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Flexplate

 
Falcon1281
New User
Posts: 5
Joined: 03/12
Posted: 03/17/12 09:39 PM

Am installing a 1990 Mustang AOD tranny, in a 1964 Falcon. Using a 1968, 302 small block. Want to know if I should use a 28 ounce flex plate or a 50 ounce.  

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pepsi1
New User
Posts: 36
Joined: 03/12
Posted: 03/17/12 10:26 PM

I would use whatever the 302 had or would have on it. It's the engine balance your manly concerend with.

Bob  

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waynep7122
User
Posts: 146
Joined: 10/09
Posted: 03/18/12 10:14 AM

this is what the 68 mustang 302 came with a C4 transmission...
157 tooth flywheel, 28 ounce inches imbalance..



this is what an 84 mustang/crown vic AOD transmission used.. it is NOT going to work with your motor... the balance will be way off.. this is what bob was talking about.. but..




164 teeth...    50 ounce inches out of balance..

the location the starter bolts up to the bell housing varies with the application...
so if you install a 157 tooth flywheel in an AOD transmission with the AOD bell housing and spacer plate.. the starter will NOT properly engage...

i know that there is a FLEX PLATE to go from a late model 5.0  with the 50 ounce weight to a C4.. you need to do your research.. and i will have a look around the  catalogs to see if anybody makes a flywheel for this swap ...  

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waynep7122
User
Posts: 146
Joined: 10/09
Posted: 03/18/12 03:37 PM

i was just looking around..

i did find this tidbit of info...

http://mustangsandmore.com/ubb/DanJonesC4AODswap.html

i bet this swap is covered in one of the 4 mustang magazine tech sections on this site...

the more i read.. the motor i want to pick up a matching later model 5.0 and swap it in .. as only a special damper needs to be used with the early timing cover to keep the early belt driven accessories working..  but then you get into a distributer situation..  with the oil pump drive and steel or iron gear..  

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waynep7122
User
Posts: 146
Joined: 10/09
Posted: 03/18/12 03:42 PM

here is another article...

http://www.hemmings.com/mus/stories/2006/05/01/hmn_feature5.html

will look for more info later...  

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MustangMan
Moderator
Posts: 588
Joined: 07/06
Posted: 03/19/12 10:40 AM

To drop an AOD behind a vintage 28 oz balance engine (or a stroker 331 or 347, which uses the same balance) you need a 28 ounce balance 164 tooth flexplate. Ford Racing used to sell one, and I believe it was an early '80s F-series and E-series 351W application.

You can also find them in the aftermarket from TCI, Performance Automatic, and others.

I have the Ford one behind my 347 stroker for 10 plus years with zero issues.

HTH...
Mark
.  
Mark Houlahan
Brand Manager
Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto
2005 F-150 4x2 4.2L V-6/4R70W Auto

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Falcon1281
New User
Posts: 5
Joined: 03/12
Posted: 03/19/12 08:55 PM

Have concluded that the 164 tooth, 28oz is the answer. My new engine is a 68, 302,long block. In the process of putting it together now, but I have no balancer. Will go with a 28oz fluid filled. Thanks for the information.  

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Falcon1281
New User
Posts: 5
Joined: 03/12
Posted: 03/19/12 08:57 PM

Both of these articles are very informative and will save a lot of mistakes.
Thanks a million.  

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Falcon1281
New User
Posts: 5
Joined: 03/12
Posted: 03/19/12 09:04 PM

Due to the starter position I think the 164 tooth 280z will work. Thanks for the information.  

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Falcon1281
New User
Posts: 5
Joined: 03/12
Posted: 03/19/12 09:05 PM

What starter motor are you using?  

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MustangMan
Moderator
Posts: 588
Joined: 07/06
Posted: 03/20/12 07:01 AM

87-93 Mustang with AOD, essentially my stock starter. The late-model applications use the same starter, manual or auto, unlike the vintage cars. I suggest the '92 (?) and later PMGR starter, or an aftermarket version like the Ford Racing or PA Performance starter. It'll bolt right up and you won't have any hot start issues...

HTH...
Mark  
Mark Houlahan
Brand Manager
Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto
2005 F-150 4x2 4.2L V-6/4R70W Auto

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niru sim
New User
Posts: 1
Joined: 03/14
Posted: 03/25/14 10:02 AM

Thanks!  

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