351 swap help needed
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Freshman User
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351 swap help needed
I have a 95 f150 with 302 aod and a 96 bronco with a 351 e4od.I want to put the 351 in the f150 as easily as possible. Whats the best way? From what ive read on here i need to use the bronco EEC for the motor but it is for the e4od not the aod. So if I wanted to put the e4od into the truck i would need to use the wiring harness from bronco and move the transmission cross member and shorten and lengthen drivelines to get it to bolt up right? If i bolt the aod to the 351 and use the 302 wiring harness i need a new computer for a 351 with a aod right and a different flex plate right? Do I have everything correct? whats the best easiest path forward? any help greatly appreciated.
Senior User
Joined: Jul 2007
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From: south jersey
im assuming you have the 4r70w trans.. if you use that trans you need a 28oz flexplate for the 351.. as far as i know there isnt a computer for a 351 with the 4r70w trans.. i have done this swap in my truck.. is your 302 mass air? if so the stock computer will run everything just fine and you could always get it tuned which i have done... as far as using the e4od i think u are correct about moving the cross member and also a different drive shaft... in my swap i used all of my stock 302 wiring and 4r70w trans and didnt have any issues...and after some mods like cam and heads i had the computer tuned
Fleet Mechanic
Joined: Jun 2011
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From: Conway, South Carolina
I have a 95 f150 with 302 aod and a 96 bronco with a 351 e4od.I want to put the 351 in the f150 as easily as possible. Whats the best way? From what ive read on here i need to use the bronco EEC for the motor but it is for the e4od not the aod. So if I wanted to put the e4od into the truck i would need to use the wiring harness from bronco and move the transmission cross member and shorten and lengthen drivelines to get it to bolt up right? If i bolt the aod to the 351 and use the 302 wiring harness i need a new computer for a 351 with a aod right and a different flex plate right? Do I have everything correct? whats the best easiest path forward? any help greatly appreciated.
The 5.0 SD EEC will run the 5.8, but the 5.8 won't run to its full potential. You can use a 5.8/E4OD SD EEC to run the 5.8/AOD combo but the CEL will burn because of the missing E4OD. All you need to keep the CEL off is a SD EEC for a 5.8/C6 combo. If you have 5.0 MAF EEC it will run the 351w fine, but you might have a CEL burning. So do you have Mass Air 5.0 or SD 5.0?
Yes you will need a flex plate. You will need a flex plate for a 1988 Crown Vic with a 351w/AOD combo.
My transmission handles the 351w fine. IMO i don't think the E4OD is worth all the trouble because you will have to swap the EEC, complete wiring harness, trans, trans cross-member, and drive shafts. Take longer than bolting the AOD up to the 351w too.
Fleet Owner
Joined: Oct 2005
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From: Kentucky
The 1995 truck in reference will have a 4R70W. Ford did not use AODs in 1995. It is a 100% electronic controlled transmission, based on the AOD design. Do not confuse it for an AOD, it will require a computer to run it. This 1995 truck will be MAF therefore the swap to the 5.8L engine should be very easy. No computer and minimal wire changes required.
The 1996 Bronco uses an OBD-II (EEC-V) system. It is not easily swappable into a OBD-I vehicle without some major work.
The 1996 Bronco uses an OBD-II (EEC-V) system. It is not easily swappable into a OBD-I vehicle without some major work.
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Ok thanks for the info. So I bought a flexplate, Now i have read that u need to change the upper intake from the 95 5.0 and put it on the 5.8 so the wiring matches. Im just about to do that but the EGR valve is different from motor to motor does that swap with the intake or use the one with the 5.8? Thanks for the help.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Where are you getting this info... it's all wrong. You don't need to make any changes to the 5.8 to get it working in your F150, simply disconnect all the wiring from the 5.0 at the engine, remove the 5.0, put the 5.8 back where the 5.0 was with a 28oz AOD/4R70w flexplate(that is what you bought?), and plug the wiring back into the engine. Any sensors on the 5.8 that don't have matching wires in your truck you can simply ignore because they are not part of ths version of EFI.
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Yes thats the flexplate i bought but i did some searching and on this website and i think it was even u conanski that said to change the upper intake. but maybe i mis read ive done alot of searching thanks for the help. i just changed the flywheel getting ready to put motor back in. U guys r the best ive learned so much from this site over the years just searching this is my first time posting thanks again.
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Fleet Owner
Joined: Oct 2005
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From: Kentucky
You misunderstood what Paul and the others have been saying about the intake. For starters about the only thing that swaps between the 5.0 and 5.8 engines is the throttle body (and TPS). Everything else is unique to each engine.
The EGR may be something you have to piece together from a different engine. Pre-1996 5.8L engines used the old style EVP (EGR position) feedback. The 1996 version uses DPFE (Pressure differential). You may have to source an older EGR valve, EVP sensor and EGR tube. Not sure if the 5.0 and 5.8 engines uses the same physical EGR valve, the EVP should be the same.
Sounds like you have most of the basics down now, let us know how the project progresses.
The EGR may be something you have to piece together from a different engine. Pre-1996 5.8L engines used the old style EVP (EGR position) feedback. The 1996 version uses DPFE (Pressure differential). You may have to source an older EGR valve, EVP sensor and EGR tube. Not sure if the 5.0 and 5.8 engines uses the same physical EGR valve, the EVP should be the same.
Sounds like you have most of the basics down now, let us know how the project progresses.
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Ok Thanks i will defintly keep you posted how its goin. This first project is really just the begining. The 96 bronco we took the 5.8 out of is the main project. My plan is to stuff a 460, zf5speed, dana 60, and a sterling 10.25 in it. Im sure ill b asking some questions when we get there.
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ok guys i got motor in the truck everything hooked up. But it wont start. I got fuel to the rails and i got spark. I dont think the fuel is making it past the injectors because if a spray a lil starting fluid down the intake it will fire. What could it be?
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So something i noticed in the fuse box hole number 8 is injector driver module my 95 does not have a fuse their or wired for a fuse, but the 96 bronco has that fuse and is wired. Is that something i need?
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Alright so i still cant get it started. Ive went all over the motor up down sideways cant find anything wrong or unplugged. After i noticed the injector control fuse is not wired on my 95 but is on the 96. I got looking in my haynes manual at the wiring diagrams. They show two diagrams one for a 96 and one for a 95. In the diagram the injector wires are the same color between the years, but the pin numbers where they connect to the PCM are different. If this is true then that could make it so my injectors would not be firing correct? Any help greatly appreciated.
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ok sorry bout bout to jack the thread alitte, what are the trans that will fit a 351, what are they? how many gears they got? do they need a computer? and how good are they?
would just like alittle info here and it might help others to know this as well
would just like alittle info here and it might help others to know this as well