454 flywheel?

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Feb 9, 2020 | 01:00 AM

70rs/ss396

Thread Starter

Racer

Joined: Jul 2008

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454 flywheel?

What 168 tooth flywheel can you recommend for a 454? I want a Steel one.

Thank you

Feb 9, 2020 | 07:16 AM

2mnyvets

Racer

Joined: Jul 2015

Posts: 396

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From: Lehigh Valley Pennsylvania

I would NOT recommend the Summit billet flywheel. It ran out .011. Even though it was never used, Summit would not take it back since I had it for a few years. Cost me an engine rebalance.

Feb 9, 2020 | 07:22 AM

derekderek

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From: SW Florida.

What are you doing with the car? Driving it, or 1/4 mile? What rpm you gonna be turning? Cuz basic cast iron 100 buck stuff is just fine for most uses.

Feb 9, 2020 | 07:29 AM

70rs/ss396

Thread Starter

Racer

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Streetcar, 450-500 hp.

Feb 9, 2020 | 09:30 AM

jackson

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From: Unreconstructed, South Carolina

Quote:

Originally Posted by derekderek

What are you doing with the car? Driving it, or 1/4 mile? What rpm you gonna be turning? Cuz basic cast iron 100 buck stuff is just fine for most uses.

Quote:

Originally Posted by 70rs/ss396

Streetcar, 450-500 hp.

For this, agree iron e.g. brands LuK, Perfection, Pioneer

Feb 9, 2020 | 12:52 PM

derekderek

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From: SW Florida.

My favorite brand is GM...

Feb 9, 2020 | 01:34 PM

70rs/ss396

Thread Starter

Racer

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Cant find new GM ones for Mark 4, 454....or do you mean original ones?

Feb 10, 2020 | 12:02 PM

jackson

Le Mans Master

Joined: Sep 2001

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From: Unreconstructed, South Carolina

starting at $68

https://www.rockauto.com/en/parts/lu...,flywheel,5348

https://www.summitracing.com/parts/a...make/chevrolet

https://www.summitracing.com/parts/p...make/chevrolet

https://www.summitracing.com/parts/p...make/chevrolet

https://www.summitracing.com/parts/l...make/chevrolet

-add-
GM Discontinued pn 3993827 ... perhaps there's NOS ?

Last edited by jackson; Feb 10, 2020 at 12:19 PM.

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Feb 10, 2020 | 12:43 PM

TimAT

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From: Gladstone MO

C3 of Year Finalist (appearance mods) 2019

I'd spend the extra money for an SFI rated flywheel. Regardless.

Feb 10, 2020 | 02:14 PM

#10

70rs/ss396

Thread Starter

Racer

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This one comes at 33 or 25 lbs, which one to prefer?

https://www.summitracing.com/int/par...make/chevrolet

Feb 11, 2020 | 06:31 AM

#11

derekderek

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From: SW Florida.

Also there is no measurable diff between gen 4, 5 or 6 454 flywheels. But there are zillions of 454 flywheels out there for sale.

Feb 12, 2020 | 07:56 PM

#12

jackson

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From: Unreconstructed, South Carolina

Quote:

Originally Posted by 70rs/ss396

This one comes at 33 or 25 lbs, which one to prefer?

https://www.summitracing.com/int/par...make/chevrolet

lighter and / or smaller accelerate & decel Much more quickly-responsively ... heavier / larger carry more momentum

if you're used to running a heavy wheel, you may have to relearn if you go light & vice versa.

remember freshman physics?

Feb 12, 2020 | 09:29 PM

#13

bashcraft

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Joined: Jan 2006

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From: Butler Pa

Quote:

Originally Posted by TimAT

I'd spend the extra money for an SFI rated flywheel. Regardless.

It's your money, waste it how you like.

Feb 12, 2020 | 11:18 PM

#14

ronarndt

Drifting

Joined: Jul 2015

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From: Catlett VA

Quote:

Originally Posted by 70rs/ss396

This one comes at 33 or 25 lbs, which one to prefer?

https://www.summitracing.com/int/par...make/chevrolet

The high torque is what most people like about the 454. The heavier flywheel will give more torque. I like being able to start out in first gear with the 454 NOM in my 68 convert with the engine idling. No need to rev it up, due to the monster torque.

Feb 13, 2020 | 07:43 PM

#15

OldCarBum

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Joined: Mar 2016

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From: Napa Valley California

Are you building your 454 to be internally or externally balanced?
If you build it internally balanced you will also need to replace the stock harmonic balancer.
McLeod Racing makes several nice flywheels in lightweight, Midweight billet steel and stock weight.

Last edited by OldCarBum; Feb 13, 2020 at 07:46 PM.

Feb 14, 2020 | 10:32 AM

#16

CMD1

Advanced

Joined: Feb 2017

Posts: 74

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From: Villa Rica GA

I have run a repair shop for 40+and always run Luk complete clutch kits since the mid 90's.
Well made and competitively priced. Everything you could possibly needs comes in the kit.
In 20 years I have never had to pull one back out for problems.
Just my experience, they are a lot of good and bad products out there.
Used to be a tool like truck that came directly to my shop and handed the kits off to me from free back when they first started and had service territories, but I order now from Rock Auto.

Feb 16, 2020 | 12:46 AM

#17

70rs/ss396

Thread Starter

Racer

Joined: Jul 2008

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From What I have read about clutches im going with the mcleod super street pro clutch.

Feb 16, 2020 | 11:31 AM

#18

2mnyvets

Racer

Joined: Jul 2015

Posts: 396

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From: Lehigh Valley Pennsylvania

Quote:

Originally Posted by 70rs/ss396

From What I have read about clutches im going with the mcleod super street pro clutch.

That is the one I used. I didn't run it yet so I have no opinion, but it is the one shown in the picture (below) that had 10 grams removed. I believe this is about 2 oz-ins. Also, I don't understand what they are advertising ie 550 hp. I believe clutches transmit torque so the 550 hp doesn't mean much without an RPM. My guess is the BBCs with many modifications, are probably at the clutches limit

Last edited by 2mnyvets; Feb 16, 2020 at 11:39 AM.

Feb 16, 2020 | 11:37 AM

#19

2mnyvets

Racer

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Posts: 396

Likes: 101

From: Lehigh Valley Pennsylvania

Quote:

Originally Posted by 2mnyvets

That is the one I used. I didn't run it yet so I have no opinion, but it is the one shown in the picture (above) that had 10 grams removed. I believe this is about 2 oz-ins. Also, I don't understand what they are advertising ie 550 hp. I believe clutches transmit torque so the 550 hp doesn't mean much without an RPM. My guess is the BBCs with any modifications, are probably at the clutches limit

OOPs! I had the picture in a different post. Note the 5 drilled balance holes