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#2363080 - 08/31/17 08:11 PM anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar?
rbkt65 Offline
mopar

Registered: 11/03/03
Posts: 662
Loc: illinois
just windowed my 543 in my wagon tuesday nite. looking at options with 5.7/6.4 from mother mopar. wife works at mopar dealer so price could be very good. my question is this=why does mopar recommend using a stick shift trans with the wiring harness/pcm set up? i would use a 727 with manual shift valve body i think. any insight to this swap is greatly appreciated. thanks in advance rick.

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#2363099 - 08/31/17 08:37 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
RTSrunner Offline
super stock

Registered: 11/03/03
Posts: 1173
Loc: Pittsburgh,PA
I think any non computer controlled transmission(or stand alone controlled) would be ok.

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#2363142 - 08/31/17 09:27 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
hudsonhornet7x Offline
super stock

Registered: 01/14/12
Posts: 973
Loc: Plumer, Pa
Hi Rick,

Mopar recommends the stick shift because the wiring kit can't control the new transmissions that are out there. A manual valve body 727 would do fine.

I have a 6.4 short block and the wiring kit, I think it will be a good setup for sure.
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#2363166 - 08/31/17 10:10 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: hudsonhornet7x]
rbkt65 Offline
mopar

Registered: 11/03/03
Posts: 662
Loc: illinois
thank you, i was trying to figure out why. what you say makes very good sense. thank you. what are you putting yours in? if already running how does it run? thanks again. rick

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#2363196 - 08/31/17 11:12 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
hudsonhornet7x Offline
super stock

Registered: 01/14/12
Posts: 973
Loc: Plumer, Pa
This is a school project in a 68 Charger. Don't have it running yet but we have high hopes!!

From what I understand the 6.4 is excellent in our older cars.

Your project sounds very interesting and I wish you the best of luck on your endeavors!
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#2367021 - 09/07/17 02:09 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
BlakDak71 Offline
member

Registered: 10/13/13
Posts: 7
Loc: Michigan
I used it in my Dakota. Absolutely love it. Very easy, great instructions/diagrams. Zero complaints.

As mentioned, the manual transmission is recommended due to kickdown issues, so a manual VB trans would also be fine.

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#2367397 - 09/08/17 09:57 AM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: BlakDak71]
MattW Offline
top fuel

Registered: 06/02/05
Posts: 2462
Loc: Ontario Canada
Originally Posted By BlakDak71
I used it in my Dakota. Absolutely love it. Very easy, great instructions/diagrams. Zero complaints.

As mentioned, the manual transmission is recommended due to kickdown issues, so a manual VB trans would also be fine.



What year Dakota love to see pics.

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#2367476 - 09/08/17 12:39 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
Silver70 Offline
I Live Here

Registered: 02/01/03
Posts: 17615
Loc: Rust Belt, SW PA
I did a 6.1 hemi with a 518 and used a cable drive throttle body and used a cable for the kickdown... wasn't a direct fit, but did the job. It's nice to be able to go to the local parts store and pick up parts any time.
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68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
99 Trans Am, 66 GTO, 06 Magnum RT AWD

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#2379869 - 10/01/17 10:24 AM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
Darius Offline
master

Registered: 07/12/07
Posts: 3675
Loc: Sacramento, Ca
I bought an after market transmission controller for a NAG1. It has the speed sensor on the output shaft of the transmission. Works great and I get 23mpg avg on the hiway!!! 5.7/NAG1 5 speed auto/2:76 gear in an 8 3/4 rear end.
Source soundgermanautomotive.com
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#2379998 - 10/01/17 01:48 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: Darius]
WO23Coronet Offline
master

Registered: 01/08/08
Posts: 3790
Loc: Canada
Originally Posted By Darius
I bought an after market transmission controller for a NAG1. It has the speed sensor on the output shaft of the transmission. Works great and I get 23mpg avg on the hiway!!! 5.7/NAG1 5 speed auto/2:76 gear in an 8 3/4 rear end.
Source soundgermanautomotive.com


You had a heck of a time getting it to work though didn't you? You also used a slipper driveshaft?
If someone could come out with a ready to go controller for a NAG1 it would be a great transmission for any muscle car. Your 2.76 ratio with a NAG is like a 727 with a 4.10 off the line

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#2380250 - 10/01/17 08:05 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: MattW]
Grizzly Offline
master

Registered: 08/24/05
Posts: 4600
Loc: at work
Originally Posted By MattW
Originally Posted By BlakDak71
I used it in my Dakota. Absolutely love it. Very easy, great instructions/diagrams. Zero complaints.

As mentioned, the manual transmission is recommended due to kickdown issues, so a manual VB trans would also be fine.



What year Dakota love to see pics.


x2 drool

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#2383679 - 10/07/17 11:14 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
ace26 Offline
member

Registered: 10/07/17
Posts: 1
Loc: Memphis
I have the 6.4 setup with the Mopar wiring and computer setup. I'm currently putting it in my 73 Duster along with a manual 5 speed, don't have it running yet, but getting close. Have the wiring to do yet, and going back and making sure everything is tight. The one thing I don't like and correct me if I'm wrong, is that the current controllers on the market will not allow you to modify or tune the Mopar computer that comes with the kit even though it is unlocked. Will post some pics soon as I figure out how.

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#2385493 - 10/11/17 08:14 AM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: ace26]
BlakDak71 Offline
member

Registered: 10/13/13
Posts: 7
Loc: Michigan
As far as I know, the PCM should be tuneable with HPTuners software or Diablo, or similar.

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#2385497 - 10/11/17 08:21 AM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: Grizzly]
BlakDak71 Offline
member

Registered: 10/13/13
Posts: 7
Loc: Michigan
Originally Posted By Grizzly
Originally Posted By MattW
Originally Posted By BlakDak71
I used it in my Dakota. Absolutely love it. Very easy, great instructions/diagrams. Zero complaints.

As mentioned, the manual transmission is recommended due to kickdown issues, so a manual VB trans would also be fine.



What year Dakota love to see pics.


x2 drool





For some reason, can't seem to find the pictures of the motor I have on my phone. I'll upload some later.

Edit: tried to link a few from my imgur account, they aren't showing up though.


Edited by BlakDak71 (10/11/17 08:22 AM)

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#2387816 - 10/15/17 04:45 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
hotrod98 Offline
member

Registered: 01/07/06
Posts: 117
Loc: Arkansas
I bought the new install kit from Mopar for a 6.4 hemi but after reading the instructions, it says that it won't work with my 2012 6.4 crate engine.
Wonderful. Anyone know how to make it work with the earlier engine?
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1970 Superbird 4-speed, Dana, bucket seats

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#2387832 - 10/15/17 05:21 PM Re: anyone buy a new 5.7/6.4 crate motor/wiring kit from mopar? [Re: rbkt65]
hudsonhornet7x Offline
super stock

Registered: 01/14/12
Posts: 973
Loc: Plumer, Pa
You will need a tone ring for the newer engines. Molnar makes a nice one.

Pull the crank, change the tone ring, and I believe you are good to go.
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