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71 302 to 93 AOD flexplate?

 
  #1  
Old 04-26-2010, 12:11 PM
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71 302 to 93 AOD flexplate?

Is a flexplate from an 82 f150 auto with a 351 the correct flexplate for a '71 302 '93 AOD mating? If not what flexplate do I need? I keep reading conflicting info.
 
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Old 04-26-2010, 01:54 PM
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I'm no expert but I'm pretty sure the AOD requires a 164 tooth flexplate with a diameter of about 14.25 inches. If the 82 F150 351 flexplate has 164 teeth then you may be in business, but I'd check the starter clearance carefully. The smaller and midsized 302 cars with the C4 usually had either the 148 or the 157 tooth flexplate and only the larger cars had the 164 tooth. It is my understanding that the 164 tooth flexplate used in the large car 302s was different from the 164 tooth flexplate used with the 351W. Maybe someone else can corroborate this...
 
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Old 04-26-2010, 01:59 PM
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it is a 164 tooth but the parts house didnt show the imbalance. I'm assuming its 28oz but trying to verify. I dont want to run an incorrect flexplate and cause motor or tranny damage. I need to know if it is correct.
 
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Old 04-26-2010, 02:19 PM
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I think the 28 oz is the one you want for the 71 302 but I don't know how to tell the difference between the 28 and the 50. Do you have a part number? I'm not a parts guy like Bill so I hesitate to throw parts numbers around. I do have reference to a part number E0AZ-6375-A which is supposed to be the 28 oz flexplate. Is that what you have or something else?
 
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Old 04-26-2010, 03:28 PM
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Originally Posted by GreatNorthWoods View Post
I think the 28 oz is the one you want for the 71 302 but I don't know how to tell the difference between the 28 and the 50. Do you have a part number? I'm not a parts guy like Bill so I hesitate to throw parts numbers around.

I do have reference to a part number E0AZ-6375-A which is supposed to be the 28 oz flexplate. Is that what you have or something else?
EOAZ6375A (replaced C5AZ6375T) .. Flywheel (Flexplate) / Obsolete

Fits: 1965/80 302/C4 / 1969/79 302 FMX (passenger cars only) / 1981 351W C6.
------------------------------------------------------------------------------
Originally Posted by Schmitty
Is a flexplate from an 1982 f150 auto with a 351...
Which 351? There were two different 351's installed in these trucks: 351M & 351W.

Neither uses the same flexplate as a 302.
----------------------------------------
E2AZ6375A .. Flywheel (Flexplate) / Available from Ford.

MSRP: $76.10 // FTE Ford Dealer Parts Dept Sponsor PARTSGUYED.COM price: $61.19 / Parts Guy Ed = Horizon Ford in Seattle (Tukwila) WA

Fits: 1982/96 302/AOD / But if using on a 1981 or earlier 302, you will have to change the harmonic balancer (AFAIK) to match this flexplate.

btw: Parts catalogs do not list flexplate/flywheel ounces.
 
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Old 04-26-2010, 04:37 PM
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1971 302 with AOD

o.k., just getting more confused now. my motor is a 1971 302. 28oz correct? Tranny is an AOD. which requires a 164 tooth flexplate. did the 1982 f150 351w have a 164 tooth 28oz imbalance flexplate? if not what vehicles did? 164 tooth 28oz is the flexplate I need right?
 
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Old 04-26-2010, 06:32 PM
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Originally Posted by Schmitty View Post
o.k., just getting more confused now. my motor is a 1971 302. 28oz correct? Tranny is an AOD. which requires a 164 tooth flexplate. did the 1982 f150 351w have a 164 tooth 28oz imbalance flexplate? if not what vehicles did? 164 tooth 28oz is the flexplate I need right?
I have no clue about flywheel ounces, the parts catalogs do not list that info.

No F Series truck, Econoline, or Bronco w/a 302 was available with AOD until 1982.

The 302 AOD uses a specific 164T flexplate. Part number listed in previous post.

C4: All 1969/77 F100's and 1975/77 F150's. The C6 was an option beginning in 1978.

351W's were not installed in F Series trucks or Bronco's until 1981. Prior years: Passenger Cars and 1975/79 Econolines only.
 
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Old 04-26-2010, 07:58 PM
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A quick websearch on "ford 302 flexplate" turned up this place, which has what you need:

http://www.mustangdepot.com/OnLineCa...lex-plates.htm
 
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Old 04-27-2010, 01:16 PM
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  #10  
Old 04-27-2010, 07:59 PM
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Ford changed the imbalance on the 302 from 28 to 50 oz in 1981. You have to be very careful when using parts from that era. The 351W imbalance was never changed. They are all 28oz.
 
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Old 04-27-2010, 09:05 PM
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I believe this is the one you want to fit the AOD to your 71 302...
 
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Old 04-27-2010, 09:44 PM
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Kind of shocking but then again not... a C4 flex works on an AOD? Pick one up at the boneyard if you can find an early engine.
 
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Old 04-27-2010, 10:50 PM
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I know nothing.
 
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Old 04-28-2010, 10:47 AM
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Originally Posted by ALBUQ F-1 View Post
Kind of shocking but then again not... a C4 flex works on an AOD?
It does not according to FoMoCo.

If it did, why would Ford list E2AZ6375A as the AOD 302 flexplate?
 
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Old 04-28-2010, 06:07 PM
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I dont remember all the numbers but I can add to the confusion. I have a 302 mated to a 4r70w. My flexplate is that of a 1972 351c motor.

I have zero vibration from this setup, but I did match the balancer to the flexplate, just cant remember if it was a 28 or 50 imbalance.
 

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