Will be swapping out my 352 for a 5.0 with aod. I'll be keeping the fuel injection and all electronics. Anyone ever done this and if so what problems were encountered.
Rob

 

I converted my orriginal 240 to the 5.0 and AOD about a year and half ago. The engine, wiring harness, and ECM came out of an 87 mustang. I have not had any problems and have been very satisfied with the power it provides. The swap was fairly easy and straight forward but i did not do any of the wiring myself as i had a friend who is an absolute brain child who did the ECM and wiring connections.
Jim

 

Let me clarify; I swapped the original 240 with the 5.0 rather than converted to 5.0. Have you ever tried to type with a woman yacking into your ear?

 

Did you use electric fuel pump? I'll probally swap out tank for one mounted in the rear bed.

 

Yes i installed an electric fuel pump. I also installed an automatic electrical disconnect switch that will open the circuit in the event i take an unusually hard impact. The disconnect switch sits behind the drivers seat and the fuel pump is just below the gas tank under the truck. I plan to move my tank in the back between the frame rails eventually.
Jim

 

I've done two of these swaps and will be doing a 3rd soon...the tech article in this site is excellent. I recommend the mass air version ('89-95) vs. the speed density ('86-88) version if you are going to warm up the engine. I've used a Mustang harness and Crown Vic/Grand Marquis. I like the Crown Vic family harness better as the power leads and solenoid leads are on the right side of the engine bay for our trucks.
I used the fuel pump & bracket from an EFI powered F250 as it mounts on the frame along with the filter bracket. Cheap and in the junkyards. Nice and clean arrangement as well. This pump is not self-priming so you will have to prime it the first time or use a cheap low pressure self-priming pump between it and the tank. Once it's primed, you'll never need to re-prime unless you run out of gas. I also used a cheap clear inline filter before these two pumps to keep any particles from the 40-year-old tank from getting into the system. It saved me recently... You will need a return fuel line. I used my original tank and soldered an appropriate sized line thru the original sending unit. I ran the return line parallel to the original line. I extended the original fuel line in the engine compartment with a couple short pieces of high-pressure rubber line and steel line (where it is exposed to road debris). BE SURE TO USE HIGH PRESSURE RUBBER LINE FOR FUEL INJECTION DOWNSTREAM OF THE HIGH PRESSURE PUMP. ALSO BE SURE TO USE AN INERTIAL SAFETY SWITCH (power interrupt in event of a collision) IN THE FUEL SYSTEM.
Don’t be intimidated by the wiring. You actually make fewer than 10-12 connections, including the electric fuel pumps. I mounted my computer through the firewall under the dash behind the heater controls, fabricated a bracket for it. Another advantage to the Crown Vic family wiring harness is the power relays are in the engine compartment. The Mustang harness requires some additional wiring and splicing as the relays are scattered. Plan to wire in the late model alternator. You’ll need the additional juice. You’ll gain an internal regulator in the deal.
If I remember correctly, I had a radiator shop put smaller radiator hose necks on my radiator. I had replaced the radiator a couple of years before and it already had the tranny cooler in it so it was a snap to adapt it for the AOD.
Just a few quick recollections. You can send me a line if you need more info or run into trouble.