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Mustang Flywheel Tech Info (82-95 5.0L)

Posted 4/24/2015 by Landan Durham

Have you been searching for the correct flywheel for your 82-95 Mustang? Check out our flywheel guide for all of the answers!

FOLLOW: 79 93 mustang , fox body , fox body mustang , sn95 , sn95 mustang , driveline , flywheel

From the factory, your '82 to '95 Mustangs came with a ten inch clutch and was a fifty ounce imbalance flywheel. Which made it a very common upgrade to make the switch to a 10 and 1/2 inch clutch whenever you go to swap out the clutch. Now from '86 to '95, all the clutches were upgraded to the 10 1/2 inch version that we know today. All of your factory flywheels were cast iron, six bolt pattern, and also fifty ounce imbalance.


Balances & SFI

When you get into the realm of replacement flywheels, you do have a few options and it can be a little confusing. For starters, you have your stock style, cast iron replacement flywheels. However, when you get into the options from all of your aftermarket companies, you'll either have a billet steel, billet aluminum, or both in fifty ounce imbalance, twenty ounce, and even a complete zero neutral balance. Any factory engine or any rebuilt factory engine is going to take a 50 ounce imbalance flywheel. Another thing to remember is pretty much all of your aftermarket billet flywheels are going to be SFI approved. What is SFI? The SFI Foundation, Inc. (SFI) is a non-profit organization established to issue and administer standards for the quality assurance of specialty performance and racing equipment.

Any of your stroker motors or engines that have had custom balancing work done are typically going to take a twenty eight ounce imbalance, but it could use a zero neutral imbalance. You need to check with the shop that did your balance work or any of your machine work to find out what flywheel you need to order.


Flywheel Material

Now comes the next question, what materials do you want to use with what? Your cast iron flywheel, obviously, that's a great stock replacement even for mild bolt ons. If you're going to be visiting the track a bunch, doing a bunch of high RPM clutch dumps on sticky tires, probably not the best choice. You may want to go ahead and step up to a billet steel. The billet steel will also work great in a stock application if you just have to have the best of the best for your car.

Billet aluminum is suited well for the road course where you can have instant acceleration out of the corners. Not so great for drag racing, because you lose the inertia that you need to get the car moving right off the starting line. Not saying it would be a bad choice in the street car, but you will notice you take a little bit more clutch slip to get the car moving. Clutch types.

Any time you're going to be using a clutch that has a puck typeface, semi-metallic, ceramic, doesn't matter. If it's a puck type clutch, you're going to want to use either a billet steel or billet aluminum flywheel because a cast iron flywheel will just chew itself up.


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About the Video

Mustang Flywheel Tech Info (Fox 79-93)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2014-10-24
We know all too well how difficult and confusing it can be to match a flywheel with the appropriate clutch. However, we break down the pros and cons of cast iron, billet steel and billet aluminum pressure plates to guide you down the right path when making your purchase.
Transcript
I'm Jay Mack with latemodelrestoration.com and I wanted to take a few minutes to talk to you about the differences between 1982 to '95 five liter Mustang flywheels. From the factory, your '82 to '95 Mustangs came with a 10 inch clutch. Was a 50 ounce imbalance flywheel and it's a very common upgrade to make those a 10 and 1/2 inch whenever you go to swap out the clutch. Now from '86 to '95, all the clutches were upgraded to the 10 1/2 inch version that we know today. Factory flywheel was cast iron, and six bolt pattern, and also 50 ounce imbalance.

When you get into the realm of replacement flywheels, you do have a few options and it could be a little confusing. You have your stock style cast iron replacement from either 5.0Resto or Ford Racing. When you get into the options from all of your aftermarket companies, you'll either have a billet steel, billet aluminum, or both in 50 ounce imbalance, 28 ounce, and even a complete 0 neutral balance. That's where your confusion is going to come into play.

Any factory engine or any rebuilt factory engine is going to take a 50 ounce imbalance flywheel. Another thing to remember is pretty much all of your aftermarket billet flywheels are going to be SFI approved, and that way you don't have to worry about them coming apart, taking out your ankles.

Now what materials do you want to use with what? Your cast iron flywheel, obviously, that's a great stock replacement even for mild bolt ons. If you're going to be visiting the track a bunch, doing a bunch of high RPM clutch dumps on sticky tires, probably not the best choice. You may want to go ahead and step up to a billet steel. Now the billet steel will also work great in a stock application if you just have to have the best of the best for your car.

Billet aluminum is suited well for the road course where you can have instant acceleration out of the corners. Not so great for drag racing, because you lose the inertia that you need to get the car moving right off the starting line. Not saying it would be a bad choice in the street car, but you will notice you take a little bit more clutch slip to get the car moving. Clutch types.

Any time you're going to be using a clutch that has a puck typeface, semi-metallic, ceramic, doesn't matter. If it's a puck type clutch, you're going to want to use either a billet steel or billet aluminum flywheel because a cast iron flywheel will just chew itself up.

Any of your stroker motors or engines that have had custom balancing work done are typically going to take a 28 ounce imbalance, but it could use a 0 neutral imbalance. You need to check with the shop that did your balance work or any of your machine work to find out what flywheel you need to order. We have all of these available and in stock at latemodelrestoration.com. You can grab yours today.