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Old 06-22-2006, 12:04 AM
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Harmonic ballencer

Well I've rebuilt this 351 C lots of goodies and she's got about 6 or 7 thousand kms... so.. i think its time to start stompin on it at the local 1/4 mile.. My question is... the builder of the motor said my Harmonic balancer was ok... all so that the rubber was a little worn... but .. ya.. so i think i should get another one just to be sure.. What brand should i get and how much should it weight.

P.S. hey .. i don't want to mat it and have that ring go threw my hood haha... im sure it would be kinda hard to find another hood for this car! lol

thanks guys for the help
bill C

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Old 06-22-2006, 02:52 AM
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This is the way I would go about it. It will allow you to keep the factory damper with the correct I.D. stampings, much stronger than stock and cheaper than a HP damper. I would also have them 360 degree index it also.



All rebuilt harmonic balancers are first disassembled and cleaned. The parts are then inspected for defects, including stripped bolt holes and worn or cracked keyways and hubs. Harmonic balancers are then prepared for assembly.
  • Timing marks are set to the factory specification by using a laser aligning process.
  • After the timing marks are set, the harmonic balancers are then injected with a high-temperature, high-strength silicone rubber that is then platinum cured for a extremely strong hold.

  • The new silicone rubber is capable of withstanding temperature in excess of 450 degrees, and will hold up against pressures as high as 770 psi.

  • Rebuilt harmonic balancers carry a 3 year limited warranty.
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