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5.2L/5.9L/6.7L Engines Questions regarding the 5.2L/5.9L/6.7L V8 Engines

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  #1  
Old 02-09-2006, 10:24 PM
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3.9 to 5.2 Swap

OK, So I am going to save money instead of puttin in a better system or lowering it and all that. I want to put in a 5.2. What I want to know is how much it cost, and anything else I'll need. Also, will my stock 5 spd work with the 5.2? I have the nv3500 I beleive. Thanks guys.
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Old 02-09-2006, 10:27 PM
2k2dakotaman 2k2dakotaman is offline
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didnt you want to put a 4.7 in it before?
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Old 02-09-2006, 11:28 PM
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Originally, yes I did. But after some reading and thing I came to the conclusion that doing a 4.7 swap would just be to expensive. First, from what I've read, the 4.7 only had 5 more hp and 5 more ft/lb than the 5.2, 2nd, the 5.2 basically drops right in (with the proper items of course.) I'm just wondering what else I need besides the wiring harness, computer, and the engine of course.
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Old 03-03-2006, 11:57 PM
OklahomaDakota OklahomaDakota is offline
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Same

I am Also needing Here. Have the 3.9 and want the 5.2, but I myself have never done an engine swap and I keep getting mixed reviews...hearing fit will take from one 10 hour workday to 6 weeks or 12 hour weekends. Of course NONE of the guys I have talked to have actually done the swap so I am weary.

I have figured out from several sources the 318 is by far the easiest swap otherwise I would go bigger (4.7 or 5.9). I am looking for easiest way to get the v8.... I have a 98 dak 4x4 CC What parts will I need? thanks thanks!
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Old 03-03-2006, 11:59 PM
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engine, wiring harness, PCM, time and money. The motor mounts are the same and the NV3500 will bolt right up to the 318. then all u have to do is have fun :biggthump
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Old 03-13-2006, 05:53 AM
College_Dakota College_Dakota is offline
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the mounts

The mounts are the same from 3.9 to 5.2? Did not know that

Sorry to thread hijack but, what about the I4? I assume it needs it all, new mounts/tranny/engine/pcm/wiring/etc etc
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Old 03-13-2006, 06:05 AM
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Quote:
Originally Posted by College_Dakota
The mounts are the same from 3.9 to 5.2? Did not know that

Sorry to thread hijack but, what about the I4? I assume it needs it all, new mounts/tranny/engine/pcm/wiring/etc etc
Yup, you will have a little more work to do. The guys with the 3.9 have basically the same motor as the 5.2, just with the front 2 cly cut off. So they could just use the same motor harness and pcm for a while and just splice in 2 more injectors. It would run, not great but would work for a bit till you got a pcm and harness :biggthump
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Old 03-13-2006, 07:27 AM
College_Dakota College_Dakota is offline
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ya

Figured I had a "little bit more work", I'm still bummed the 5.9l doens't work well with the nv3500..

Oh well, the 5.2l will be a nice change once I drive this 2.5l into the ground.
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Old 03-13-2006, 02:16 PM
94 V-6 4x4 94 V-6 4x4 is offline
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Unless there's someone willing to give you a 5.2 for free, go with the 5.9. The amount of work is the same and you get more HP, which is always a good thing. :biggthump
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Old 03-13-2006, 08:57 PM
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so if the 5.2 fits, why wont the 5.9? motors are the same, just bored out a litle different thats all. to real difference on the outside that could see.

i went with the 5.2, got it at a nice price too. all i need to do is get the machining done, then get the cranks kit, and cam. already have the harness, computer, headers, m1, injectors, and anything that will swap from my 3.9 to the v8. (usually all the accessories and stuff
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Old 03-13-2006, 09:33 PM
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You could go with a 5.9 if you have the nv3500. But good luck finding a fly wheel for that. The swap would be easier with a 5.2 IMO. And is what most people choose to do.
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Old 03-13-2006, 10:36 PM
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The flywheel's not that hard to find--just get one for the same year 2500 Ram 360/5 speed. Look on car-parts.com--they're about $125 used.
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Old 03-14-2006, 02:49 AM
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5.2 and 5.9 are physically the same size, however they are balanced differently. 318 being internally and the 5.9 externally. So when you get the motor just make sure it comes with the flywheel. And also note that the flywheel pattern was changed in 95.

Wiring harness wil work fine, you will have to tap for two more injectors, which your V8 computer, which you do require, is already ecuipt with.

NV3500 is notorious for breaking under power, that is why it was never offered behind the 360. But, a rebuilt one will work for you. There is no perfomance upgrade offered for it unfortunatly. so why not just up to the NV4500? the gearing sucks!

So basically anywhere that a 318 will fit, so will a 360, but they do need some changes between the two.

And BTW, the 4.7 uses a completly different computer system and require you the rewire almost all of your existing wiring. not very economical, and then you are stuck with a motor that is good, but as of yet hs very little in the way of performance backing.

Shameless plug time, I do have a complete freshly rebuilt 318 for sale. Just broken in.
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Old 03-18-2006, 09:53 PM
College_Dakota College_Dakota is offline
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.

Thing about the 5.9l swap is that your just gonna eat transmissions all day long.. from what i've read(so my info is as good as they are.) the nv3500 barely takes the 5.2l.. the 5.9l would destroy it.

Wish there was a way to toughen the nv3500 for abuse of a built 318..
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Old 03-18-2006, 10:00 PM
FuryUs FuryUs is offline
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What about the NV4500? Anybody tried that?
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