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2006 C6 - Harmonic balancer replacement

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Old Jul 7, 2017 | 10:39 AM
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Default 2006 C6 - Harmonic balancer replacement

I bought an aftermarket from Jegs but they are all 25% under driven which will require different size belts. I didn't notice that detail when buying.
I really just wanted an aftermarket since everyone on C6 tech says GM harmonic balancers are no good on LS motors.

I didn't want to go away from stock belts (how to find correct size with Jegs balancer?). Should I just put AC Delco back on.
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Old Jul 7, 2017 | 11:58 AM
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Send it back and get one of the following;

https://www.summitracing.com/parts/s...model/corvette
https://www.summitracing.com/parts/t...model/corvette
https://www.summitracing.com/parts/a...model/corvette

Do NOT put an AC Delco unit back on there.

Last edited by jaredtxrx; Jul 7, 2017 at 11:58 AM.
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Old Jul 7, 2017 | 12:45 PM
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Thanks Jared.




Originally Posted by jaredtxrx
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Old Jul 7, 2017 | 08:40 PM
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Napa carries a huge selection of belts, I always buy several and return the ones that don't fit after an ATI install.
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Old Jul 8, 2017 | 04:53 AM
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Power bond sfi unit. Do not put an under drive hb on an ls2
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Old Jul 8, 2017 | 07:23 PM
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Originally Posted by CMY SIX
Power bond sfi unit. Do not put an under drive hb on an ls2

While I went with and ATI, the Power Bond is noted many times as being a quality unit. I do agree 100% with not putting an under drive on. I just can't understand trying to gain a few horsepower at the cost of spinning water pumps, alternators, etc. slower. When I was chatting with the performance shop that put mine on, he asked if I wanted and under drive...I said no and he said smart choice even though many want it.
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Old Jul 11, 2017 | 07:03 PM
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Originally Posted by jkirk1
While I went with and ATI, the Power Bond is noted many times as being a quality unit. I do agree 100% with not putting an under drive on. I just can't understand trying to gain a few horsepower at the cost of spinning water pumps, alternators, etc. slower. When I was chatting with the performance shop that put mine on, he asked if I wanted and under drive...I said no and he said smart choice even though many want it.
LS2's have a nasty habit of breaking timing chains with an underdrive
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Old Jul 12, 2017 | 12:44 PM
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stock size ATI uses stock size belts
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Would someone explain underdrive to me?
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Old Jul 21, 2017 | 08:37 AM
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Originally Posted by jessieh2
Would someone explain underdrive to me?
https://en.wikipedia.org/wiki/Underdrive_pulleys
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Old Jul 21, 2017 | 08:45 AM
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Originally Posted by jaredtxrx
Thank you!
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