Engines and Components› Harmonic Balancers
Professional Products
Olds V8 6.5 Harmonic Damper - Non-SFI
SKU: P021 80022
Moderate — 2–4 hours
Description
It is compatible with 330, 350, 400, 403, 425, and 455 cubic inch Olds engines. The damper includes the stock Olds accessory pulley bolt pattern and a Big Block Chevy bolt pattern for crank trigger systems. Note that using Chevy pulleys will require some machining.
Fitment
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Specifications
| Brand | Professional Products |
| Part Number | P021 80022 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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