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Old 02-27-2021, 11:42 AM
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Default Harmonic Balancer

Looking for recommendations on replacing the stock 1972 455HO harmonic vibration damper on my car. Is there an excellent quality replacement with the correct 4 bolt pattern so I can use the original pulleys?
Thanks for any input.


Last edited by 4birds; 02-27-2021 at 11:51 AM.
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Old 02-27-2021, 11:55 AM
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mrennie mrennie is offline
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Powerbond makes an excellent street damper that also has degree markings #PB1056ST. I believe the same unit is sold by Pioneer in their packaging.

It also has the correct bevelled edge required for some A/C pulleys (which the SFI rated model does not).

https://www.rockauto.com/en/parts/da...+balancer,5512

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Last edited by mrennie; 02-27-2021 at 12:01 PM.
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Old 02-27-2021, 12:22 PM
Chief of the 60's Chief of the 60's is offline
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Stock or for racing specs?

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Old 02-27-2021, 12:50 PM
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Street use and occasional 1/4 mile "testing ". Max RPM 5500. Not a race car.

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Old 02-27-2021, 01:00 PM
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Quote:
Originally Posted by 4birds View Post
Street use and occasional 1/4 mile "testing ". Max RPM 5500. Not a race car.
If you go on a track you need an SFI balancer to pass tech, so my NOS one is out.

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Old 02-27-2021, 01:04 PM
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The sponsor of this web site Ames performance carries a replacement one that’s SFIb rated one for $150, and it takes the 4 bolt pulleys.
They have the bolt and thick washer also and I would highly recommend replacing the bolt!

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Old 02-27-2021, 01:06 PM
Chief of the 60's Chief of the 60's is offline
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Quote:
Originally Posted by steve25 View Post
The sponsor of this web site Ames performance carries a stock replacement forSFI rated one for $150.
They have the bolt and thick washer also and I would highly recommend replacing the bolt!

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Old 02-27-2021, 02:03 PM
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Quote:
Originally Posted by Chief of the 60's View Post
If you go on a track you need an SFI balancer to pass tech, so my NOS one is out.
SFI isn't required until 10.99 or quicker.

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Old 02-27-2021, 04:09 PM
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Pioneer offers an SFI version. Have one on my own engine and have used a lot of them over the years with zero issues. We even used one on the last 505 we did here making almost 750hp and it has lived fine for quite a few years now.....

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Old 02-27-2021, 04:45 PM
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Second vote for the Pioneer SFI balancer

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Old 02-28-2021, 12:31 AM
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Romac

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