Harmonic Balancer choice
Thread Starter
Pro
Joined: Dec 2011
Posts: 626
Likes: 15
From: Austin, TX
Harmonic Balancer choice
I just found out that my 74 L82 is running a 6 3/4" harmonic balancer, when the original has to be an 8" one.
I have a performance top end, but I don't intend to race the car so I don't know which one would be a better choice.
These are my candidates for now
https://www.summitracing.com/parts/pbb-pb1046st
https://www.summitracing.com/parts/sum-161358
Which one is more more convenient?
Feel free to post any other option you think is better, with a reasonable price, for a sunday driver who likes to rev the car sometimes.
I have a performance top end, but I don't intend to race the car so I don't know which one would be a better choice.
These are my candidates for now
https://www.summitracing.com/parts/pbb-pb1046st
https://www.summitracing.com/parts/sum-161358
Which one is more more convenient?
Feel free to post any other option you think is better, with a reasonable price, for a sunday driver who likes to rev the car sometimes.
Thread Starter
Pro
Joined: Dec 2011
Posts: 626
Likes: 15
From: Austin, TX
was on the L82 engines.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
bigger is like a flywheel effect and doesn't aid in torsional dampening
Instructor
Joined: Mar 2010
Posts: 162
Likes: 8
Maybe you should look to buying a Ferrari.
Thread Starter
Pro
Joined: Dec 2011
Posts: 626
Likes: 15
From: Austin, TX
As I said, I'm not looking to race the car or anything similar...I just want a dumper to properly absorb vibrations...simple as that.
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Instructor
Joined: Mar 2010
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Maybe 3x $ of the Summit ones you suggested, but, 4x the engineering!
Dollars rule!
Thread Starter
Pro
Joined: Dec 2011
Posts: 626
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From: Austin, TX
Instructor
Joined: Mar 2010
Posts: 162
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Just found this after a quick search on this forum.
https://www.corvetteforum.com/forums...i-rattler.html
https://www.corvetteforum.com/forums...i-rattler.html
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
Leave the 6 3/4" balance on there if it is in good shape......
Bigger is not better and when I rebuild a 350 the 8" goes in the round file. Not really sure what GM was thinking when they stuck that paperweight on there.
The 350 is neutral balance and has little harmonics although it does have some. It is really up to how well it is balanced internally.
This is a good place to save rotating weight......as the whole assembly is rather heavy to begin with.
Jebby
Bigger is not better and when I rebuild a 350 the 8" goes in the round file. Not really sure what GM was thinking when they stuck that paperweight on there.
The 350 is neutral balance and has little harmonics although it does have some. It is really up to how well it is balanced internally.
This is a good place to save rotating weight......as the whole assembly is rather heavy to begin with.
Jebby
Melting Slicks
Joined: Dec 2009
Posts: 3,235
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From: Thunder Bay
Thread Starter
Pro
Joined: Dec 2011
Posts: 626
Likes: 15
From: Austin, TX
I finally ordered the Power Bond.
Let’s see how it works. I will buy also a new timing cover seal in order to replace the existing one, because is leaking a bit
Le Mans Master
Joined: Apr 2001
Posts: 5,941
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From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
They make a good balancer. I bought one of the SFI ones for my 454. Real nice parts.