Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point 97-321
Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point 97-321 is backordered and will ship as soon as it is back in stock.
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Fitment
Fitment
Warranty Information
Warranty Information
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Description
Description
Replacement Harmonic Balancer Bolt with Thick Washer, for Chevy Big Block 396-454 with Holley Mid-Mount Accessory Drive System 20-242 & 20-242BK
Replacement harmonic balancer bolt with thick washer for Big Block Chevy Mid-Mount Accessory drive system. 12-Point, 1/2" Wrench Size, 1/2"-20 x 2.500" Under Head Length, Washer diameter 1.5" x 0.200" Thick.
NOTES: Torque Harmonic Balancer Bolt to 85 ft/lbs.
Features:
- 180,000 PSI Rating (Grade 9)
- Made from Steel
- Black E-Coat Finish
- 1/2" Wrench Size
- 12-Point Bolt Head
- Large Diameter Extra Thick Washer - .200" Thick x 1.5" Diameter
- Reusable - Not Torque-To-Yield
Specs:
| Bolt Grade | 10.9 |
|---|---|
| Brand | Holley |
| Color | Black |
| Emission Code | 6 |
| Engine | Chevy Big Block V8 |
| Finish | Black E-Coat |
| Grade Type | Performance |
| Head Drive Type | 12 Point |
| Head Style | 12-Point |
| Length | 2.5Inch |
| Material | Steel |
| Product Type | Harmonic Balancer Bolts |
| PSI Rating | 180,000 |
| Reusable | Yes |
| Thread Diameter | 1/2Inch |
| Thread Pitch | 20 |
| Thread Size | 1/2-20 |
| Under Head Length | 2.500" |
| Universal Or Specific Fit | Universal |
| Washer Included | Yes |
| Washer Size | .200" Thick x 1.5" Diameter |
| Wrench Size | 1/2" |
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