Wanting to do a 4.0 swap

[Paille_1994Ranger]

I been thinking of doing a 4.0 swap I currently have a 94 3.0 automatic and was wondering what is needed from the donor car and what's the newest 4.0 I could possibly put into it or for the money is it just cheaper doing a 5.0 ?

 

[stmitch]

You'll need atleast an engine, trans, ECU, engine wiring harness, exhaust from a donor vehicle for any engine swap 4.0 OHV, 4.0 SOHC, 5.0, 2.3T, etc.

Since your truck is a 94, is it OBD1 or OBD2? If it's OBD1, then switching to a newer engine/ECU would require basically rewiring the entire truck. If it's OBD2 you'd have more options, and newer options.

 

[ford4thot]

This^^^

For the money and effort it will be, I'd do a 5.0

 

[Paille_1994Ranger]

I been looking 5.0 look like the best best and you get more power then the 4.0 swap but would I need to upgrade the rear end

 

[RangerNielsen]

I been looking 5.0 look like the best best and you get more power then the 4.0 swap but would I need to upgrade the rear end

You probably have a 7.5" rear end. I do in my 94 3.slow. So an axle swap and suspension are on the list with the 5.0 swap.

 

[kpgubert]

I truly don't believe 7.5 in. rear ends are nearly as weak as some believe. For an Explorer 5.0 swap I'd have no qualms using a 7.5 out back, unless you're turning some monster tires or very sticky tires.

 

[adsm08]

I been looking 5.0 look like the best best and you get more power then the 4.0 swap but would I need to upgrade the rear end

Only if you ignore the fact that stock for stock the 4.0 and 5.0 have almost identical power curves under 3200 RPM.