balancing flywheel
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
balancing flywheel
Ok so I a finalizing my engine swap. It should be here any day now.
Next issue.
The engine that is coming out is an internal balanced one. The new engine is a proper 454 external balanced one so my current flywheel wont work. Can I get my current flywheel balanced or do I need to get a new one.
Next issue.
The engine that is coming out is an internal balanced one. The new engine is a proper 454 external balanced one so my current flywheel wont work. Can I get my current flywheel balanced or do I need to get a new one.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
they used to make a counter weight adapter, but i would suggest getting the right flywheel. You do not want to be chasing vibration issues for the next # of years.
69VETT
69VETT
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
flywheels arent that expensive, i just wanted to make sure than an off the shelf 454 flywheel will work.
i am guessing 168 tooth right?
big question though is
which one to get
autozone has oem replacement. it weighs 6 lbs.
summit has them that weigh an average of 30 lbs
what is better, is there a difference.
thanks
Last edited by baxsom; Jul 27, 2009 at 08:19 PM.
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I'd be a bit cautious of the AZ 'wheel at 6 lbs. GM's lightweight BB 'wheel was 12 or 15 lbs (don't remember which).
The big difference you'll feel. Car will be a bit harder to get rolling with a lightweight flywheel, but will spin up faster. Just the exact opposite with a heavy one. A light one will allow the engine to shut off easier with a higher idle speed (important note if you're running a cam that likes to idle around 1000). The inertia of the heavy one might cause some "run-on".
I'd also get new ARP bolts for both the clutch and the flywheel to crank.
The big difference you'll feel. Car will be a bit harder to get rolling with a lightweight flywheel, but will spin up faster. Just the exact opposite with a heavy one. A light one will allow the engine to shut off easier with a higher idle speed (important note if you're running a cam that likes to idle around 1000). The inertia of the heavy one might cause some "run-on".
I'd also get new ARP bolts for both the clutch and the flywheel to crank.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
Are you willing to bet your legs, life and car.
that AZ knows how to spell metallurgical Analysis,
much less what is means ?
Spend the money and buy a minimum of a GM or performance Flywheel.
69VETT
that AZ knows how to spell metallurgical Analysis,
much less what is means ?
Spend the money and buy a minimum of a GM or performance Flywheel.
69VETT
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
well i am sure that autozone itself can barely determine its butt from a whole in the ground but the Pioneer flywheel has been recommended on this site a few times which is why i was looking at it. it is listed as oem replacement which is why i was questioning it. it says that the shipped weight is 6lbs. that just doesnt seem right.
its not really the money, it is which part is correct. i want an oem replacement. just like a new off the assembly line one back when the car was new. i dont want a performance one, i dont want a "lightweight" one. i want the right one.
its not really the money, it is which part is correct. i want an oem replacement. just like a new off the assembly line one back when the car was new. i dont want a performance one, i dont want a "lightweight" one. i want the right one.
Last edited by baxsom; Jul 27, 2009 at 10:03 PM.
Drifting
Joined: Sep 2004
Posts: 1,625
Likes: 4
From: Miami FL
I have Chris's old car "Killer" and it has a 454 with an external crank balancer that allows me to run the L88 internally balanced 10.5" steel OEM GM flywheel that is 14.4lbs. It works fine with no vibration problems. It looks like a small iondized (sp?) arm piece that extends from the crank and does not weigh that much at all. The engine screams to rev to 6,500rpms pinning ya in the back of your seat almost making the shifts come too quick since its so rev happy
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Race Director
Joined: May 2005
Posts: 10,674
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From: Millington Illinois
St. Jude Donor '08-'09
well i am sure that autozone itself can barely determine its butt from a whole in the ground but the Pioneer flywheel has been recommended on this site a few times which is why i was looking at it. it is listed as oem replacement which is why i was questioning it. it says that the shipped weight is 6lbs. that just doesnt seem right.
its not really the money, it is which part is correct. i want an oem replacement. just like a new off the assembly line one back when the car was new. i dont want a performance one, i dont want a "lightweight" one. i want the right one.
its not really the money, it is which part is correct. i want an oem replacement. just like a new off the assembly line one back when the car was new. i dont want a performance one, i dont want a "lightweight" one. i want the right one.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 121
From: Millington Illinois
St. Jude Donor '08-'09
Then you don't want the 30# summit. It is a flywheel for a manual trans. The lightweight flywheels everyone is referring to on this post are manual trans flywheels. You want a 454 flexplate. Pioneer is not a bad option. I got a brand new one here on the shelf but it is for internal balance.
Last edited by 63mako; Jul 27, 2009 at 11:24 PM.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,443
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Ok so I a finalizing my engine swap. It should be here any day now.
Next issue.
The engine that is coming out is an internal balanced one. The new engine is a proper 454 external balanced one so my current flywheel wont work. Can I get my current flywheel balanced or do I need to get a new one.
Next issue.
The engine that is coming out is an internal balanced one. The new engine is a proper 454 external balanced one so my current flywheel wont work. Can I get my current flywheel balanced or do I need to get a new one.
IMO - Anybody that thinks that externally balanced is the way build a motor doesn't understand motor basics or is just plain cheap!
Last edited by gkull; Jul 28, 2009 at 12:02 AM.
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
if that were the case shouldnt it be balanced with the torque converter full of fluid bolted to the wheel as well.
Le Mans Master
Joined: Nov 2008
Posts: 5,691
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From: columbus oh
if you have a gen 6 mill, then the flywheels and flexplates are SPECIFIC to that engine only.....the gen 6 has a one piece rear seal.....gm has them along with RAM flywheels, or flexplates......good luck
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
When you buy an engine does it come with a TC bolted to it? Or is the TC a separate item with a neutral balance (which means that it is balanced on it's own)
