Holley Engine Harmonic Balancer Bolt

97-321

BBC CRANK DAMPER BOLT BBC MID-MOUNT;Torque Harmonic Balancer Bolt to 85 ft/lbs.;Damper bolt;Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point;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.;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