Holley - 97-321
Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point
Harmonic Balancer Bolt; For Chevy Big Block 396-454 w/Mid Mount Accessory Drive System; 12 Point; .5 in. Wrench Size; .200 in. Thick Washer; Black;
Replacement harmonic balancer bolt with thick washer for Big Block Chevy Mid-Mount Accessory drive system. 12-Point, 1/2 in. Wrench Size, 1/2 in.-20 x 2.500 in. Under Head Length, Washer diameter 1.5 in. x 0.200 in. Thick.
- Reusable - Not Torque-To-Yield
- Made from Steel
- Large Diameter Extra Thick Washer - .200" Thick x 1.5" Diameter
- 180,000 PSI Rating (Grade 9)
- Black E-Coat Finish
- 1/2" Wrench Size
- 12-Point Bolt Head
Brand: Holley
Emission Code: 6
Engine: Chevy Big Block V8
Finish: Black E-Coat
Head Style: 12-Point
Material: Steel
Product Type: Harmonic Balancer Bolts
PSI Rating: 180,000
Reusable: Yes
Thread Size: 1/2-20
Under Head Length: 2.500"
Washer Included: Yes
Washer Size: .200" Thick x 1.5" Diameter
Wrench Size: 1/2"
