Pontiac Harmonic Damper

Professional Products 80020 90020 PowerForce harmonic damper balancer.

Fits 1961-1979 Pontiac V8 engines.

This damper is dimensionally the same as the 1969-1979 O.E.M. stock damper.

Measures 6.9" in diameter.

Weight of 8.2 pounds.

This damper can use the stock pulleys.

Made of nodular iron which is much stronger than the G.M. malleable iron.

Painted semi-gloss black with white timing marks etched in.

Sixty degrees of timing marks with additional marks every 90 degrees.

Accurate crank bore for proper press fit on the crankshaft.

Damper has less than .005" runout.

Great for street high performance cars or even stock replacement applications.

IMPORTANT TECH NOTE: To use this damper on the 1961-1968 engines, the use of a 1969 or later timing chain cover, water pump and related accessories are required.

A racing SFI-Spec damper can be found below.


Professional Products 80020 90020 PowerForce harmonic damper Pontiac V8 harmonic damper balancer 80020$99.97

Click to enlargeProfessional Products 90020 PowerForce Plus
Professional Products 90020 PowerForce Plus harmonic damper.

This damper is an SFI-Spec racing damper.

Also works great for extreme street performance.

Measures 6.9" in diameter.

Weight of 10.00 pounds.

Features 1045 steel construction.

Painted semi-gloss black with white timing marks etched in.

A red anodized ring.

Number 8-32 stainless steel machine screws are used.

High temperature elastomer for heavy duty racing.

Sixty degrees of timing marks with additional marks every 90 degrees.

Accurate cranks bore for proper press fit on the crankshaft.

Damper has less than .005 runout.

Allows the use of the stock pulleys.

Fits 1961-1979 Pontiac V8 engines.

IMPORTANT TECH NOTE: To use on the 1961-1968 engines, the use of a 1969-1979 timing chain cover, water pump and related accessories are required.

90020$199.97

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