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
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SBC 6.25in. Steel Harmonic Balancer - SFI PB1012SS
POWER BOND BALANCERS
$230.99A harmonic balancer is critical for managing crankshaft vibration in high-RPM environments—inadequate damping leads to flex, fatigue, and premature failure. This SBC unit combines race-proven lightweight construction with SFI certification, giving you...PBBPB1012-SS- SKU:
- PBBPB1012-SS
- Availability:
- Ships Same Business Day
- Weight:
- 6.93 LBS
- MFG Part #:
- PB1012SS
$230.99 -
MSD Timing Tape Kit for 5.25 to 8 inch Harmonic Balancers 8985
MSD IGNITION
$8.83Accurate ignition timing is non-negotiable for consistent engine performance and reliability. The MSD Timing Tape Kit eliminates guesswork by providing eight precision-marked tapes that fit harmonic balancers across a wide diameter range, allowing you to...MSD8985- SKU:
- MSD8985
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 8985
$8.83 -
Mr. Gasket Sb Ford 6-3/8in Timing Tape 1594
MR. GASKET
$26.62Accurate ignition timing is non-negotiable when tuning a Small Block Ford engine. This Mr. Gasket timing tape mounts directly to your harmonic balancer, giving you precise degree markings for easy timing verification and adjustment without guesswork...MRG1594- SKU:
- MRG1594
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 1594
$26.62 -
Mr. Gasket Sbc & Bbc 8in. Timing Tape 1591
MR. GASKET
$20.10Accurate ignition timing is fundamental to engine performance, and guesswork has no place in your shop. The Mr. Gasket Sbc & Bbc 8in. Timing Tape eliminates the need for expensive dial indicators and approximation by providing a precise, easy-to-read...MRG1591- SKU:
- MRG1591
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 1591
$20.10 -
Mr. Gasket Sbc 6-3/4in Timing Tape 1588
MR. GASKET
$26.62Accurate ignition timing is non-negotiable for peak engine performance and reliability. This Mr. Gasket timing tape provides precision calibration for your Small Block Chevy, allowing you to dial in spark advance with confidence during tuning sessions or...MRG1588- SKU:
- MRG1588
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 1588
$26.62 -
Fluidampr SBC 7-1/4 Harmonic Damper - SFI 720111
FLUIDAMPR
$490.72Harmonic dampers are critical to engine longevity—they absorb destructive crankshaft vibrations that can lead to premature bearing wear and catastrophic failure. The Fluidampr SBC damper uses internal fluid technology to dissipate vibration more...FLU720111- SKU:
- FLU720111
- Availability:
- Ships Same Business Day
- Weight:
- 14.60 LBS
- MFG Part #:
- 720111
$490.72 -
Fluidampr SBC 7-1/4 Harmonic Damper - SFI 720101
FLUIDAMPR
$528.00Harmonic dampers are critical to engine longevity—they absorb destructive crankshaft vibrations that can lead to premature wear, bearing failure, and catastrophic engine damage. The Fluidampr SBC 7-1/4 delivers factory-grade damping performance with SFI...FLU720101- SKU:
- FLU720101
- Availability:
- Ships Same Business Day
- Weight:
- 12.94 LBS
- MFG Part #:
- 720101
$528.00 -
Fluidampr SBF 6-5/8 Harmonic Damper - SFI 650211
FLUIDAMPR
$518.47Harmonic dampers are non-negotiable for any serious Small Block Ford build—they absorb destructive crankshaft vibrations that can lead to premature bearing wear, fatigue cracks, and catastrophic engine failure. The Fluidampr SBF 6-5/8 uses a proven...FLU650211- SKU:
- FLU650211
- Availability:
- Ships Same Business Day
- Weight:
- 13.34 LBS
- MFG Part #:
- 650211
$518.47Qty in Cart: 0Quantity:Price:$518.47Subtotal: -
Fluidampr SBC 6-1/4 Harmonic Damper - SFI 620101
FLUIDAMPR
$385.82Harmonic dampers are critical to protecting your engine's crankshaft from destructive vibration cycles—especially under high RPM and forced induction conditions. The Fluidampr SBC 6-1/4 uses internal balancing and precision engineering to absorb these...FLU620101- SKU:
- FLU620101
- Availability:
- Ships Same Business Day
- Weight:
- 8.71 LBS
- MFG Part #:
- 620101
$385.82 -
Coleman Harmonic Balancer SBC Crate Engine 6in Alum 25127
COLEMAN MACHINE
$365.99A quality harmonic balancer is critical for Small Block Chevy engine reliability—it reduces crankshaft vibration that can lead to premature wear, bearing failure, and power loss. The Coleman 25127 delivers precision balancing in a compact 6-inch aluminum...COL25127- SKU:
- COL25127
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MFG Part #:
- 25127
$365.99 -
Coleman Harmonic Balancer SBC Crate Engine 8in Alum 25126
COLEMAN MACHINE
$588.99A quality harmonic balancer is essential for SBC crate engine reliability—it absorbs crankshaft vibrations that can lead to premature wear, bearing failure, and power loss. The Coleman 25126 delivers proven durability with a lightweight aluminum...COL25126- SKU:
- COL25126
- Availability:
- Ships Same Business Day
- Weight:
- 4.30 LBS
- MFG Part #:
- 25126
$588.99 -
ATI SBF 6.325 Harmonic Damper - SFI 918920
ATI PERFORMANCE
$411.99A harmonic damper is critical to engine longevity—it absorbs destructive crankshaft vibrations that can lead to premature failure in high-performance applications. The ATI SBF 6.325 Super Damper delivers reliable vibration control with SFI certification,...ATI918920- SKU:
- ATI918920
- Availability:
- Ships Same Business Day
- Weight:
- 9.93 LBS
- MFG Part #:
- 918920
$411.99 -
ATI SBF 6.325 Harmonic Damper - SFI 918911
ATI PERFORMANCE
$450.99Harmonic vibration at the crankshaft accelerates wear on bearings, seals, and the entire drivetrain—especially under high RPM or forced induction. The ATI SBF 6.325 Harmonic Damper isolates destructive oscillations before they propagate through your...ATI918911- SKU:
- ATI918911
- Availability:
- Ships Same Business Day
- Weight:
- 11.79 LBS
- MFG Part #:
- 918911
$450.99 -
ATI SBF 6.325 Harmonic Damper - SFI 918900
ATI PERFORMANCE
$462.99Harmonic vibration can destroy your Small Block Ford's crankshaft, reducing engine life and reliability under high RPM conditions. The ATI SBF 6.325 Super Damper absorbs destructive oscillations that stock dampers can't handle, protecting your investment...ATI918900- SKU:
- ATI918900
- Availability:
- Ships Same Business Day
- Weight:
- 11.29 LBS
- MFG Part #:
- 918900
$462.99 -
ATI SBF 6.325 Harmonic Damper - SFI 918895
ATI PERFORMANCE
$430.99Uncontrolled crankshaft vibration degrades engine efficiency, accelerates wear on bearings and seals, and can cause catastrophic failure at high RPM. The ATI SBF 6.325 Harmonic Damper eliminates these risks with precisely tuned elastomer technology that...ATI918895- SKU:
- ATI918895
- Availability:
- Ships Same Business Day
- Weight:
- 11.35 LBS
- MFG Part #:
- 918895
$430.99 -
ATI SBC Harmonic Damper SFI 6.325 Internal Balance 917789
ATI PERFORMANCE
$357.99Harmonic dampers are critical to engine longevity and reliability—they absorb destructive crankshaft vibrations that can lead to premature bearing wear and catastrophic failure. The ATI SBC Super Damper delivers precision damping with SFI 18.1...ATI917789- SKU:
- ATI917789
- Availability:
- Ships Same Business Day
- Weight:
- 9.45 LBS
- MFG Part #:
- 917789
$357.99 -
ATI SBC Harmonic Damper SFI 7.074 Internal Balance 917785
ATI PERFORMANCE
$383.99A quality harmonic damper is critical for small block Chevy engines—it reduces destructive crankshaft vibration that can lead to premature bearing wear and timing chain failure. The ATI Super Damper absorbs harmonic oscillations with precision, keeping...ATI917785- SKU:
- ATI917785
- Availability:
- Ships Same Business Day
- Weight:
- 11.25 LBS
- MFG Part #:
- 917785
$383.99 -
ATI SBC 6.325 Harmonic Damper - SFI 917784
ATI PERFORMANCE
$366.99Harmonic vibration can tear apart internal engine components and reduce power delivery—the ATI SBC 6.325 Super Damper absorbs destructive crankshaft oscillations to protect your build and unlock consistent performance. Built with premium steel...ATI917784- SKU:
- ATI917784
- Availability:
- Ships Same Business Day
- Weight:
- 9.77 LBS
- MFG Part #:
- 917784
$366.99 -
ATI SBC 7.074 Harmonic Damper - SFI 917783
ATI PERFORMANCE
$369.99Harmonic dampers are critical to engine longevity—they absorb destructive crankshaft vibrations that can lead to premature bearing wear and catastrophic failure at high RPM. The ATI SBC Super Damper is engineered with precision-tuned elastomer technology...ATI917783- SKU:
- ATI917783
- Availability:
- Ships Same Business Day
- Weight:
- 11.56 LBS
- MFG Part #:
- 917783
$369.99 -
ATI SBC 6.325 Harmonic Damper - SFI 917781
ATI PERFORMANCE
$319.99Harmonic dampers are critical for protecting your engine from destructive vibrations that accumulate during high-RPM operation. The ATI SBC 6.325 Super Damper combines precision engineering with SFI certification, ensuring reliable performance whether...ATI917781- SKU:
- ATI917781
- Availability:
- Ships Same Business Day
- Weight:
- 9.26 LBS
- MFG Part #:
- 917781
$319.99
