Description
Description
Replacement Harmonic Balancer Bolt with Thick Washer, for Chevy Small Block 283-400 with Holley Mid-Mount Accessory Drive System 20-240 & 20-240BK
Replacement harmonic balancer bolt with thick washer for Small Block Chevy Mid-Mount Accessory drive system. 12-Point, 7/16″ Wrench Size, 7/16″-20 x 2.800″ Under Head Length, Washer diameter 1.5″ x 0.200″ Thick.
Features & Benefits
- 180,000 PSI Rating (Grade 9)
- Made from Steel
- Black E-Coat Finish
- 7/16″ Wrench Size
- 12-Point Bolt Head
- Large Diameter Extra Thick Washer – .200″ Thick x 1.5″ Diameter
- Reusable – Not Torque-To-Yield
| Engine: | Chevrolet Small Block Gen I |
|---|---|
| Color: | Black |
| Head Style: | 12-Point |
| Grade Type: | Performance |
| Part Type: | Engine Harmonic Balancer Bolt |
| Material: | Steel |
| Washer Included: | Yes |
| Universal Or Specific Fit: | Universal |
| Finish: | Black E-Coat |
| Length: | 2.8 IN |
| Product Type: | Harmonic Balancer Bolts |
| Thread Size: | 7/16-20 |





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