Is it possible to replace 93 4.0 with 98 4.0?

[karaoke_carlos]

What would be involved in doing this? I hear the heads are a little different, but would the intake manifolds, ecu, etc. work? Or could I do it with the 93 setup?

Thanks,

Carlos

 

[dave@threat]

Its funny that you ask. I have a 93 Ranger with a 98 4.0. My truck already had the swap done when i got it. They swapped the motor, trans computer and harness from an explorer. The truck originally had a 5 speed manual trans. Now it has a 5 speed auto. I believe all you will have to do on yours is swap the motor, computer harness and the computer. Im not real sure about the trans harness though.

 

[karaoke_carlos]

ANother funny thing...

Never mind... I just found out... it was sold to me as a 3.0... but it actually is a factory 4.0 (confirmed by engine block number and VIN).

So.. now I just have to figure out if I can replace it with a newer one, as I hear the heads on these are a pain...

C:>

 

[woodyedmiston]

Newer than what? How many miles are on it - you should expect 1/4 million before anything serious. What do the heads have to do with it if they aren't cracked, leaking, etc.

Do a bit more research about the 4.0 on this site before you start fixing things that aren't broken.