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Old 02-05-2004, 08:32 PM   #1 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?


Curious if anyone has dealt with upgrading a flywheel from a 157 tooth (approx. 13.3 OD ring gear) to a 164 tooth (approx 14.25 OD ring gear)?

I would like to do this upgrade on a 1967 Mustang with a 1968 302/347 block and a toploader trans. I expect that the bellhousing and/or starter will have to be upgraded also, but the info I have gathered so far does not mention a bellhousing or starter change. I assuming the increased size of a 164 tooth would be too much for starter gear to mesh into? Is there a correction for this? ...hopefully, a not too costly answer.

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Old 02-05-2004, 09:09 PM   #2 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

you do have to change the bellhousing as the starter location is moved out about 1/2" from the location on the 157 tooth bell. the starters interchange.
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Old 02-05-2004, 09:15 PM   #3 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

Just a silly question ...


I presume you are doing this in order to accomodate a larger clutch??



I agree with rbohm ... A new bell will be in order for sure ... starter no different at all


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Old 02-05-2004, 09:31 PM   #4 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

And block plate - to match the bell.
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Old 02-05-2004, 09:49 PM   #5 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

I'm with MonsterMach.How is this an upgrade?
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Old 02-05-2004, 10:06 PM   #6 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

ooops ... I also agree with ckelly ...

How'd I miss that
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Old 02-06-2004, 01:12 AM   #7 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

I was planning to "upgrade" from a 10.5" to an 11" clutch, hopefully add more surface area with less foot pressure??? Looks like I will need a new bellhousing and block plate.

Does Lakewood offer a 302/347 steel bellhousing for an early (6-bolt & made for a toploader) 164 tooth size?

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Old 02-06-2004, 09:49 AM   #8 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

Hi,
Im putting a 302 with a 164 tooth flexplate in my 62 Ranchero.
I want a C4 to go with that engine, how can I tell if a bellhousing and a blockplate is made for a 157 or 164 tooth flexplate? Partnumber, castnumber or....

Regards,
Jalle

By the way, that engine came with a 160 tooth flywheel, Ive never heard of that before?
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Old 02-06-2004, 12:07 PM   #9 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

From my experience, I would say that most early V8 Mustangs with the small aluminum bellhousing came with 160 tooth flywheels and flexplates. The 157 tooth type is interchageable with the 160 tooth variety. I'm not convinced that the starter drives are interchageable between the small and large flywheels, but I can't say for sure. There are some funny matchups with those combinations. As an alternative, you may want to consider what I did with the Fastback. I used a 5.0 type billet 157 tooth flywheel that was rebalanced to 28 oz. This allowed me to use the 289 small aluminum bell, and the late model 5.0 "dowel located" 10.5 Centerforce DF diaphram clutch. This makes a smaller package and less weight (static and inertial) than the larger components. I don't think gripping strength is an issue.
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Old 02-06-2004, 07:06 PM   #10 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

All small bellhousing c-4 bolt to the case using the 7 pump bolts. Large bell c-4's bolt to the case with 5 separate bolts.
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Old 02-07-2004, 09:42 AM   #11 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

I did the same thing you want to do. I put a 164 tooth 351W fly-wheel with a 11" clutch on the '67 Cougar with a 289.

You need a stock bell housing for a 351, I believe they were the only SBF with a 164 tooth fly-wheel.

Or you can get a Lakewood bell housing for the trans you want. The Lakewood will work for either the 157 or 164 tooth fly-wheel. The Lakewood starter location is drilled for either fly-wheel.
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Old 02-09-2004, 05:42 AM   #12 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

Quote:
"All small bellhousing c-4 bolt to the case using the 7 pump bolts. Large bell c-4's bolt to the case with 5 separate bolts."

Are these the same C4 refered to as "pan-filled"?
How about the C5 (lock-up C4) from the early 80, are they "pan-filled" and 164 tooth?
Is it possible to use a lock-up C5 and put a non lock-up converter in it?
In Sweden the C5 is easier to find than the "pan-filled" C4.

This is starting to get complicated!
Regards Jalle
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Old 02-09-2004, 08:07 AM   #13 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

Some smallblocks other than the 351 had the big flywheel.I have one from a 66 fairlane with a 289.Possibly look for big cars with small blocks and manual trannies(which would be somewhat rare)
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Old 02-09-2004, 12:05 PM   #14 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

I used the early v8 bronco bellhousing and 11" flywheel with a zoom mu2030-1 diaphram clutch for my 351w-393 stroker.the bellhousing is cast iron and heavy but fit right up to my toploader.
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Old 02-09-2004, 06:50 PM   #15 (permalink)
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Flywheel Upgrade from 157 to 164 tooth?

tURBO66, I believe the c-5 is the same internally as a c-4 except for the valve body. You should be able to bolt an aftrmarket valve body on and be good to go. You would also need a standard converter. On the case fill vs. pan fill issue, I have seen pan filled c-4's with the small bellhousing and the large. Have only seen small bell c-4 in case fill though.
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