Proform 66509 Harmonic Balancer
- Chevy small block 350 harmonic balancer
- 6-3/4 inch center timing mark
- 8.89 pounds
- 7.5 x 7.25 x 5.5 inches product size
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A harmonic balancer made for the Chevy small block with a center timing mark. The listing is brief, so material, damper type and warranty are not stated.
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ASIN: B000630IMGModel: 66509Category: Harmonic Balancers
Overview
A Chevy small block owner replacing a worn damper can use this ProForm harmonic balancer, which is marked at the center for timing. The listing offers only a short description, weight and size.
The part number, timing mark and engine family are clearly stated, which makes matching straightforward for that engine. Everything else, from the bolt pattern to the finish, is left out of the listing.
Who it's for
Written for a Chevy small block rebuild or refresh where the harmonic balancer needs replacing. Owners of other engine families, or those who need detailed specifications, should look elsewhere.
Pros and cons
- Engine family clearly stated
- Center timing mark marked
- Weight and size listed
- Material not listed
- No installation details
- No warranty details
Performance notes
A harmonic balancer absorbs crankshaft vibration and carries the timing marks used to set ignition. This one is for the Chevy small block, and the listing gives no further detail on how it is built.
Specifications
| Brand | ProForm |
|---|---|
| Model | 66509 |
| Dimensions & fit | |
| Weight | 8.89 pounds |
| Dimensions | 7.5 x 7.25 x 5.5 inches |
| Included components | |
| Package Quantity | 1 |
| Other details | |
| Engine fit | Chevy small block 350 |
| Center timing mark | 6-3/4 inch |
| Model number | 66509 |
| Product Type | Auto Part |
Frequently asked questions
What engine is the ProForm 66509 harmonic balancer for?
The description says it is for the Chevy small block 350.
How do I install the ProForm 66509 balancer?
The listing gives no installation steps or torque figures. It states a center timing mark of 6-3/4 inch for the Chevy small block 350.
Does the ProForm 66509 have a timing mark?
Yes. The description lists a center timing mark of 6-3/4 inch.