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I am looking at getting a new steel Flywheel from summit.
http://store.summitracing.com/egnse...94908331+4294863728+4294924702+115+4294753766

I am going to use the centerforce duel friction clutch with it.

http://store.summitracing.com/partdetail.asp?autofilter=1&part=CTF-DF490030&N=700+115&autoview=sku

Summit lists both a 164 and a 157 tooth flywheel for this car. Which one do I get and why did they use both sizes ?

The car is a 66 original 4 speed car.
I am going to be using a toploader 4 speed. The transmission in it now is a T-10 and that is the bell housing I am going to be using with the toploader transmission.
 

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As far as I know, all 65/66 v8 Mustangs came with 160/157 tooth flywheels balanced to the 28 oz spec. The 160 and 157 tooth are the same and use the smaller aluminum bellhousing.
 

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Hey PM me. I have a 164 tooth Steel Centerforce Flywheel with less than 500 miles on it. Came out of my 65 F/B 289 4-spd. It is a 28oz version

Dave
 

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Scode68 said:
Depends on which bell housing you have. Do you have the number cast into it?

Exactly, you need to match the bellhousing and block plate. Here's a pic with some dimensions that might help.



 

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Thought the difference was in the clutch size , 10 or 11 inch ,157 for the 10 and 164 for the 11 . Best thing to do is count the teeth on the one you have and match it .
 
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