PRW Industries Pro Series Billet Steel Flywheel 1634680, 168-Tooth, SFI 1.1 for GM LS-Series

Upgrade your GM LS-series drivetrain with the PRW Industries Pro Series Billet Steel Flywheel, part number 1634680. Designed for performance applications, this flywheel features a 168-tooth ring gear and a durable steel construction engineered to provide dependable clutch engagement and consistent power transfer. Its SFI 1.1 certification makes it a suitable choice for many high-performance street, drag racing, and competition-oriented builds.
The PRW Pro Series flywheel is internally balanced for compatibility with properly balanced LS engines, helping support smooth operation throughout the RPM range. It is designed for GM 5.7L LS1 and LS6 applications and uses a 1-piece rear main seal configuration. The flywheel weighs approximately 25.45 pounds, offering a practical balance between rotational mass, throttle response, and drivability for performance-focused installations.
This flywheel is manufactured for use with compatible GM LS-series clutch and starter components. Verify engine balance, rear main seal configuration, transmission compatibility, clutch fitment, and ring gear requirements before installation. Professional installation and proper fastener torque procedures are recommended to help ensure reliable service. The PRW Industries Pro Series Billet Steel Flywheel 1634680 is supplied as an individual component and is not restricted for air shipment or truck freight service.

Features:

• Brand: PRW Industries Pro Series

• Part Number: 1634680

• Application: GM LS-series engines, including 5.7L LS1 and LS6

• Construction: Billet steel

• Ring Gear: 168-tooth design

• Certification: SFI 1.1

• Balance: Internally balanced

• Rear Main Seal Compatibility: 1-piece seal

• Weight: Approximately 25.45 pounds

• Quantity: Sold individually