Fluidampr 740111 Harmonic Balancer LS1/LS2/LS6 Camaro, Firebird, GTO

The Fluidampr 740111 is the premium American Made Viscous harmonic balancer upgrade for LS‑based F‑body and GTO platforms. The Stock elastomer dampers degrade over time and struggle to control torsional vibration—especially once you add performance modifications. Fluidampr is the only company that uses a viscous silicone design to eliminate this weakness by providing consistent, real‑time damping across the entire RPM range.

Inside the damper, a free‑floating inertia ring moves through high‑grade silicone to absorb and neutralize vibration. This protects the crankshaft, main bearings, timing set, and valve-train from long‑term fatigue. Whether your LS build is stock, cammed, boosted, or track‑driven, the 740111 delivers smoother operation, improved reliability, and measurable performance gains.

Built from precision CNC‑machined steel with a black zinc finish, this damper is engineered for durability and long service life. It requires no tuning, no rebuilding, and no maintenance. With SFI 18.1 certification, it’s approved for drag racing, road racing, and high‑RPM applications.

If you want the best protection for your LS engine, Fluidampr is the industry standard trusted by top engine builders worldwide.

Protect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved markings. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.

If you want the best protection for your LS engine, Fluidampr is the industry standard trusted by top engine builders worldwide.

This Viscous Harmonic Damper Fits these LS‑based F‑body and GTO platforms.:

• By KLM Performance

Brand: Fleetguard Atmus | Part Number: AF27684 | Media Type: Synthetic | Overall Height: 11.2 in | Outer Diameter: 6.8 in | Application: Dodge Ram 6.7L Cummins 2007.5-2026.