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Procharger Harmonic Balancer Bolt Length

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Old 04-15-2022, 10:04 PM
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Procharger Harmonic Balancer Bolt Length

For the guys on here running a Procharger, what length bolt are you guys using for the harmonic balancer bolt? I just broke my old one and am replacing it with a new one. The ARP bolt that I got is 2-3/16" long. When I thread it in though, it only engages the threads about 1/4 to 3/8ths of an inch. This just doesnt seem to be enough engagement to me. Should I just buy a longer regular grade 8 bolt?
Old 04-20-2022, 08:56 AM
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Re: Procharger Harmonic Balancer Bolt Length

Originally Posted by 85Iroc-Z
For the guys on here running a Procharger, what length bolt are you guys using for the harmonic balancer bolt? I just broke my old one and am replacing it with a new one. The ARP bolt that I got is 2-3/16" long. When I thread it in though, it only engages the threads about 1/4 to 3/8ths of an inch. This just doesnt seem to be enough engagement to me. Should I just buy a longer regular grade 8 bolt?
The bolt needs to be engaged at least the diameter of the bolt.

-- Joe
Old 04-21-2022, 05:17 PM
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Re: Procharger Harmonic Balancer Bolt Length

Originally Posted by anesthes
The bolt needs to be engaged at least the diameter of the bolt.

-- Joe
Good to know, thanks. I just would have felt more comfortable if it went in further but that's the biggest one ARP sold
Old 05-02-2022, 10:14 PM
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Re: Procharger Harmonic Balancer Bolt Length

You could use this
https://www.summitracing.com/parts/a...make/chevrolet

or this is a bit longer, but smaller head size
https://www.summitracing.com/search/...th-in/3-000-in
Old 05-03-2022, 08:07 PM
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Re: Procharger Harmonic Balancer Bolt Length

I believe that first one is the one that I am using now. Thanks for the link on that second one.
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