Pontiac 6-5/8 Harmonic Damper - SFI

The Pontiac 6-5/8 Harmonic Damper - SFI from FLUIDAMPR is a precision-engineered vibration control component designed for serious engine builders and Pontiac enthusiasts who demand reliability in high-performance applications. This damper addresses a critical need in modern and classic Pontiac powerplants: controlling harmonic vibrations that can lead to premature crankshaft failure, bearing wear, and timing chain degradation.

FLUIDAMPR's design utilizes a proven elastomer isolation system housed within a precision-cast iron shell with a 6-5/8-inch diameter that maintains compatibility with Pontiac crankshaft specifications. Unlike older-style rubber-ring dampers that degrade over time, this unit employs fluid displacement technology to absorb and dissipate destructive vibration frequencies effectively.

Pontiac owners—from street cruisers to full-race competitors—benefit most from this damper, which is SFI certified for safety and performance. It is suitable for various Pontiac V8 engine configurations, making it an excellent choice for both stock and modified builds.