Engine Replacement Compatibility - Ranger-Forums - The Ultimate Ford Ranger Resource
Ford Ranger Forum - Forums for Ford Ranger enthusiast!

Go Back   Ranger-Forums - The Ultimate Ford Ranger Resource Arrow Ranger-Forums Technical Forum Arrow Drivetrain Tech

Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

LinkBack Thread Tools Search this Thread
Old 01-30-2015
Thread Starter

I am: Luke
Join Date: Jan 2015
Location: Tucson, AZ
Vehicle: 1991 Ford Ranger
Drive Type: 4x2
Engine: 4.0
Posts: 5
Total Props: 0
Engine Replacement Compatibility

Hello all, I am thinking about swapping out my 91 ranger engine for one a bit newer. The current one runs just fine, but I would like to have an engine that produces a bit more power and one that has better fuel efficiency. My question is what other ranger engine years are compatible with my vehicle and could swap into my engine bay. Thank you!

I have a 4x2 4.0 L V6.
Reply With Quote
+ 0 -
Old 01-30-2015
iTrader: (1)
I am: Ron Dean
Join Date: Jan 2014
Location: Vancouver, BC
Vehicle: 1994 Ford Ranger
Drive Type: 4x4
Engine: 4.0
Posts: 4,742
Total Props: 88
If you mean what engine with more power will bolt to your transmission, there is only 1.
You have a 4.0l OHV engine with 160HP, the newer 4.0l SOHC engine has 207 HP

These have a similar block/bell housing bolt pattern, SOHC has one extra hole I think.

You still need to swap Computer and engine wiring harness.
AND 4.0l SOHC only came with PATS computers and OBD II, so you will need to add a "wand" on your ignition key slot and an O2 sensor behind the Cat converter.
Your '91 should have a VSS(vehicle speed sensor) on the trans, but have a look, you will see where speedo cable comes out and there should be a wire connector on the same place, computer needs that.

Hopefully you have a manual trans, if not then that may be another can of worms.

I have read a couple of people suggesting the 4.0l OHV computer could run a 4.0l SOHC, I am sure it could "run it" since it is a MAF system but I doubt you would be happy with results.

All in all, you would probably be better of just doing the more common explorer V8 swap, engine and tranny.
A little more work, but more power and lots of how-to's for that

Last edited by RonD; 01-30-2015 at 08:32 PM.
Reply With Quote
+ 0 -

Similar Threads
Thread Thread Starter Forum Replies Last Post
1999 Ford Ranger XLT Engine Compatibility Sternzy Drivetrain Tech 20 07-24-2012 05:37 PM
Tailgate replacement compatibility? Barry Tolson Exterior Semi-Tech 4 11-07-2010 08:15 AM
Engine swap compatibility-4.0 SOHC jharley79 4.0L OHV & SOHC V6 Tech 7 12-13-2009 01:39 PM
1986 ranger engine compatibility lowflying90 SOHC - 2.3L & 2.5L Lima Engines 0 01-06-2009 07:53 PM
Transmission replacement compatibility??? l2en Drivetrain Tech 22 03-23-2008 11:16 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -6. The time now is 06:06 AM.