-35%
-35%
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#UP228539
LS SFI HARM BALANCER STEEL
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Fits most LS engines and meets SFI Specification 18.1
$158.94
/each
In Stock
$246.99
Save $88.05
Order soon, only 1 left in stock!
Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information.
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Product Summary
6.325" Outside Diameter, 18.1 SFI Rating, Steel, Black
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Fits most LS engines and meets SFI Specification 18.1
- Free up horsepower over stock dampers, 30% more efficient abouve 5,000 rpm
- CNC-machined and designed to mount to crank hub so timing marks never change position
- Features inertial ring and hub, rebuild-able and tunable by replacing elastomer strips
- Exposed inertial weight at TDC provide indicator that elastomer strips need replaced when marks start to move
Key Specs
| Garage Sale Type | Blemished |
| Outside Diameter | 6.325" |
| Material Type | Steel |
| Finish | Painted |
| SFI Rated | Yes |
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855.313.9176Ineligible for Return
Contains items that cannot be returned
Speedway Motors UP228539 Details
Speedway Motors UP228539 Details

This is Garage Sale priced due to cosmetic imperfections. The item functions as originally intended but is discounted due to the blemishes. The photos above will show the imperfections.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
Speedway Motor's LS Harmonic Balancer is 30% more efficient above 5,000 rpm and frees up horse power over stock dampers. The shell is CNC-machined and is designed to mount to the crank hub so the timing marks never change position. It features an inertia ring and hub and is rebuild-able and tunable by replacing the elastomer strips. As an added feature, with the exposed inertia weight marked at TDC, you can tell that the elastomer strips need replacing when the marks start to move. All-around, this harmonic balancer has been built to handle your high performance LS engine with ease.
- Fits most LS engines and meets SFI Specification 18.1
- Free up horsepower over stock dampers, 30% more efficient above 5,000 rpm
- CNC-machined and designed to mount to crank hub so timing marks never change position
- Features inertial ring and hub, rebuild-able and tunable by replacing elastomer strips
- Exposed inertial weight at TDC provide indicator that elastomer strips need replaced when marks start to move
Charts
Speedway Motors UP228539 Specifications
Speedway Motors UP228539 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | UP228539 |
| Brand | Speedway Motors |
| Garage Sale Type | Blemished |
| Outside Diameter | 6.325" |
| Material Type | Steel |
| Finish | Painted |
| SFI Rated | Yes |
| GENERAL | |
| SFI Rating | 18.1 |
| Sold in Quantity | Each |
| Engine Balance | Internal |
| Degree Markings | Yes |
| Color | Black |
| Harmonic Balancer Construction | Elastomer |
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