Engine Mods Outrageous Builds, High-Horsepower Modifications, strokers, and big cams for the Corvette

454 Balance weights?

Thread Tools
 
Search this Thread
 
Old Jan 13, 2003 | 07:16 PM
  #1  
00fxd's Avatar
00fxd
Thread Starter
Melting Slicks
20 Year Member
 
Joined: May 2002
Posts: 2,225
Likes: 44
From: Penticton B.C. Canada
Default 454 Balance weights?

There is a manufacturer of a bolt on balance weight that adapts the neutral balance flywheel [manual shift] to work on a 454 and another to work on a sb400. Has anyone used these or know anyone that has? Opinions?
Reply
Old Jan 14, 2003 | 01:08 PM
  #2  
norvalwilhelm's Avatar
norvalwilhelm
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Default Re: 454 Balance weights? (00fxd)

Yes there are bolt on weights for the 454 and the 400 but you can take a neutral balanced 427 flywheel and have it lightened on one side for the 454. I bought a steel flywheel and had that done.
As for the bolt on weights I buy parts from a stock car company and in their catalogue they have these weights. It is a offset weight on a plate that gets bolted between the engine and flywheel.
I could get the name off the catalogue and post it if you want. The catalogue is at home.
Reply
Old Jan 15, 2003 | 01:12 AM
  #3  
00fxd's Avatar
00fxd
Thread Starter
Melting Slicks
20 Year Member
 
Joined: May 2002
Posts: 2,225
Likes: 44
From: Penticton B.C. Canada
Default Re: 454 Balance weights? (norvalwilhelm)

Thanks norval; It would cost a lot to balance the 427 flywheel. I actually thought you had to add weight [mallory metal, expensive]. I'm kinda hopin' this weight idea works o.k. and not be too hokey. Sounds alright for a street engine, but I would like to hear some actual use experiences or some professional opinions before I go for it. Yes, I would like you to find out for me the name of catalogue if you would.
Thanks, Frank.
Reply
Old Jan 15, 2003 | 08:02 AM
  #4  
norvalwilhelm's Avatar
norvalwilhelm
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Default Re: 454 Balance weights? (00fxd)

Why does it cost so much to make a neutral balanced flywheel into a offset balanced 454 flywheel? All it takes is about 20 shallow holes drilled to lighten up one side. I have done this myself at home on the work bench by having a stock 454 ring gear and a small bearing and adaptor clamped to the bench.
You put the stock 454 ring gear on the adaptor on the bench and mark where the weight should go then transfer this location to the neutral flywheel and start drilling exactly opposite this location.
With careful checking you can get the flywheel to perfectly match the ring gear or flex plate.
Also any balance shop should be able to do this easily
No metal added just removed.
I will post the company tomorrow morning that sells offset weights for 454's and 400's.
Reply
Old Jan 15, 2003 | 10:35 PM
  #5  
00fxd's Avatar
00fxd
Thread Starter
Melting Slicks
20 Year Member
 
Joined: May 2002
Posts: 2,225
Likes: 44
From: Penticton B.C. Canada
Default Re: 454 Balance weights? (norvalwilhelm)

Thanks again norval. Like I said, I thought you had to add metal, but your method is something I will definately look into.
Reply
Old Jan 16, 2003 | 08:02 AM
  #6  
norvalwilhelm's Avatar
norvalwilhelm
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Default Re: 454 Balance weights? (00fxd)

Balance plates to use a normal neutral flywheel on a 400 or 454 are sold by Coleman Machine Inc. N -1597 US-41, Menominee, Mi 49858. Phone 906-863-7883. Part No for the 454 is 399-101 cost $24.25.
This company stocks part for Nascar and they have a very interesting catalogue of race parts.
This plate sandwiches between the crank and flywheel. It is a precision fit and can only go on one way . It is a offset weight.
Good luck but I still would go with a lightened 427 flywheel
Reply
Old Jan 18, 2003 | 02:48 AM
  #7  
00fxd's Avatar
00fxd
Thread Starter
Melting Slicks
20 Year Member
 
Joined: May 2002
Posts: 2,225
Likes: 44
From: Penticton B.C. Canada
Default Re: 454 Balance weights? (norvalwilhelm)

Thanks again norval. I've now got all the info I need to make my choice.
Frank.
Reply

Get notified of new replies

To 454 Balance weights?





All times are GMT -4. The time now is 02:33 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE