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Old 12-21-2004, 12:07 PM
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use of aluminum flywheel on the street..thoughts

Qurious, I have an f-150, been thinking about swapping the I-6 for a v-8, that I already have, I was also thinking about using an aluminum flywheel with the stock manual tranny.

Its a street only vehicle, anyone run into any trouble or know of a good reason not to use an aluminum flywheel for a street truck application (no towing or hauling)?

thanks

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Old 12-21-2004, 02:02 PM
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The aluminum flywheel will rev faster, but it doesn't hold the energy you'll need for a heavy vehicle.
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Old 12-21-2004, 02:08 PM
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aluminum flywheel

Even though I have a 10 lb aluminum flywheel for 289/302/and 351 C &W, I dont recommend using an aluminum flywheel in a street driven pickup. The reason is that with the reduced weight, you will lose the centrifical force generated by the heavier flywheel, which makes driving away from stop signs at low engine speeds possible. The heavier flywheel is what helps keep the inertia built up in your rotating assemly, making liesurely starts from stop lights possible. With the aluminum, you would probably have to rev up your engine more and feather the clutch some to get moving.

MI2600 is right. The advantage to aluminum flywheels are they they allow your engine to rev faster as well as drop off rpm quicker.

Last edited by Max Keith; 12-21-2004 at 02:08 PM.
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Old 12-21-2004, 02:10 PM
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Appreciate the replies...

...well max keith if your gonna talk me out of buying your flywheel...just kidding...makes sense....

someone wouldn't have a stock flywheel laying around, resurfaced and priced right (aka cheap) would they? (351w)
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Old 12-21-2004, 02:16 PM
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flywheel

Sorry, I sold my iron flywheel last spring.
I would go to your local salvage yard and get one. It will probably be cheaper in the long run. You can run a dial indicator on the face to see if its good and flat. Flywheel warpage doesnt seem to be a problem with Small block flywheels, so if anything, it might need resurfacing.

I do have a stick shift flywheel for a 400M, but thats not much help for a small block.
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Old 12-23-2004, 07:01 AM
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An aluminum flywheel will work very well on the street.
You will have extra available horsepower due to the fact you aren't trying to turn a large mass of cast iron flywheel.
Plus the engine will rev quicker.
No detrimental affects will be noticed on the clutch.
Available documentation to prove my point if necessary.
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Old 12-23-2004, 08:37 AM
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aluminum flywheel

We are talking about a small displacement, basically stock engine in a 5000 lb truck, not a big block in a light weight car.

I dont recall anyone saying there would be any detrimental causes to the clutch. The difference in convenience and driveability was the topic on the aluminum flywheel.
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Old 12-23-2004, 08:46 AM
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sure ..on the ice of saskatchewon, youd never notice .
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Old 12-23-2004, 10:28 AM
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Re: use of aluminum flywheel on the street..thoughts

Quote:
Originally posted by 357f-150
Qurious, I have an f-150, been thinking about swapping the I-6 for a v-8, that I already have, I was also thinking about using an aluminum flywheel with the stock manual tranny.

Its a street only vehicle, anyone run into any trouble or know of a good reason not to use an aluminum flywheel for a street truck application (no towing or hauling)?

thanks
I don't read convenience and driveability here.
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Old 12-23-2004, 11:13 AM
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convenience and driveablity

Take a good look at the vehicle hes driving. Hes planning to drop a stock or near stock small block in the truck.

We are not talking about running a mega engine here, or looking for the inth in acceleration. If power and acelleration are the order of the day, there are far more convenient and less expensive ways to get it than with an aluminum flywheel. Aluminum flywheels are run on the street everyday, but for his application, its just not all that practical.
Its just not a necessary option. He was asking if there were any reasons why he shouldnt run an aluminum flywheel and I gave him a couple.
Ive tried them on the street, myself, and wound up going back to stock steel flywheels just for the reasons I mentioned in my previous posting. Stop and Go driving being the biggest reason.
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Old 12-23-2004, 12:06 PM
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Well he doesn't say what size engine is going in to it.
Just that it's a V8.

Anyway. nuff said.
I'm sure there are larger concerns in the world so lets just agree to disaree.
Hm. No beer icon.
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Old 12-23-2004, 12:10 PM
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no beer icon

357F-F150 and I have discussed this swap on other threads, so I guess that gives me some inside info on engine etc.
At any rate, raise a toast with your next LeBlatt!
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