1. Flywheels + Flexplates For Sale
  2. sku: 14305301962834983
  3. SPEEDWAY 91034657

SPEEDWAY MOTORS 91034657 Sfi Flexplate 168

fits model: Ls1.

91034657 Speedway Motors 168 Tooth Ls1 Sfi Flexplate

( Brand: Speedway Motors ), ( Manufacturer Part Number: 91034657 ), ( Type: Flexplates ), ( Material: Steel ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS 168 Tooth Sfi Flexplate fits LS1

The Speedway 91034657 168 LS1 SFI Flexplate is a crucial component in the powertrain system of specific Chevrolet LS1 engines. This flexplate is designed to provide a robust connection between the engine crankshaft and the flywheel or clutch assembly.

The 168 LS1 SFI Flexplate, manufactured by Speedway Motors, is made from high-strength steel material, ensuring durability and reliability. It is specifically engineered to meet the Society of Automotive Engineers (SAE) Standard J1461 and the SFI Foundation Specification 191-1, ensuring optimal safety and performance.

The 168 mm diameter of this flexplate is suitable for certain LS1 engines, including those found in popular muscle cars and performance vehicles. The SFI certification ensures that it can withstand the high torque loads and horsepower output associated with high-performance applications.

The surface of the Speedway 91034657 168 LS1 SFI Flexplate is machined to precise tolerances and has a chamfered edge for easy installation. The plate features multiple bolt holes to accommodate various clutch designs and bolting patterns. The holes are drilled using a precision boring process to ensure a perfect fit and even clamping pressure.

Additionally, the flexplate's hub is designed with a keyway and splines to engage with the engine crankshaft. The keyway is precisely machined to ensure proper alignment and engagement with the crankshaft, ensuring smooth power transfer from the engine to the transmission.

In summary, the Speedway 91034657 168 LS1 SFI Flexplate is a critical performance component that delivers strength, reliability, and safety for specific LS1 engines. Its SFI certification and high-strength steel construction make it an ideal choice for high-performance applications, ensuring optimal power transfer and longevity.

The Speedway 91034657 168 LS1 SFI Flexplate is a performance part designed for use with high-performance applications of the GM LS1 engine. This flexplate is Serpentine Flexplate Interface (SFI) certified, which is a requirement for some racing applications. Here are some potential pros and cons of purchasing this part:

Pros:

1. SFI Certification: The SFI certification ensures that the flexplate meets specific safety standards for high-performance applications.

2. Improved Clutch Engagement: The 168-tooth design of the flexplate provides better clutch engagement and improved power transfer.

3. Durability: The flexplate is made from high-strength steel, which makes it more durable than the stock flexplate.

4. Reduced Engine Damage: The stronger design of the flexplate can help reduce engine damage by absorbing the torque loads more effectively.

Cons:

1. Cost: The Speedway 91034657 168 LS1 SFI Flexplate is more expensive than the stock flexplate.

2. Installation Complexity: Installing the SFI flexplate may require additional modifications to the engine and cooling system.

3. Potential for Noise: Some customers have reported increased engine noise after installing the flexplate.

In conclusion, the Speedway 91034657 168 LS1 SFI Flexplate is a high-performance part that offers improved clutch engagement, durability, and safety. However, it comes with a higher cost, increased installation complexity, and potential for increased engine noise. If you are building a high-performance LS1 engine for racing or other demanding applications, the benefits of this flexplate may outweigh the cons. Alternatively, if you are working on a budget build or a daily driver, the stock flexplate may be a more suitable option. Ultimately, the decision to purchase the Speedway 91034657 168 LS1 SFI Flexplate depends on your specific needs, budget, and performance goals.

Details:

Internally Balanced Fitment Engineered with internal balance to match factory LS1 rotating assemblies for smooth, proper operation. Durable Steel Build Strong steel construction ensures long-lasting performance for both street driving and competition environments. LS1-Specific Compatibility Direct-fit for 1997 2001 GM LS1 engines with 6-bolt crank and 2.080 bore, including Camry, Corvette, Fire bird model's. SFI-Rated Construction SFI 29.1 certified flexplate delivers track-approved reliability and added peace of mind for performance-oriented LS1 applications.

Material: STEEL. Engine Balance: Internal. 168-Tooth Design Provides consistent starter engagement and dependable cranking for GM LS1 engines using a 168-tooth setup. Sold individually.

Headquarters. Sold as Each. And comes in a natural finish.

specifications flwheflepla:

  • for models: Ls1
  • brand: Speedway Motors
  • mpn: 91034657
  • type: Flexplates
  • material: Steel
  • california prop 65 warning: True

offer flwheflepla:

  • options: Ship-to-home
  • quantity: 3
  • started: December 31, 2025
  • sold: 0
  • availability: In Stock

shipping flwheflepla:

  • class: Economy, Expedited
  • type: Fixed
  • service: Economy, Expedited
  • cost: $13.99
  • transit: 6-6 Days

returns flwheflepla:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

general flwheflepla:

  • Car Truck Parts Accessories > Transmission Drivetrain > Flywheels Flexplates
  • condition: New

seller flwheflepla:

  • # reviews: 343516
  • rating: 99.6%
  • city: Lincoln, Nebraska

payments flwheflepla:

  • wallet: Paypal
  • credit card: Discover
  • other
for models: ls1, type: flexplates, california prop 65 warning: true,
category: auto parts > car truck parts accessories > transmission drivetrain > flywheels flexplates, material: steel, sku: 14305301962834983,
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