Oldsmobile Harmonic Damper

Professional Products 80022 PowerForce harmonic damper.

Fits Oldsmobile 330 350 400 403 425 455 engines.

Measures 6.5" in diameter.

Weights in at 9.5 pounds.

Made of nodular iron which is much stronger than the GM malleable iron dampers.

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

Painted in a semi-gloss black with white timing etchings.

Externally balanced damper with a bolt in counterweight which can be removed for a neutral balanced roating assembly if desired.

Stock Oldsmobile pulley bolt pattern as well as a Chevrolet big block bolt pattern for those who may want to run a crank trigger system.

TECH NOTE: Use of Chevrolet pulleys will require some machining to the damper.

This damper works great for street performance or stock replacement applications.

Accurate crank bore for proper press fit on the crankshaft.

Damper has less than .005" runout.

NOTE: On Oldsmobile 330 engines, TDC mark must be repositioned. For Oldsmobile 400-425 engines, this damper will fit only the late production versions. Early versions have a different counterbalance than provided. A good balance shop can modify the counterbalance to work correctly on early 400-425 engines.

A racing SFI-Spec damper is available below.


Professional Products 80022 90022 PowerForce Plus harmonic damper Oldsmobile 350 400 455 harmonic damper balancer 80022$109.97

Click to enlargeProfessional Products 90022 PowerForce Plus
Professional Products 90022 PowerForce Plus harmonic damper balancer.

Fits Oldsmobile 455 425 403 400 350 330 engines.

A racing SFI-Spec damper that also works great for extreme street duty.

Both the hub and ring made of 1045 steel.

Measures 6.5" in diameter.

Weight of 10 pounds.

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

Painted semi-gloss black with red anodized ring.

Number 8-32 stainless steel machine screws are used.

High temperature elastomer for heavy duty racing.

Accurate crank bore for proper press fit on the crankshaft.

Damper has less than .005" runout.

This is an externally balanced damper with a bolt in counterweight which can be removed for a neutral balance if desired.

Features both the stock Oldsmobile pulley bolt pattern and the Chevrolet big block bold pattern for those who may want to run a crank trigger system. Use of Chevrolet pulleys will require some machining to the damper.

NOTE: On Oldsmobile 330 engines the TDC mark must be repositioned. For 400-425 engines, this damper will fit late production only. Early production 400-425 engines have a different counterbalance than provided. A good balance shop can modify the counterbalance to work correctly on the early models.

90022$199.97

PayPal Acceptance Mark




We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page.

We will not ship to freight forwarding - expediting companies.

PAYMENT METHODS: PayPal, Visa, Mastercard, Discover, American Express, money orders.

ecommerce provided by Yahoo! Small Business