C-4 Flexplate

novamastr · January 31st, 2008, 10:42 AM

I counted the teeth on my flexplate and it is 164 teeth not 157.Is there a way to tell if it is 50 oz or 28 oz.I cant find any #'s on it.

woody1 · January 31st, 2008, 11:01 AM

28. no c4's were behind a 50 oz small block

novamastr · January 31st, 2008, 11:07 AM

So would an AOD flexplate work?

Iwannagofast · January 31st, 2008, 11:58 AM

the flexplates off the 5.0 cars should all be 50 oz so im gona say it wont work....351s have 28 oz though

novamastr · January 31st, 2008, 12:16 PM

I need a 50 oz. flexplate.It is a 93 5.0 motor.The c-4 came off of a 1980 5.0.

ryans88gt · January 31st, 2008, 01:42 PM

Originally Posted by novamastr

I need a 50 oz. flexplate.It is a 93 5.0 motor.The c-4 came off of a 1980 5.0.

So? Buy a 50 oz flexplate with 157 teeth and get a bellhousing for a C-4 in a foxbody...

novamastr · January 31st, 2008, 01:53 PM

Originally Posted by ryans88gt

So? Buy a 50 oz flexplate with 157 teeth and get a bellhousing for a C-4 in a foxbody...

So this bellhousing won't fit in my 90 LX?

ryans88gt · January 31st, 2008, 01:57 PM

Originally Posted by novamastr

So this bellhousing won't fit in my 90 LX?

I'm not sure, you can try, but I think the 164 tooth flywheel bellhousing is too big. remember to check for exhaust and starter clearance.

If you can get it to fit, a flexplate from a 86-93 AOD car should work as they are 164 teeth and 50 OZ

novamastr · January 31st, 2008, 02:15 PM

Originally Posted by ryans88gt

I'm not sure, you can try, but I think the 164 tooth flywheel bellhousing is too big. remember to check for exhaust and starter clearance.

If you can get it to fit, a flexplate from a 86-93 AOD car should work as they are 164 teeth and 50 OZ

Thats what I wanted to know.I just wasn't sure if the AOD and C-4 torque converter bolt pattern was the same.

ryans88gt · January 31st, 2008, 02:54 PM

Originally Posted by novamastr

Thats what I wanted to know.I just wasn't sure if the AOD and C-4 torque converter bolt pattern was the same.

Yeah, but I think there might some issues with how deep the flexplate comes off the crank. Sometimes the C-4 converter isn't fully supported by the pilot of the crank and the starter is too far away. Make sure you compare the new flexplate depth to the original. Also, mock up the bellhousing with the exhuast and starter to make sure it will all fit.

novamastr · January 31st, 2008, 03:03 PM

Originally Posted by ryans88gt

Yeah, but I think there might some issues with how deep the flexplate comes off the crank. Sometimes the C-4 converter isn't fully supported by the pilot of the crank and the starter is too far away. Make sure you compare the new flexplate depth to the original. Also, mock up the bellhousing with the exhuast and starter to make sure it will all fit.

So I am probably better off looking for a 164t 50 oz C-4 Flexplate.Either that or I'll take all of it to the dump and search for an AOD!

January 31st, 2008, 10:42 AM	#1
novamastr Newbie Join Date: May 2007 Location: Orange city,Fl Posts: 47	C-4 Flexplate I counted the teeth on my flexplate and it is 164 teeth not 157.Is there a way to tell if it is 50 oz or 28 oz.I cant find any #'s on it. __________________ 91 LX coupe,GT40P heads,Steeda roller rockers,GT40 Intake,X303 cam,Cold Air Intake,Tremec T5

January 31st, 2008, 11:07 AM	#3
novamastr Newbie Join Date: May 2007 Location: Orange city,Fl Posts: 47	So would an AOD flexplate work? __________________ 91 LX coupe,GT40P heads,Steeda roller rockers,GT40 Intake,X303 cam,Cold Air Intake,Tremec T5

January 31st, 2008, 12:16 PM	#5
novamastr Newbie Join Date: May 2007 Location: Orange city,Fl Posts: 47	I need a 50 oz. flexplate.It is a 93 5.0 motor.The c-4 came off of a 1980 5.0. __________________ 91 LX coupe,GT40P heads,Steeda roller rockers,GT40 Intake,X303 cam,Cold Air Intake,Tremec T5

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January 31st, 2008, 11:01 AM	#2
woody1 Enthusiast Join Date: Nov 2006 Posts: 558	28. no c4's were behind a 50 oz small block

January 31st, 2008, 11:58 AM	#4
Iwannagofast Hardcore Enthusiast 1990 Mustang GT 9.39@76.09----1/8th mile Join Date: Feb 2007 Location: Arkansas Posts: 1,829	the flexplates off the 5.0 cars should all be 50 oz so im gona say it wont work....351s have 28 oz though

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