Holley - 97-320
Holley Harmonic Balancer Bolt - Chevy Small Block - 12-Point
Harmonic Balancer Bolt; For Chevy Small Block 283-400 w/Mid Mount Accessory Drive System; 12 Point; 7/16 in. Wrench Size; .200 in. Thick Washer; Black;
Replacement harmonic balancer bolt with thick washer for Small Block Chevy Mid-Mount Accessory drive system. 12-Point, 7/16 in. Wrench Size, 7/16 in.-20 x 2.800 in. Under Head Length, Washer diameter 1.5 in. x 0.200 in. Thick.
- 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
Bolt Grade: 10.9
Brand: Holley
Category: Engine
Color: Black
Emission Code: 6
Engine: Chevrolet Small Block Gen I
Finish: Black E-Coat
Grade Type: Performance
Head Drive Type: 12 Point
Head Style: 12-Point
Length: 2.8
Material: Steel
part type: Engine Harmonic Balancer Bolt
Product Type: Harmonic Balancer Bolts
PSI Rating: 180,000
Reusable: Yes
Sub Category: Hardware, Fasteners and Fittings
Thread Diameter: 7/16
Thread Pitch: 20
Thread Size: 7/16-20
Under Head Length: 2.800"
Universal Or Specific Fit: Universal
Warning: California Proposition 65
Washer Included: Yes
Washer Size: .200" Thick x 1.5" Diameter
Wrench Size: 7/16"
