3.9L to 5.9L engine swap - DodgeForum.com

Go Back  DodgeForum.com > Dodge Trucks > Dodge Dakota
Reload this Page > 3.9L to 5.9L engine swap
Notices
Dodge Dakota The tough, mid size pickup, the Dodge Dakota. The Dodge Dakota has everything the big boys do with a mid size truck price.
Sponsored by:
Sponsored by:

3.9L to 5.9L engine swap

Reply

 
 
  #1  
Old 10-01-2010, 12:07 AM
Danthedakotaman
Danthedakotaman is offline
Registered User
Thread Starter
Join Date: Oct 2010
Posts: 3
Exclamation 3.9L to 5.9L engine swap

Hey guys, I currently got the 3.9L V6 with zero ***** and wanna throw in a 5.9L, would it fit and can the tranny take the extra strain?
 
Reply With Quote
  #2  
Old 10-01-2010, 12:11 AM
Danthedakotaman
Danthedakotaman is offline
Registered User
Thread Starter
Join Date: Oct 2010
Posts: 3
Default

or is the 5.2L in general a better engine?
 
Reply With Quote
  #3  
Old 10-01-2010, 12:50 AM
dbilik's Avatar
dbilik
dbilik is offline
Record Breaker
Join Date: Feb 2008
Location: Chicago, IL
Posts: 1,058
Default

I personally like the 5.2 because of the slightly better MPG, and more metal in the block, but then again I am not going for power.

No, your trans won't take the 5.9. It will fit though.
 
Reply With Quote
  #4  
Old 10-01-2010, 12:58 AM
Danthedakotaman
Danthedakotaman is offline
Registered User
Thread Starter
Join Date: Oct 2010
Posts: 3
Default

yea i read that the 5.2 is not bad at all, it would fit without any major changes?
 
Reply With Quote
  #5  
Old 10-01-2010, 10:37 AM
dbilik's Avatar
dbilik
dbilik is offline
Record Breaker
Join Date: Feb 2008
Location: Chicago, IL
Posts: 1,058
Default

Originally Posted by Danthedakotaman View Post
yea i read that the 5.2 is not bad at all, it would fit without any major changes?
Well that depends on what you consider major changes. You are changing out your drivetrain so.... neither the 5.9 or 5.2 are bad engines. I just like the 5.2 for my purposes more. Read the faq for info on the swap.
 
Reply With Quote
  #6  
Old 10-04-2010, 02:05 AM
Crazy4x4RT's Avatar
Crazy4x4RT
Crazy4x4RT is offline
Hall Of Fame
Join Date: Aug 2007
Location: NM
Posts: 10,869
Default

Danthedakotaman what year is your truck? I can move it into the proper section.
 
Reply With Quote
  #7  
Old 10-04-2010, 08:29 PM
dbarnes
dbarnes is offline
Rookie
Join Date: Nov 2006
Posts: 55
Default

Originally Posted by Danthedakotaman View Post
Hey guys, I currently got the 3.9L V6 with zero ***** and wanna throw in a 5.9L, would it fit and can the tranny take the extra strain?
what year truck do you have and what year 5.9 are you planning on using
 
Reply With Quote
  #8  
Old 11-11-2010, 09:38 PM
BrandNew's Avatar
BrandNew
BrandNew is offline
Professional
Join Date: Jul 2010
Posts: 184
Default

just so you know what ever motor you do end up doing it has to be the same year as your truck or newer to pass inspection.
 
Reply With Quote
  #9  
Old 11-13-2010, 11:39 AM
dbilik's Avatar
dbilik
dbilik is offline
Record Breaker
Join Date: Feb 2008
Location: Chicago, IL
Posts: 1,058
Default

Actually that's not entirely true, to pass emissions it varies from state to state. In my area, I was told I need to maintain all of the same emissions controls which are listed for my vehicle and pass emissions. Also, if you are OBDI, they don't even test those vehicles in the Chicago area anymore. My brother out in Vegas does have to still pass emissions with his 1993 Dakota, so it all just depends.
 
Reply With Quote
  #10  
Old 04-08-2011, 03:17 PM
dakota_drop_tops's Avatar
dakota_drop_tops
dakota_drop_tops is offline
Registered User
Join Date: Sep 2008
Location: Boise Idaho
Posts: 7
Default

A swap from a 3.9 to a 5.2 is easy as far as the hardware goes if it is a LA to Magnum swap. Same motor mounts, flex plate and torque converter. Now if you go to a 5.9 it is a different ballgame.What I did was replace the entire drive train from a donor wreck. The output of the trans is the same for all Automatics. If you are going to put theV8 into a 1st gen Dakota then you will have to remove the fan and put electric fans in front of the radiator as the v8 is 4.4" longer than the V6. Not hard but be aware.
 
Reply With Quote
 
 
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
herche54
2nd Gen Ram Tech
15
05-25-2017 10:46 AM
nickr519
2nd Gen Ram Tech
42
09-23-2015 09:33 AM
JoshuaYsassi
2nd Gen Ram Tech
2
07-09-2015 09:42 AM
rampuppy
Archived Classifieds
3
07-08-2015 03:10 AM
jrmikucki
2nd Gen Dakota
4
07-05-2015 03:09 PM


Thread Tools
Search this Thread
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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Featured Sponsors

All times are GMT -4. The time now is 02:57 AM.