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.
Features & Benefits
- 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
| Engine: | Chevy Big Block V8 |
|---|---|
| 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: | 2.5 IN |
| Product Type: | Harmonic Balancer Bolts |
| Thread Size: | 1/2-20 |






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