Holley Harmonic Balancer Bolt - Chevy Small Block - 12-Point Product Description:

SBC CRANK DAMPER BOLT SBC MID-MOUNT

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:

• 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

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.