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Holley

Holley Harmonic Balancer Bolt - Chevy Small Block - 12-Point

Replacement Harmonic Balancer Bolt with Thick Washer, for Chevy Small Block 283-400 with Holley Mid-Mount Accessory Drive System 20-240 & 20-240BK

Part # 97-320 Be the first to write a review

Holley Harmonic Balancer Bolt - Chevy Small Block - 12-Point

Estimated Ship Date: 12/31/2024
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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:

  • 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

About Holley

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Brand Holley
Emission Code6
FinishBlack E-Coat
Head Style12-Point
MaterialSteel
Product TypeHarmonic Balancer Bolts
PSI Rating180,000
ReusableYes
Thread Size7/16-20
Under Head Length2.800"
Washer IncludedYes
Washer Size.200" Thick x 1.5" Diameter
Wrench Size7/16"
UPC090127068984
Part Number97-320
Torque Harmonic Balancer Bolt to 60 ft/lbs.

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