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  1. #1
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    Default 5.7 Hemi to Carb

    Hey Guys

    Ive recently brought a 5.7 hemi :0 that has been converted to a carb ( well has a new manifold an carb on it thats about it )

    wondering is anyone on here has done this. all the forums ive read have been from a few years ago. i know about/of the so the "Hemi 6" MSD. but on all the products online ive seen "for 2003-2009", the engine i have is a 2014, from what ive read it has VCT where the older ones didnt? ( correct me if im wrong ). im using a 727 trans so i dont really wana run the near style gearbox as i have limited fab skills ( aka no ) an dont want to have to cut an weld. so using the standard ecu an going back to efi is a real last resort.

    any help would be great car is a Ve valiant, also im a kiwi

    Cheers an thanks in advance
    Last edited by Epic_Holden; 24-11-2018 at 02:32 PM. Reason: spelling error

  2. #2
    casual poster Rat Patrol's Avatar
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    Default

    I run dual quads on a 6,1 G3 Hemi.

    The MSD will only read the tone ring on the early 5.7 and 6.1,not the Apache 6.4 or Eagle 5.7 VVT.

    You need to buy an early tone ring and fit it to your later crank.

    You need to buy th3 Comp VVT lock out kit and MDS block off plugs to remove the cylinder de-ac

    The 5.7 intake will be ok, but kick down will be an issue without throttle body modifications and using the Mamcini k/cable.

    Or - you can go manual valve body.

    97D29EFD-51B2-415D-9FD3-D19837D33D0A.jpg
    The Red Baron ...1967 Plymouth Belvedere RO23 Super Stock tribute - Retro fitted 6.1 SRT Hemi ............................ (psssssst don't tell anyone..............it runs dual quads!! )

  3. #3
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    Default

    Hey patrol

    Thanks for that,

    good to know about the tone. Iíve since read after this post that was the issue but wasnít sure I could change or not.

    The kick down issue, Iíve got a 650 Holley on it. I thought it wouldnít of been an issue?

    Cheers

  4. #4
    casual poster Rat Patrol's Avatar
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    You can’t use the old school Lever system, you’ll need a k/d cable.

    Word of advice, the Lokar k/d cable is not very durable - reacts badly to heat. Use the Mancini one.

    PS - you can’t run an early crank in the VVT motors - crank snout is different....so it’s a tone ring swap or nothing.

  5. #5
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    Default

    We love kiwis!

    The 727 in auto mode needs a KD. Don't know why you cannot use a lever for the KD. If you don't want to bother with a KD, get a Transgo Man shift kit for it. I did that with all my 727/904s & really enjoyed the manual control. Even with a 318, I could move off from rest on level road in 3rd gear. This saved fuel & the trans lasts longer because it is not changing gears all the time. The tq converter does the work.

  6. #6
    casual poster Rat Patrol's Avatar
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    Quote Originally Posted by GtoGeoff View Post
    We love kiwis!

    The 727 in auto mode needs a KD. Don't know why you cannot use a lever for the KD. If you don't want to bother with a KD, get a Transgo Man shift kit for it. I did that with all my 727/904s & really enjoyed the manual control. Even with a 318, I could move off from rest on level road in 3rd gear. This saved fuel & the trans lasts longer because it is not changing gears all the time. The tq converter does the work.
    Speaking as someone who has actually done this swap......You can’t use the kick down levers because they won’t clear the rear of the G3 Hemi block...AND....there’s no provision for the pivot to be fitted on the motor.

    And even if you could....the geometry is all wrong.

    A skilled fabricator MIGHT be able to make it work.....but its hardly worth the effort.

    Thats why I decided to go with a reverse manual valve body. The increased line pressure the full manual vb provides is also a good spin off when putting a 475 hp motor in front of a factory 727.
    Last edited by Rat Patrol; 16-12-2018 at 10:11 AM.
    The Red Baron ...1967 Plymouth Belvedere RO23 Super Stock tribute - Retro fitted 6.1 SRT Hemi ............................ (psssssst don't tell anyone..............it runs dual quads!! )

  7. #7
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    Default

    The Transgo full Man shift allows you to keep the std shift pattern & eliminate the KD.

  8. #8
    casual poster Rat Patrol's Avatar
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    To the OP - The salient point being to use a manual valve body. The pattern is unimportant, simply user preference.

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