Click to enlargeGM LS1 - LS2 - LS6 
Harmonic Damper

Professional Products 80033 Powerforce harmonic damper balancer.

Fits 1997-2007 Chevrolet Corvette LS1 LS2 LS6 engines.

Ideal for street high performance and stock replacement applications.

Measures 7.5" in diameter.

Weighs 11.2 pounds.

Dimensionally identical to the stock O.E. damper.

Made of nodular iron, which is stronger than the GM malleable iron damper.

Elastomer construction between the hub and the ring which is bonded for extra strength.

Sixty degrees of timing marks etched in white for easy reading.

Painted semi-gloss black with white timing marks.

Although not required on the stock engines, this damper has a keyway ( As does the crankshaft.) and it is highly recommended that the key be used for high performance applications.


Professional Products 80033 90033 PowerForce harmonic damper 1997-2007 Chevrolet Corvette LS1 LS2 LS6 harmonic damper LS1 LS2 LS6 harmonic balancer PROFESSIONAL-PRODUCTS-80033$119.97

Click to enlargeVette LS1 LS2 LS6 harmonic damper SFI spec
Professional Products 90033 Power Plus harmonic damper balancer.

Fits 1997-2007 Chevrolet Corvette LS1 LS2 LS6 engines.

A racing SFI-Spec damper. Also works well for for street high performance applications.

Measures 7.5" in diameter.

Weighs 13.2 pounds.

Dimensionally identical to the stock O.E. damper.



Made of 1045 steel and much stronger than the GM alleable iron damper.

Number 8-32 stainless steel machine screws are used.

High temperature elastomer construction between the hub and the ring which is bonded for extra strength.

Sixty degrees of timing marks etched in white for easy reading.

Painted semi-gloss black with white timing marks.

Although not required on the stock engines, this damper has a keyway ( As does the crankshaft.) and it is highly recommended that the key be used for high performance applications.

PROFESSIONAL-PRODUCTS-90033$219.97

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