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Vehicle Info NeededHarmonic Damper Balancer Big Block Ford 429/460
Ships on 11/03/2026
Lowest Price Guarantee- Harmonic Damper Balancer
- Big Block Ford 429/460
- Outside Diameter: 7.250"
- 50 BTDC to 10 ATDC Marking Range
- Internal Engine Balance
- SFI-Approved
Using only three parts--a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two--these SFI-approved Fluid dampers can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
Protect Your Engine from Harsh Vibrations
Speedmaster Harmonic Dampers feature a strong bonding process that adheres the elastomer to the inside diameter of the steel inertia ring and the outside diameter of the hub for an improved elastomer. Also featured are clear, white, easy-to-read timing marks with a black background. At any frequency and RPM, the inertia ring harmonically rotates with the engine and absorbs the torsion vibration from the rotating assembly. This process extends crankshaft and bearing life for increased engine power and torque.
