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![Harmonic Damper Balancer Big Block Chevy 454 [External] SFI Approved](https://www.jegs.com/images/mini_750/700/746/746-pce291.1064.jpg)
Vehicle Info NeededHarmonic Damper Balancer Big Block Chevy 454 [External] SFI Approved
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Lowest Price Guarantee- Harmonic Damper Balancer
- Big Block Chevy 454
- Outside Diameter: 8 in.
- Marking Range: 50 Degrees BTDC to 10 Degrees ATDC
- Black with White Markings
- External Balanced
- SFI-Approved 18.1
- Sold Individually
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. Does not fit Gen VI Engines.
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.
