big-autoparts

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

$9.50$24.00

912+ bought in the past month

About this item

  • 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.
$9.50
Was $24.00Save $14.50

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Technical specifications
manufacturerBig-Autoparts
brandbig-autoparts
modelSBC Harmonic Balancer Bolt Small Block Damper
item_weight5.3 ounces
package_dimensions4.09 x 2.09 x 1.22 inches
item_model_numberBA-10802004
is_discontinued_by_manufacturerNo
manufacturer_part_numberBA-10802004
best_sellers_rank#19,466 in Automotive ( See Top 100 in Automotive ) #133 in Automotive Replacement Engine Parts
date_first_availableApril 27, 2017

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Customer reviews

4.6425 ratings
  1. 588%
  2. 413%
  3. 30%
  4. 20%
  5. 10%

Customers say

Customers find the harmonic balancer bolt to be of excellent quality and say it fits perfectly.

★★★★★

Worked on Chevy in-line 6

Brett CJuly 18, 2025✓ Verified purchase

Good quality. Harmonic balancer was walking off. This fixed in Read more

★★★★★

Tight

RockhoundFebruary 27, 2026✓ Verified purchase

Exact fit Read more

★★★★★

Good deal.

Don JuanJanuary 11, 2026✓ Verified purchase

Good deal! Quick delivery as well. Read more

★★★★★

good stuff

Jim CipolloneMay 9, 2025✓ Verified purchase

worked fine, fit job perfectly Read more

★★★★☆

looks good

Johnny FranklinNovember 2, 2023✓ Verified purchase

seems ok Read more

★★★★★

buy

Ralph KoonAugust 21, 2025✓ Verified purchase

very well made Read more

★★★★★

Great product

Gary S.April 20, 2024✓ Verified purchase

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. Read more

★★★★★

Will do business with this vendor again

John s barberJuly 14, 2025✓ Verified purchase

As described Read more

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