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Need harmonic balancer

Old 06-13-2018, 02:20 AM
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Rexde1
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Default Need harmonic balancer

Looks like mine is wobbling,my belt was chirping and made me look. I donít want a GM so what is a good aftermarket one. Motor is stock with 74,000 miles.
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Old 06-13-2018, 05:54 AM
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Dayco Powerbond PB1117N. Almost any parts house will have it.
Don't forget the ARP 234-2503 bolt. Right now they are back ordered nation wide so you will have to search for it. They are out there you just have to find one.
Good luck!
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Old 06-13-2018, 07:18 AM
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Originally Posted by Grandpa1 View Post
Dayco Powerbond PB1117N. Almost any parts house will have it.
Don't forget the ARP 234-2503 bolt. Right now they are back ordered nation wide so you will have to search for it. They are out there you just have to find one.
Good luck!
Amazon has both items.
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Old 06-13-2018, 07:44 AM
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Ordered mine yesterday from summit had to go with new GM bolt.
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Old 06-13-2018, 11:49 AM
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Went ATI and ARP for mine...overkill, but I never wanted to do it again.
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Old 06-13-2018, 01:09 PM
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You might want to pin it to the crank while you're changing it. PITA job to change the balancer, and someday, you just might want a SC. The pinning is quite easy.
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Old 06-14-2018, 03:57 PM
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Originally Posted by Grandpa1 View Post
Dayco Powerbond PB1117N.


I have a PB running a mild 400rwhp and it's more then adequate.
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Old 06-14-2018, 04:37 PM
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Originally Posted by 'Shifter View Post
Went ATI and ARP for mine...overkill, but I never wanted to do it again.
Used the ATI and ARP; pinned to the crank. For a little extra money it offers great peace of mind.
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Old 06-14-2018, 05:09 PM
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Originally Posted by Route99 View Post
Used the ATI and ARP; pinned to the crank. For a little extra money it offers great peace of mind.
Same stuff going in today, and yes I'm gonna pin it
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Old 06-15-2018, 10:53 AM
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I have the powerbond sitting here and i bought a pin jig from a guy... but now i'm questioning how i want to do this...

i was going to pin through the front and use the PB1117N i have here...

but now i'm contemplating going with the summit one

https://www.summitracing.com/parts/sum-c2501/overview/

and using the ATI pin kit through the side of the snout...

Any thoughts? i'm eventually going FI but probably just staying 6 rib
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Old 06-15-2018, 12:00 PM
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Originally Posted by 2k2wranglerx View Post
I have the powerbond sitting here and i bought a pin jig from a guy... but now i'm questioning how i want to do this...

i was going to pin through the front and use the PB1117N i have here...

but now i'm contemplating going with the summit one

https://www.summitracing.com/parts/sum-c2501/overview/

and using the ATI pin kit through the side of the snout...

Any thoughts? i'm eventually going FI but probably just staying 6 rib
That's a good looking balancer, I wonder where it's made though?
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Old 06-15-2018, 01:29 PM
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Originally Posted by Grandpa1 View Post
Dayco Powerbond PB1117N. Almost any parts house will have it.
Don't forget the ARP 234-2503 bolt. Right now they are back ordered nation wide so you will have to search for it. They are out there you just have to find one.
Good luck!
A local shop that specializes in LS motors told me this particular OEM-style Powerbond unit will fail just like the GM OEM one since it's constructed the same way (with rubber instead of being fully metal). And that there's a different Powerbond "race" balancer which won't ever fail.

Has anyone used this PB1117N Powerbond OEM-style balancer over a long period of time/miles and can comment on how it holds up? I'd rather save the money and get this Powerbond PB1117N OEM style rather than the race version if it's good enough and won't fail.

Last edited by ArmchairArchitect; 06-15-2018 at 01:30 PM.
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Old 06-15-2018, 02:45 PM
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Originally Posted by ArmchairArchitect View Post
A local shop that specializes in LS motors told me this particular OEM-style Powerbond unit will fail just like the GM OEM one since it's constructed the same way (with rubber instead of being fully metal). And that there's a different Powerbond "race" balancer which won't ever fail.

Has anyone used this PB1117N Powerbond OEM-style balancer over a long period of time/miles and can comment on how it holds up? I'd rather save the money and get this Powerbond PB1117N OEM style rather than the race version if it's good enough and won't fail.
Plenty of guys here are running the PB1117N. I've only had mine on for about a year so far with no issues. My car is about 80% track use and 20% street. It regularly sees red line and and I'm pushing a mild 400rwhp. I know it's not long term use, but I chose PB1117N because of all the good reviews it had over OEM from guys who were in my HP range. Not sure if that helps, but you get the idea.
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Old 06-15-2018, 02:59 PM
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I sell the PowerBonds, and they seem to be a sturdy product...if that's the way you roll, do so with confidence.

We didn't sell PB when I did mine, or I might have gone that way instead of the ATI.

Either way, 100% improvement over the OE.
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Old 06-15-2018, 03:01 PM
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Originally Posted by ArmchairArchitect View Post
A local shop that specializes in LS motors told me this particular OEM-style Powerbond unit will fail just like the GM OEM one since it's constructed the same way (with rubber instead of being fully metal). And that there's a different Powerbond "race" balancer which won't ever fail.

Has anyone used this PB1117N Powerbond OEM-style balancer over a long period of time/miles and can comment on how it holds up? I'd rather save the money and get this Powerbond PB1117N OEM style rather than the race version if it's good enough and won't fail.
A buddy of mine was told by andy at A&A that tons of guys run this HB with their blowers, pinned, with good results.
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Old 06-20-2018, 02:42 PM
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I recently went through this myself. If you're interested in a newbie's experience, one of my threads is below.

https://www.corvetteforum.com/forums...per-fix-3.html
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Old 06-20-2018, 08:43 PM
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Originally Posted by 2k2wranglerx View Post
I have the powerbond sitting here and i bought a pin jig from a guy... but now i'm questioning how i want to do this...

i was going to pin through the front and use the PB1117N i have here...

but now i'm contemplating going with the summit one

https://www.summitracing.com/parts/sum-c2501/overview/

and using the ATI pin kit through the side of the snout...

Any thoughts? i'm eventually going FI but probably just staying 6 rib
the Q/A on that HB have a lot of strange feedback saying it wonít fit kn ďstockĒ corvettes.... I feel thatís vague? Others say it fit on their 99 or 00.

any confirmation this will fit on a 99 FRC?
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Old 06-21-2018, 09:26 AM
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Originally Posted by Arvalo View Post


the Q/A on that HB have a lot of strange feedback saying it wonít fit kn ďstockĒ corvettes.... I feel thatís vague? Others say it fit on their 99 or 00.

any confirmation this will fit on a 99 FRC?
i can't address that specifically but what i did see is they're an 8 rib pulley and you only use 6...
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Old 06-21-2018, 11:06 PM
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Originally Posted by Arvalo View Post


the Q/A on that HB have a lot of strange feedback saying it wonít fit kn ďstockĒ corvettes.... I feel thatís vague? Others say it fit on their 99 or 00.

any confirmation this will fit on a 99 FRC?
Local LS shop did the Summit SFI 8 rib on my 99 without issue. They run that balancer on all their motors. So far, so good.
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Old 06-21-2018, 11:53 PM
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Originally Posted by MikeyMcFly View Post
Local LS shop did the Summit SFI 8 rib on my 99 without issue. They run that balancer on all their motors. So far, so good.
right on! God to hear it. Iím looking to get my FRC relatable enough to take on an 8-9 hour road trip to see my folks and since the live about an hour from the Tip of the Dragons tail I kinda wanna check it out. I think with my Vette being close to 100k miles itís probably a good idea to change it out first.
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