Go Back  DodgeForum.com > Dodge Trucks > Dodge Ram > 2nd Gen Ram Tech
Reload this Page >

'01 Ram 3.9 to 5.2 swap questions

2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

'01 Ram 3.9 to 5.2 swap questions

  #1  
Old 06-13-2019, 09:57 PM
Bumblet00th
Bumblet00th is offline
Registered User
Thread Starter
Join Date: Oct 2018
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Exclamation '01 Ram 3.9 to 5.2 swap questions

I'm about to ask some very dumb questions and please excuse my ignorance for it but firstly, where can I get a wiring harness for a 318? I'm doing a 3.9 to 5.2 swap project and I wanna know what would be my best bet to get a good harness, and if all else, is it going to be the junkyard? Because I cannot find anywhere online for a harness for it and ebay's charging an arm and a leg for one.

And what will I need so the 318 mates up with my transmission? I got the NV3500 5 speed that came with the v6 and I intend on keeping it, I know the bolt patterns are the same but is there an extra part I need or should I be able to just bolt it up and not worry at all about anything? Someone told me I'd have to get a 5.2 flywheel and others had told me I could keep my 3.9 flywheel but I'd need something for it so the computer could register all 8 cylinders. I'm very confused, what do I need/have to do for it to work properly?
 
  #2  
Old 06-14-2019, 07:26 AM
HeyYou's Avatar
HeyYou
HeyYou is offline
Super Moderator
Join Date: Apr 2010
Location: Clayton MI
Posts: 57,279
Likes: 0
Received 5 Likes on 5 Posts
Default

5.2 will drop right in, and bolt right up, no additional parts required. Only difference in wiring harness is two additional injectors. Just add the wiring for them, no need to replace the entire harness. Might need to extend wires for sensors at the front of the motor though. Flash the PCM for the V-8, and yer done.
 
  #3  
Old 06-14-2019, 08:02 AM
Bumblet00th
Bumblet00th is offline
Registered User
Thread Starter
Join Date: Oct 2018
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by HeyYou View Post
5.2 will drop right in, and bolt right up, no additional parts required. Only difference in wiring harness is two additional injectors. Just add the wiring for them, no need to replace the entire harness. Might need to extend wires for sensors at the front of the motor though. Flash the PCM for the V-8, and yer done.
Awesome, thank you so much for your help, I'll start investing
 

Thread Tools
Search this Thread
Quick Reply: '01 Ram 3.9 to 5.2 swap questions


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: