Harmonic Balancer which one

Tech discussions on the L77 6.0L V8.
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Harmonic Balancer which one

Post by Groundczero » Mon Mar 11, 2019 5:25 pm

So, I am seeing what people have used for Harmonic Balancer replacements, have not heard good things about the GM one not sure what people have done with the Dayco/Powerbond.

https://www.rockauto.com/en/catalog/che ... ancer,5512

I am leaning towards the PBU1117SS10 since I have used similar 10% under drive w/o issue on LS and figured that will not be a problem with the big alternator on these cars.

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Re: Harmonic Balancer which one

Post by lastcall190 » Mon Mar 11, 2019 5:34 pm

I used the PB1117N as a replacement when I had the DOD deleted. Stock one was trash.

I can't comment on using an underdrive pulley as I never have used one on my LS cars.

2012 Caprice
!DOD : LS9 Cam : Pat G : Magnaflow : VCM

2008 CVPI
168k and going strong

Posts: 27
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Re: Harmonic Balancer which one

Post by chipperdoodles » Tue Mar 12, 2019 1:29 pm

Replaced my balancer with this one from summit: https://www.summitracing.com/parts/sum-c2501. Pretty happy with it and no problems so far, the price point is nice for an sfi rated balancer.

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