PRW Harmonic Damper SFI 18.1 Steel FluidGel — Fits 1998-2006 GM LS1 Engines

SKU: FMJX_2534601
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About PRW

PRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Vibration Control for GM LS1 Engines

Ensure your engine's longevity and performance with the PRW SFI 18.1 Harmonic Damper. Engineered specifically for GM LS-Series engines from 1998 to 2006, this high-quality steel damper is designed to neutralize harmful crankshaft vibrations that can lead to catastrophic engine failure. Utilizing advanced FluidGel technology, this unit provides superior damping across the entire RPM range compared to standard rubber-bonded balancers.

Key Features and Benefits

  • SFI 18.1 Certified: Built to meet rigorous safety standards for racing and high-performance street applications.
  • FluidGel Technology: Superior harmonic absorption for smoother engine operation and reduced wear on main bearings.
  • Durable Steel Construction: Finished with a resilient black paint coating to prevent corrosion in harsh under-hood environments.
  • Internal Balance: Precision-engineered for a direct fit on GM LS1 platforms.
  • Underdrive Capability: Optimized for performance gains by reducing parasitic drag on the engine.

Whether you are building a street machine or a dedicated track car, managing harmonic resonance is critical for protecting your investment. This balancer offers the perfect balance of durability, safety, and performance efficiency. Trust your engine build to the experts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About PRW

PRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Vibration Control for GM LS1 Engines

Ensure your engine's longevity and performance with the PRW SFI 18.1 Harmonic Damper. Engineered specifically for GM LS-Series engines from 1998 to 2006, this high-quality steel damper is designed to neutralize harmful crankshaft vibrations that can lead to catastrophic engine failure. Utilizing advanced FluidGel technology, this unit provides superior damping across the entire RPM range compared to standard rubber-bonded balancers.

Key Features and Benefits

  • SFI 18.1 Certified: Built to meet rigorous safety standards for racing and high-performance street applications.
  • FluidGel Technology: Superior harmonic absorption for smoother engine operation and reduced wear on main bearings.
  • Durable Steel Construction: Finished with a resilient black paint coating to prevent corrosion in harsh under-hood environments.
  • Internal Balance: Precision-engineered for a direct fit on GM LS1 platforms.
  • Underdrive Capability: Optimized for performance gains by reducing parasitic drag on the engine.

Whether you are building a street machine or a dedicated track car, managing harmonic resonance is critical for protecting your investment. This balancer offers the perfect balance of durability, safety, and performance efficiency. Trust your engine build to the experts at GGCRACING.

Product Details

Product Description

About PRW

PRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Vibration Control for GM LS1 Engines

Ensure your engine's longevity and performance with the PRW SFI 18.1 Harmonic Damper. Engineered specifically for GM LS-Series engines from 1998 to 2006, this high-quality steel damper is designed to neutralize harmful crankshaft vibrations that can lead to catastrophic engine failure. Utilizing advanced FluidGel technology, this unit provides superior damping across the entire RPM range compared to standard rubber-bonded balancers.

Key Features and Benefits

  • SFI 18.1 Certified: Built to meet rigorous safety standards for racing and high-performance street applications.
  • FluidGel Technology: Superior harmonic absorption for smoother engine operation and reduced wear on main bearings.
  • Durable Steel Construction: Finished with a resilient black paint coating to prevent corrosion in harsh under-hood environments.
  • Internal Balance: Precision-engineered for a direct fit on GM LS1 platforms.
  • Underdrive Capability: Optimized for performance gains by reducing parasitic drag on the engine.

Whether you are building a street machine or a dedicated track car, managing harmonic resonance is critical for protecting your investment. This balancer offers the perfect balance of durability, safety, and performance efficiency. Trust your engine build to the experts at GGCRACING.

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