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4.0L (OHV) Conversion FAQ's (Read Before Posting)

Jim Oaks

Just some guy with a website
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Location
Nocona, Texas
Vehicle Year
1996 / 2021
Make / Model
Ford Ranger
Engine Type
4.0 V6
Engine Size
4.0 / 2.3 Ecoboost
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
6-inches
Tire Size
33x12.50x15
Please read through the following links before posting any questions. If you then have any questions or want to clarify something in regards to a 4.0L swap, feel free to post.

4.0L Conversion FAQs

4.0L (OHV) Conversion

4.0L Conversion - Explorer To Bronco II

4.0L Conversion On Older Ford V-6's

More Links:

Overdrive on A4LD doesn't work after 4.0L conversion - Click HERE.

Another A4LD overdrive wiring discussion - Click HERE.

4.0L won't start - Neutral Safety Switch - Click HERE.

Fuel Lines - CLick HERE.

What 4.0L to use - Click HERE.

What harnesses work best on 1983-1988 Ranger - Click HERE.

More on harness selection - Click HERE.

You can't use a 1983-1988 harness (Unless your AllanD) - Click HERE.

1992 Ranger 4.0L in to a 1991 2.9L Ranger - Click HERE.

4.0L swap in to a 1993-1994 Ranger - Click HERE.

4.0L swap in to a 1988 Ranger - Click HERE.

2000 3.0L to a 4.0L SOHC - Click HERE.
 


Jim Oaks

Just some guy with a website
Administrator
Founder / Site Owner
Supporting Vendor
Article Contributor
TRS Technical Advisor
TRS Banner 2010-2011
TRS Banner 2012-2015
TRS 20th Anniversary
TRS Event Participant
GMRS Radio License
Joined
Aug 2, 2000
Messages
12,440
Reaction score
6,056
Points
113
Location
Nocona, Texas
Vehicle Year
1996 / 2021
Make / Model
Ford Ranger
Engine Type
4.0 V6
Engine Size
4.0 / 2.3 Ecoboost
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
6-inches
Tire Size
33x12.50x15
There was a sticky in this forum from Jrod-13. I was cleaning out some info to compile it and somehow accidently erased the whole thread. If you had a recent post in that sticky I appologize.
 

neojdt

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2003
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ford
Transmission
Manual
I have a question thats probably hasn't been asked. I own a 2003 ranger 4x4 with a manual trans. I really like the truck & want to keep it but the fuel economy really sucks. I wanted to know if was possible to get the same year 2.3L & swap it out with the 4.0 thats in it now & still use the same manual trans that it already has. Thanks
 

tylerhertz10

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Ok got a 96 donor with a 4.0 my truck is a 94 4.0 can I use the old intake harness and ecm with the 96 4.0? Don’t want all the egr mess. Trying to simplify the swap


Sent from my iPhone using Tapatalk
 

99RadRanger

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Apr 1, 2021
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Location
21043
Vehicle Year
1999
Make / Model
Ford Ranger XLT
Transmission
Manual
Jim,

First and foremost, amazing site, amazing detail, amazing help! Absolutely insane detail!

Second, I sort of need some help and I think this is an easy question, but, I just bought a 1999 Ford Ranger XLT 4x4, Manual Transmission with NO ENGINE in it. The Ranger originally came with a 4.0L Ford Cologne V6 OHV engine in it. I would like to put the most powerful, upgradable, and least known issues, 4.0L Ford Cologne V6 SOHC version they had (if I can find it). (Ultimately I am interested in doing a V6 OHV swap to a V6 SOHC, and want to know if there are any issues or if it is possible).

Couple Questions (if you would be so kind to answer, or help me with direction):
1) Can you put a 4.0L V6 SOHC Engine in a Ranger that had originally a 4.0L V6 OHV Engine in it? If so, I assume this swap is easy?
2) Can I use the wire harness, computer, etc. on the original Ranger (because it had a 4.0L V6 OHV already in it previously) be able to be reused to install the 4.0L V6 SOHC? If so, I assume it is plug and play?

I have read pretty much all of your articles, and I can't seem to find a confirming yes to this question..

I eventually would like to get what ever V6 engine you suggest, tear it down, and rebuild it, possibly with performance parts and and add a supercharger potentially. Ultimately I would like to get above the 250 threshold for HP and TQ while maintaining a Manual transmission and a V6 engine that I can work on.

I appreciate any advice you can give, and I am open to all of the suggestions, and if you do not have time, I understand, but any advice you can give me would be extremely helpful, and much appreciated!
 

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