GM LS3/L99 7-3/4 Damper - SFI

The FLUIDAMPR GM LS3/L99 7-3/4 Damper with SFI certification is a precision harmonic balancer designed for high-performance LS engines. It is suitable for various applications, including street machines, weekend track cars, and forced-induction platforms. This damper helps manage crankshaft harmonics, which can lead to premature wear on stock balancers and affect engine longevity.

Engineered specifically for the LS3 and L99 platforms, the damper addresses the resonance frequencies that arise when power levels exceed OEM specifications. Utilizing a fluid-coupling design, it effectively absorbs torsional vibrations across the entire RPM range, providing consistent performance without the drawbacks of elastomer-based units. The 7-3/4-inch diameter is optimized for compact LS applications while ensuring adequate inertia mass for harmonic control.

This damper is beneficial for any LS3 or L99 engine, whether it is making 450 horsepower or less, and is particularly advantageous for those featuring variable valve timing, aggressive ignition timing, or forced induction. With SFI 18.1 certification, it meets the standards required for competitive racing, making it a reliable choice for enthusiasts and racers alike.