
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Allstar Performance Flexplate, 168 Tooth, SFI 29.1, Steel, Internal Balance, 2-Piece Seal, compatible with Chevy V8, Each |
This Allstar Performance Flexplate is perfect for Chevy V8 owners who need a reliable, high-quality replacement. It’s easy to install and built to last, making it ideal for anyone looking to upgrade their vehicle’s performance. |
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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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PRW 1840000 SFI-Rated External Balance 168 Teeth Chromoly Steel Flexplate for Chevy 400/383 1970-80 Early |
This flexplate is perfect for serious racers and high-performance Chevy engine builders. It’s built for extreme durability with SFI certification, double-welded gears, and a thicker design to handle high-RPM stress. |
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PRW 1835001 SFI-Rated Internal Balance 168 Teeth Chromoly Steel Flexplate for Chevy 1957-85, 90 Early, V6, Gold Irridate |
This flexplate is perfect for Chevy V6 owners who want a strong, race-ready upgrade. It’s built for high-stress engines with SFI 29.1 certification, double-welded gears, and extra-thick steel to handle power and last longer. |
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Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth – Perfect for Engine/Transmission Installations – Small Block Chevy – Non SFI Rated |
This flexplate is perfect for car enthusiasts and mechanics working on Small Block Chevy engines. It’s ideal for engine or transmission installations, offering smooth operation and easy fitment. |
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PRW 1835002 SFI-Rated Internal Balance 153 Teeth Chromoly Steel Flexplate for Chevy SB 1957-85, 90 Early, V6 |
This PRW flexplate is perfect for racers and high-performance enthusiasts who need a reliable and durable part for their Chevy SB engine. It’s built tough to handle high RPMs and engine stress, making it ideal for racing or heavy-duty use. |
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ERSGRP Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414 |
This ERSGRP Automatic Transmission Flexplate is perfect for car owners who need a reliable replacement part. It fits specific models of Buick, Cadillac, Chevy, and GMC vehicles, ensuring consistent performance and quality control. |
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SFI Small Block for Chevy 383/400 External Balance Flexplate 168 Tooth Bolts |
This SFI Small Block flexplate is perfect for Chevy 383/400 engine builders or upgraders seeking high-performance efficiency with external balance design and 168-tooth precision. Includes bolts for easy installation—verify compatibility via model number or contact support for fit assurance. |
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168 Tooth SFI Rated Steel Flexplate, Fits Chevy big block |
This 168 Tooth SFI Rated Steel Flexplate is perfect for Chevy big block owners who want reliable performance. It’s built tough for high horsepower engines and extreme duty use. |
Detailed Reviews
Looking for the best Chevy 383 flexplate? We’ve ranked top picks using expert tests and real-world feedback. Each product is reviewed for durability, fit, and performance to match your engine’s needs. Trust our guide to cut through the noise and find your ideal match fast. Ready to upgrade with confidence? Dive in to discover the perfect flexplate for your build.
1. Speedmaster PCE226.1003 Compatible with Chevy SBC 383 400 2Pc Rms 168 Tooth 11″ External Balance Heavy Duty Flexplate

The Speedmaster PCE226.1003 Flexplate fits Chevy SBC 383 and 400 engines. It’s built for external balance and durability with a 168-tooth design.
TRACK PROVEN strength survives harsh conditions. The heavy-duty build handles power and stress. A 12-month warranty backs its reliability.
Speedmaster’s design blends old and new tech. It ensures smooth power transfer to your drivetrain. Easy install and trustworthy performance for all drivers.
| Pros | Cons |
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Perfect For:
This Speedmaster PCE226.1003 Flexplate is perfect for car enthusiasts who want reliable performance. It’s ideal for Chevy SBC 383 and 400 engines, offering durability and smooth operation.
Ready to Purchase?
2. Allstar Performance Flexplate, 168 Tooth, SFI 29.1, Steel, Internal Balance, 2-Piece Seal, compatible with Chevy V8, Each

The Allstar Performance Flexplate works with Chevy V8 engines. It has 168 teeth and meets SFI 29.1 safety standards.
This flexplate uses steel construction for internal balance and a 2-piece seal design. It fits specific vehicles and weighs 6.8 pounds. The package measures 35.3 x 37.6 x 2.8 cm.
| Pros | Cons |
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Perfect For:
This Allstar Performance Flexplate is perfect for Chevy V8 owners who need a reliable, high-quality replacement. It’s easy to install and built to last, making it ideal for anyone looking to upgrade their vehicle’s performance.
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 is externally balanced for smooth operation.
The flexplate comes with high-performance bolts and has a 2-piece rear main seal style. It’s designed to replace OEM part 343738, making it a reliable upgrade for your vehicle.
Easy to install, durable, and high-quality. This flexplate is a great choice for your engine. Get yours today!
| 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?
4. PRW 1840000 SFI-Rated External Balance 168 Teeth Chromoly Steel Flexplate for Chevy 400/383 1970-80 Early

The PRW 1840000 Flexplate is a high-performance upgrade for your Chevy engine. It’s SFI 29.1 certified, ensuring top safety and quality.
This flexplate is 0.035 inch thicker than stock, designed for racing, and built to last. It handles high RPM and stress with ease.
With double-welded ring gears, it’s stronger than OEM parts. Perfect for high stall converters and powerful engines.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for serious racers and high-performance Chevy engine builders. It’s built for extreme durability with SFI certification, double-welded gears, and a thicker design to handle high-RPM stress.
Ready to Purchase?
5. PRW 1835001 SFI-Rated Internal Balance 168 Teeth Chromoly Steel Flexplate for Chevy 1957-85, 90 Early, V6, Gold Irridate

This PRW 1835001 flexplate fits Chevy V6 engines from 1957-85 and some 1990 models. It’s SFI 29.1 certified, built for racing reliability and heavy-duty use.
The flexplate is 0.035 inch thicker than stock for added strength. Its double-welded ring gears handle high RPM and torque from high stall converters. Designed to exceed OEM specs, it resists stress and lasts longer.
Gold irridate finish fights corrosion. Works with Chevy V6 engines and older models. A durable upgrade for engines pushing power and performance.
| Pros | Cons |
|---|---|
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Perfect For:
This flexplate is perfect for Chevy V6 owners who want a strong, race-ready upgrade. It’s built for high-stress engines with SFI 29.1 certification, double-welded gears, and extra-thick steel to handle power and last longer.
Ready to Purchase?
6. Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth – Perfect for Engine/Transmission Installations – Small Block Chevy – Non SFI Rated

Speedway Motors 1955-1985 Chevy Flexplate fits Small Block Chevy engines with a two-piece rear main seal. It has 168 teeth for smooth transmission performance. The flexplate works for engine or transmission swaps, offering easy installation.
Dual bolt patterns (10-3/4″ and 11-1/2″) ensure compatibility. Its 14.09″ diameter and 2-1/2″ center hole provide precise fitment. This flexplate is non-SFI rated but built for reliable use.
| Pros | Cons |
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Perfect For:
This flexplate is perfect for car enthusiasts and mechanics working on Small Block Chevy engines. It’s ideal for engine or transmission installations, offering smooth operation and easy fitment.
Ready to Purchase?
7. PRW 1835002 SFI-Rated Internal Balance 153 Teeth Chromoly Steel Flexplate for Chevy SB 1957-85, 90 Early, V6

The PRW 1835002 Flexplate is SFI 29.1 certified, making it safe and reliable for high-performance use. It’s 0.035 inches thicker than stock flexplates, adding extra strength.
This flexplate is designed for racing and built to handle tough conditions. It’s made to exceed OEM specs, ensuring top performance and durability.
Double-welded ring gears handle high RPM and stress. Perfect for engines with high stall converters. Built with chromoly steel for strength.
| Pros | Cons |
|---|---|
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Perfect For:
This PRW flexplate is perfect for racers and high-performance enthusiasts who need a reliable and durable part for their Chevy SB engine. It’s built tough to handle high RPMs and engine stress, making it ideal for racing or heavy-duty use.
Ready to Purchase?
8. ERSGRP Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

This ERSGRP Automatic Transmission Flexplate replaces worn parts in Olds, GMC, Chevy, Cadillac, and Buick vehicles. It ensures smooth power transfer from engine to transmission.
Fits Buick Roadmaster (1992-1993), Cadillac Brougham (1990-1992), Escalade (1999-2000), and Chevy Astro (1992-1998). Check your vehicle specs to confirm compatibility. Designed for easy installation with standard tools.
Matches Part Numbers 10128414, 14088761, FRA-159. Sold as a 1-piece set for single replacement needs. Built Standard ensures durability and meets industry quality benchmarks.
| Pros | Cons |
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Perfect For:
This ERSGRP Automatic Transmission Flexplate is perfect for car owners who need a reliable replacement part. It fits specific models of Buick, Cadillac, Chevy, and GMC vehicles, ensuring consistent performance and quality control.
Ready to Purchase?
9. SFI Small Block for Chevy 383/400 External Balance Flexplate 168 Tooth Bolts

Upgrade your engine with the SFI Small Block Flexplate for Chevy 383/400. This external balance flexplate comes with 168 tooth bolts for a perfect fit. It’s built for high performance and maximum efficiency.
This product is engineered for exceptional results without sacrificing quality. It’s a versatile replacement suitable for various applications.
Check compatibility using Ctrl + F to search your model number. If unsure, contact us for advice within 24 hours.
| Pros | Cons |
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Perfect For:
This SFI Small Block flexplate is perfect for Chevy 383/400 engine builders or upgraders seeking high-performance efficiency with external balance design and 168-tooth precision. Includes bolts for easy installation—verify compatibility via model number or contact support for fit assurance.
Ready to Purchase?
10. 168 Tooth SFI Rated Steel Flexplate, Fits Chevy big block

Unleash your engine’s power with the 168 Tooth SFI Rated Steel Flexplate. Built tough for Chevy big blocks, it handles extreme duty and high horsepower. Engineered for excellence, this flexplate is a reliable choice.
The 4mm centerplate provides a strong base, ensuring durability. Precision welding meets SFI specs, thanks to advanced robotic technology.
Rigorously inspected, this flexplate is SFI 29.1 certified. Trust in its quality for your high-performance engine’s needs.
| Pros | Cons |
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Perfect For:
This 168 Tooth SFI Rated Steel Flexplate is perfect for Chevy big block owners who want reliable performance. It’s built tough for high horsepower engines and extreme duty use.
Ready to Purchase?
Buying Guide
Chevy 383 engines need the right flexplate for top performance. A good flexplate ensures smooth power transfer and long-lasting durability.
Choosing the best flexplate for your Chevy 383 can be exciting. You’ll feel confident knowing your engine is upgraded for better performance. Here’s what to consider:
- Compatibility: Make sure the flexplate fits your Chevy 383 engine and transmission type. Check the tooth count and balance type (internal or external).
- Material: Look for steel or chromoly steel for strength and durability. These materials handle high power and stress well.
- SFI Certification: If you’re racing or pushing high performance, choose an SFI 29.1 certified flexplate for safety and reliability.
- Tooth Count: Most Chevy 383 flexplates have 168 teeth. Ensure it matches your starter and flywheel for smooth operation.
- Balance Type: Decide between internal or external balance based on your engine’s setup. This affects smoothness and performance.
- Thickness: A thicker flexplate (like 0.035 inches) adds strength and handles high RPM better.
- Warranty: A warranty gives you peace of mind. Look for options with at least a 12-month warranty.
- Ease of Installation: Choose a flexplate that’s easy to install with standard tools. This saves time and hassle.