Pre-1997 Models

302 to 351

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Old Feb 6, 2008 | 10:58 PM
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nintey4f150's Avatar
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302 to 351

im swapping a 96 351 into my 94 f150 in place of a 302 with an aode... what problems may i run into or will it be pretty simple?
 
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Old Feb 7, 2008 | 06:48 AM
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Simple? No. Rewarding? Yes. Good luck man. Are you planning on moving everything over from a donor truck, or just the motor?
 
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Old Feb 7, 2008 | 08:47 AM
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what problems will i have.. and its a complete motor that im swapping
 
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Old Feb 7, 2008 | 11:14 AM
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Well, one is the fact that '96's have a totally different computer system, OBD2, that wouldn't lend itself to moving into the '94.

The 302 has a different computer program than the 351 so it won't run the 351 if you kept all the 302 electricals.

No such animal as an AODE in a F-150 so look to see on the door jam sticker if you have a trans code E for the E4OD, or U for the 4R70w. If you have the E4OD, grab a '94 351 computer and harness from the junkyard and your set. IF you have the 4R70w, I'd take the E4OD from the '96 along with the swap.

Adrianspeeder
 
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Old Feb 7, 2008 | 11:39 AM
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what if i have another f150 with obd2......
 
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Old Feb 7, 2008 | 10:00 PM
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Originally Posted by nintey4f150
what if i have another f150 with obd2......
That would be a start. Don't forget the mass air sensor. You'll also want to replace the exhaust, as the 351's is larger.
 
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Old Feb 9, 2008 | 09:30 AM
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Exclamation

There is one exception to the OBD2 for 96!

If the engine came out of a truck with a GVWR over 8500#, they were exempt!
They ran on good ol' speed density and used a single o2 sensor.

So if your engine came from an F or E 350, some 250s as well, you don't need the OBD swap, or a MAF.
The ignition module is different though. (distributor)
 
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