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SBC Harmonic Balancer Bolt Small Block Damper Compatible With Chevy 280 305 350 383

Free shipping on orders over $29.99

$8.99

$ 3 .99 $3.99

In Stock
  • Harmonic Balancer Bolt High hex head prevents socket slippage when adjusting valves or rotating the engine to degree in a cam.
  • Extra thick parallel ground washer delivers a smoother more accurate more uniform torque.
  • Block Damper Designed specifically for small block Chevy.
  • Balancer Bolt Ideal for high performance drag race and circle track applications.
  • Balancer Bolt Harmonic Comes complete with split lock washers to prevent any loosening caused by vibration.



SB-Chevy, 7/16''-20 x 2-1/4''

SBC Balancer Bolt Harmonic Chevy 280 305 350 383 Small Block Damper
Grade 8 Material
Heat-Treated For Strength
Hex Prevents Socket Slippage
Accurate and Uniform Torque
Black Plated Finish


Dan H.
September 5, 2025
Exactly as advertised! Great item.
Jasonp277
September 4, 2025
Came in two days and fit like factory
Tyson
July 23, 2025
Item was as described and worked as it should
Johnny Franklin
June 17, 2025
seems ok
Gary S.
May 26, 2025
This bolt and washer was a perfect fit for my sbc 350, I hand taped the crankshaft threaded hole, used air pressure to blow it out then added Loctite blue to the threads and tightened up the bolt. Worked great, great value for the money.
VICTOR GARCIA
May 9, 2025
VERY STRONG MADE..HEAD BOLT MAKES IT EASY TO GRAB..THANK YOU
Trail boss
April 27, 2025
The right part for the right job
Jim
December 13, 2024
Great product / A++++ / Descent price / fast Delivery
Tracey
December 6, 2024
Perfect
Jamie B.
December 5, 2024
Works great
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