Harmonic Dampner part #'s
Thread Starter
Instructor
Joined: Aug 2019
Posts: 133
Likes: 9
Harmonic Dampner part #'s
2009 LS3 Base
Im not having issues but Im changing cams and figured id replace the dampner and pin it while there.
Summit has a balancer
However when you look @ info it EXCLUDES 2009 and up. this baffled me because ATI has one that fits C5- C6 LS1-2-3 same part
So I called Summit and the guy was also baffled. he thinks it could be an erroneous entry in their database listing
which brings me to my question.
IS anyone with a 2009 and UP LS3 running the summit brand aftermarket balancer? and what was the part number?
I'm fine with suggestions for other balancers but I am specifically trying to find a way to run the summit part. I know many are going to say .. Inovators west part # xxxxxxx zero probelms 10 years.
I get that ATI and powerbond etc make good units.
thanks in advance!
Im not having issues but Im changing cams and figured id replace the dampner and pin it while there.
Summit has a balancer
Summit Racing SUM-C2501 - Summit Racing® Bracket Racer SFI Harmonic Dampers
However when you look @ info it EXCLUDES 2009 and up. this baffled me because ATI has one that fits C5- C6 LS1-2-3 same part
So I called Summit and the guy was also baffled. he thinks it could be an erroneous entry in their database listing
which brings me to my question.
IS anyone with a 2009 and UP LS3 running the summit brand aftermarket balancer? and what was the part number?
I'm fine with suggestions for other balancers but I am specifically trying to find a way to run the summit part. I know many are going to say .. Inovators west part # xxxxxxx zero probelms 10 years.
I get that ATI and powerbond etc make good units.
thanks in advance!
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,150
From: SW Florida
2021 C6 of the Year Finalist - Modified
Here is the proven balancer that fits the LS3 wet sump engine
Powerbond Race Performance HB . . P/N: PB1117SS
https://www.summitracing.com/parts/pbb-pb1117ss
Powerbond Race Performance HB . . P/N: PB1117SS
https://www.summitracing.com/parts/pbb-pb1117ss
Melting Slicks
Joined: Oct 2015
Posts: 3,299
Likes: 769
From: Mead Wash
2020 C6 of the Year Finalist - Modified
C6 of Year Finalist (appearance mods) 2019
Balancer
Here is the proven balancer that fits the LS3 wet sump engine
Powerbond Race Performance HB . . P/N: PB1117SS
https://www.summitracing.com/parts/pbb-pb1117ss
Powerbond Race Performance HB . . P/N: PB1117SS
https://www.summitracing.com/parts/pbb-pb1117ss
Also available at Rock Auto a bit cheaper. Note. The picture of the balancer on their website has not been updated as to what you will receive. I just completed mine.
Last edited by 2008 Corvette; Feb 5, 2021 at 01:18 PM.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
I am not running a Summit balancer but an ATI - if it helps at all, their posting is probably just an anomaly -
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
Last edited by madmatt9471; Feb 5, 2021 at 10:03 PM. Reason: Added balancer bolt information
Thread Starter
Instructor
Joined: Aug 2019
Posts: 133
Likes: 9
I am not running a Summit balancer but an ATI - if it helps at all, their posting is probably just an anomaly -
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
Cruising
Joined: Feb 2022
Posts: 12
Likes: 3
From: Longview, WA
I am not running a Summit balancer but an ATI - if it helps at all, their posting is probably just an anomaly -
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
Wet Sump - LS1/2/6/3 all take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the shorter of the two stock or ARP
Dry Sump - LS3/7 take the same balancer stock diameter, underdrive, overdrive, or otherwise - balancer bolt is the longer of the two stock or ARP
Thanks,Matt
So I bought a Summit C2501 harmonic balancer from a friend with an LS2 wet sump. New in box. It is written that the LS2 and LS3 balancers are interchangeable. However, now I'm finding out that balancers are different for Dry Sump systems. My 2011 Grand Sport is a 6 speed with a dry sump. Any advice would be greatly appreciated. Hate to tear it apart only to find out it wont fit.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
So I bought a Summit C2501 harmonic balancer from a friend with an LS2 wet sump. New in box. It is written that the LS2 and LS3 balancers are interchangeable. However, now I'm finding out that balancers are different for Dry Sump systems. My 2011 Grand Sport is a 6 speed with a dry sump. Any advice would be greatly appreciated. Hate to tear it apart only to find out it wont fit.
You must either use an LS3 or LS7 "Dry Sump" balancer and balancer bolt - you cannot put a square peg in a round hole as an example!
Thanks,Matt
Last edited by madmatt9471; Mar 3, 2024 at 11:22 AM. Reason: correct wording "Wet Sump to Dry Sump"
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Instructor
Joined: May 2022
Posts: 219
Likes: 77
So I bought a Summit C2501 harmonic balancer from a friend with an LS2 wet sump. New in box. It is written that the LS2 and LS3 balancers are interchangeable. However, now I'm finding out that balancers are different for Dry Sump systems. My 2011 Grand Sport is a 6 speed with a dry sump. Any advice would be greatly appreciated. Hate to tear it apart only to find out it wont fit.
Do you want to sell the c2501?