Harmonic Balancers
Circle Track Harmonic Balancers at JJ Motorsports
Reduce crankshaft vibrations and protect your engine from excessive wear with high-performance harmonic balancers from JJ Motorsports. Designed for demanding circle track racing, these balancers ensure smooth operation and longevity under high-RPM conditions, ideal for IMCA, USMTS, late models, modifieds, and street stocks, available in SFI-certified options for internal and external balance on SBC, SBF, and GM LS engines.
Shop trusted brands like Pioneer for SFI-rated dampers, KRC Power Steering for R-Lok adapters, and Blueprint Engines for external balance balancers. Explore related categories such as Harmonic Balancers and Components for additional parts or Crankshafts and Components for engine upgrades.
Top Circle Track Harmonic Balancers
- Harmonic Damper SFI SBF 302/351W Int. Balance 872034 – Harmonic Balancer 6.370 in OD Steel Internal Balance Ford Small Block.
- KRC Adapter Pro R-Lok SBC KRC 38140500 – Crankshaft Hub R-Lok 1.245 in Long Hardware Included Black Anodized Each.
- SBC Balancer 8in OD 400 External Balance BPP400L – Harmonic Balancer 8.000 in OD Steel Black Zinc External Balance Each.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Harmonic Damper SFI SBF 302/351W Int. Balance 872034
PIONEER
$368.99Harmonic Balancer6.370 in ODSteelInternal BalanceFord Small BlockPIO872034- SKU:
- PIO872034
- Availability:
- Ships Same Business Day
- Weight:
- 9.20 LBS
$368.99Qty in Cart: 0Quantity:Price:$368.99Subtotal: -
KRC Adapter Pro R-Lok SBC KRC 38140500
KRC POWER STEERING
$132.27Crankshaft HubR-Lok1.245 in LongHardware IncludedBlack AnodizedEachKRC38140500- SKU:
- KRC38140500
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$132.27 -
SBC Balancer 8in OD 400 External Balance BPP400L
BLUEPRINT ENGINES
$139.95Harmonic Balancer8.000 in ODSteelBlack ZincExternal BalanceEachBPEBPP400L- SKU:
- BPEBPP400L
- Availability:
- Ships Same Business Day
- Weight:
- 14.00 LBS
$139.95 -
ATI SBC 6.325 SFI Harmonic Damper Internal Balance 917781U
ATI PERFORMANCE
$357.99Harmonic BalancerSuper DamperUndersized6.325 in ODSFI-18.1SteelBlack PaintSmall Block ChevyEachATI917781U- SKU:
- ATI917781U
- Availability:
- Ships Same Business Day
- Weight:
- 9.35 LBS
$357.99 -
ATI 7.074 Harmonic Damper SFI GM LS1 3-Ring 917777
ATI PERFORMANCE
$385.99Harmonic Balancer Shell7.074 in ODSFI 18.1SteelBlackInternal BalanceGM LS-SeriesEachATI917777- SKU:
- ATI917777
- Availability:
- Ships Same Business Day
- Weight:
- 12.05 LBS
$385.99 -
Damper - SBF 289-351W 28oz External Balance TFS-19006
TRICK FLOW
$261.99Harmonic BalancerTrack Max6.610 in ODSFI 18.1SteelBlackExternal BalanceSmall Block FordEachTRFTFS-19006- SKU:
- TRFTFS-19006
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
$261.99 -
Quarter Master Crank Hub Assy SBC Ford 180331
QUARTER MASTER
$259.44Crankshaft Hub1.375 in Shaft Diameter10 SplineSteelBlack OxideSmall Block FordEachQTR180331- SKU:
- QTR180331
- Availability:
- Ships Same Business Day
- Weight:
- 1.83 LBS
$259.44 -
SBF 6.61in Balancer 28oz Ext. Balance - SFI 34269
PRO-RACE PERFORMANCE PRODUCTS
$221.99Harmonic BalancerPro Sport6.61 in ODSFI 18.1IronNatural28 oz External BalanceSmall Block FordEachPRH34269- SKU:
- PRH34269
- Availability:
- Ships Same Business Day
- Weight:
- 12.60 LBS
$221.99 -
SBC 6.61in Balancer Ext. Balance - SFI 34266
PRO-RACE PERFORMANCE PRODUCTS
$222.99Harmonic BalancerPro Sport6.61 in ODSFI 18.1IronNaturalExternal BalanceSmall Block ChevyEachPRH34266- SKU:
- PRH34266
- Availability:
- Ships Same Business Day
- Weight:
- 11.40 LBS
$222.99 -
SBC 6.1in Balancer Int. Balance - SFI 34265
PRO-RACE PERFORMANCE PRODUCTS
$218.99Harmonic BalancerPro Sport6.61 in ODSFI 18.1IronNaturalInternal BalanceSmall Block ChevyEachPRH34265- SKU:
- PRH34265
- Availability:
- Ships Same Business Day
- Weight:
- 10.60 LBS
$218.99 -
SBC 6.61in Balancer Int. Balance - SFI 34262
PRO-RACE PERFORMANCE PRODUCTS
$206.99Harmonic BalancerPro Sport6.61 in ODSFI 18.1IronNaturalInternal BalanceSmall Block ChevyEachPRH34262- SKU:
- PRH34262
- Availability:
- Ships Same Business Day
- Weight:
- 10.64 LBS
$206.99 -
GM LS 7.25in Balancer Int. Balance - SFI 34261
PRO-RACE PERFORMANCE PRODUCTS
$279.99High-performance harmonic balancer designed for GM LS-Series engines Pro Sport series offering superior durability and reliability Compact 7.25-inch outer diameter for optimal fit and performance Meets SFI 18.1 standards for safety and performance in...PRH34261- SKU:
- PRH34261
- Availability:
- Ships Same Business Day
- Weight:
- 13.42 LBS
$279.99 -
GM LS 7.25in Balancer Int. Balance - SFI 34260
PRO-RACE PERFORMANCE PRODUCTS
$252.99High-performance harmonic balancer designed for GM LS-Series engines Pro Sport series for enhanced durability and reliability Compact 7.25-inch outer diameter for optimal fit Meets SFI 18.1 specifications for safety in motorsport...PRH34260- SKU:
- PRH34260
- Availability:
- Ships Same Business Day
- Weight:
- 12.95 LBS
$252.99 -
SBC 6.1in Balancer Lwt. Int. Balance - SFI 31262
PRO-RACE PERFORMANCE PRODUCTS
$174.99Harmonic BalancerPro SportUltra Low Weight6.1 in ODSFI 18.1IronNaturalInternal BalanceSmall Block ChevyEachPRH31262- SKU:
- PRH31262
- Availability:
- Ships Same Business Day
- Weight:
- 5.67 LBS
$174.99 -
Crank Adapter Sleeve - GM LS to Early Trans. 1800346
PRW INDUSTRIES, INC.
$23.58Crank Adapter SleeveGM Converter to GM LS-Series CrankSteelNaturalEachPQX1800346- SKU:
- PQX1800346
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$23.58 -
Ford Performance Harmonic Damper 302/351W Neutral Balance SFI 18-1 M-6316-D302
FORD
$386.99The Ford Performance Harmonic Damper M-6316-D302 is engineered for Small Block Ford 302 and 351W engines, providing superior vibration control and enhanced engine performance. Constructed from durable steel with a clear powder coat finish, this damper...FRDM6316-D302- SKU:
- FRDM6316-D302
- Availability:
- Ships Same Business Day
- Weight:
- 10.40 LBS
$386.99 -
ATI SBC 7.074 Harmonic Damper - SFI 917783K
ATI PERFORMANCE
$393.99Harmonic BalancerSuper Damper7.074 in ODSFI 18.1Single 1/8 in KeywaySteelBlackInternal BalanceSmall Block ChevyEachATI917783K- SKU:
- ATI917783K
- Availability:
- Ships Same Business Day
- Weight:
- 11.50 LBS
$393.99 -
ATI SBF 6.325 Harmonic Damper - SFI 3-Bolt 917511AK
ATI PERFORMANCE
$400.99Harmonic BalancerSuper Damper6.325 in ODSFI 18.1SteelBlackInternal BalanceFord Small BlockEachATI917511AK- SKU:
- ATI917511AK
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 LBS
$400.99 -
ATI GM LS 6.325 Harmonic Damper - SFI 917215
ATI PERFORMANCE
$400.99Harmonic Balancer6.325 in ODSFI 18.1Aluminum / SteelBlackInternal BalanceGM LS-SeriesEachATI917215- SKU:
- ATI917215
- Availability:
- Ships Same Business Day
- Weight:
- 7.30 LBS
$400.99 -
SBC 6.25 Harmonic Balance - SFI 872021
PIONEER
$377.99SBC 6.25 Harmonic Balance - SFIHarmonic Balancer6.100 in ODSteelBlackInternal BalanceSmall Block ChevyEachPIO872021- SKU:
- PIO872021
- Availability:
- Ships Same Business Day
- Weight:
- 6.85 LBS
- MFG Part #:
- 872021
$377.99Qty in Cart: 0Quantity:Price:$377.99Subtotal:
