please help Where can I find a 5.0L for a budget swap

General karthief said:

What exactly do I need to convert mine to 5.0

Okies folks it's time to make a junk yard shopping list! I have 2.3L 86 mustang LX 2.3 L with an automatic trans (13 screws no OD) I want to make it a 5.0 with Automatic (probably AOD because no computer)(stick is just sucky with me) I know I need a crossmember a K-member, the motor SEFI...

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Here is a thread where a member swapped a 5.0 push rod engine into an 86. Pretty much the same as 93 with the exception of substitution of 92-93 parts. It is not for the faint of heart or the mechanically inept. It will involve swapping engine, trans and rear end but also includes most of the wiring, fuel lines and other associated part/pieces.
You may consider leaving the 4 cylinder in place and enjoy the ride. I say this because there are countless hacked up half finished nice 4 cylinder cars that were turned to junk or half assed carb swapped crap sitting in someone's back yard or junked because someone got in over their head.
It can be done but it will require a V8 car for parts, add to that the 92-3 cars have wiring changes and the addition of air bags.
Welcome to stangnet
i'll move this to the fox gen talk area to see if any members have more thoughts/insite I have not listed

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Boostedpimp said:

It's not as easy as a swap as many make it out to be if your not living the foxbody life... but to swap in a injected 5.0 you'll need to find a motor and the appropriate wiring. Wiring has changed a few times through the years and for a plug and play setup you need to make them up right.

For your 93 you have to know that the main harness was changed mid year in 1992 so for your 93 conversion you can essentially use a harness from a 92 car or 93 car. The problem is you can only use a harness from a 92 car if it's mid to late production because mid year they changed where the fuel pump relay is situated. Easy way to tell which is which is for 91-mid year 92 the fuel pump relay would be under the driver seat. From mid year 92 and 93 it would be in the engine bay next to the MAF plug and AC wot relay.

With your car being a 93 you want the later 92 or 93 harness. Easy to tell from pictures if its what you need or not. 1, it would have the round brown redish plug which connects to the dash wiring. 2, would have two relays by the Mass Air Flow connector (91-early 92 wouldn't have relays by this connector)

Besides that main harness you'll need the appropriate 02 harness and transmission harness (manual, or auto), a 90-93 fuel injection harness and ECU. With that the wiring is done.

Next would be the fuel lines... both on the 2.3 come in on the driver side by the firewall where as the lines on a v8 fox come in on the passenger side by the airbox. You would have to swap out the fuel lines for v8 style or get creative

Have fun

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