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Old 05-06-2013, 09:00 PM   #1
bw71mach1
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Default 351c and AOD

Recently had my 351c rebuilt into a 408 stroker. Wondering what years and vehicles I could get an AOD to work with my 71 351c 4bbl. Also what would be a good rear end gear ratio. Stock is 3.31. Would like get off the line better but still be able to cruise at 60 mph without too many rpms.
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Old 05-06-2013, 09:47 PM   #2
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I use a 4.11 with my 410c AOD combo. Also use the 4r70w gearset in the trans which has a 2.85 first gear....so it gets going in a hurry.

With that said.....NOTHING....again....NOTHING from a pick and pull is going to work in your application. You need a heavily upgraded/modified AOD to put behind a cleveland stroker.
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Old 05-06-2013, 11:18 PM   #3
jimkaray
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Any AOD or AODE that bolts up to a small block will bolt up to the Cleveland block. I would see what the Fox body guys recommend as the best source for a core to build up. They have the experience with the AOD as its developed of the years. You can play with gear ratios on any number of online calculators.
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Old 05-17-2013, 09:45 PM   #4
bw71mach1
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Just read a Mustang Monthly article from 2006. 93' and earlier AOD from a 5.0 will work. Seems like 4.11 is the way to go.
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Old 05-17-2013, 11:09 PM   #5
rmodel65
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yeah you definitely want a 4.11 in the rear..also iirc the stock FMX flexplate will work for a AOD
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Old 05-18-2013, 03:30 AM   #6
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Just spend the money and do it right the first time and get a trans that will work in your application like Dodge said.....something built. Breaking **** gets real expensive, real fast.
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Old 05-18-2013, 03:28 PM   #7
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I have an AOD behind my 408W. It was an Art Carr trans, and I have had it built. (Was only rated for 500hp. I'm over that.)

I think it originated it's life in a 92. I think. Nothing about that trans is original

I'm running 3.50s in my rear. Like the feel. Quick, but streetable on the expressway.
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Old 05-18-2013, 09:54 PM   #8
bw71mach1
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I'm getting the feeling that buying a used AOD and swapping it out isn't that great of an idea. I may have to wait, still recovering from the engine rebuild.
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Old 05-21-2013, 04:21 PM   #9
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Major engine swaps to more powerful engines, typically require changing just about everything else in the car to not have issues. Transmission, rear end, suspension, chassis reinforcement etc.

Taking a car that was designed for 200hp, and throwing 400 or 500hp in it starts breaking things. All sorts of things.
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Old 05-21-2013, 11:21 PM   #10
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I know I have my war wounds

And I even upgrade all the stuff from the start....just not upgraded enough...a 410c can be a monster....but worth it











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