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Thread: 3.5 Inlet Manifold on a 3.9

  1. #1
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    3.5 Inlet Manifold on a 3.9

    Can I use the complete inlet manifold and throttle body from a 3.5 litre EFI on a 3.9 litre EFI?

  2. #2
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    Yes.
    MY08 TDV6 SE D3- permagrin ooh yeah
    2004 Jayco Freedom tin tent
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  3. #3
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    Depends on which 3.5 whether you would want to.
    Earlier 3.5 have obsolete hose type injectors and only 89 had modern injectors.

    AFAIR the throttle body is smaller.
    the older 3.5 does not have a stepper and has an extra injector for cold start .

    But if you are talking about buying a 3.9 to replace a broken 3.5 and fitting your existing injection yes it will run but not as well as a 3.9 14CUX.

    Regards PhilipA

  4. #4
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    I want to replace my current 3.5 with a 3.9 with engine number starting with 38D. I have the 14CU but run on LPG with a BLOS mixer, petrol is only used to get it started from cold. I want to just put the whole inlet manifold from the 3.5 onto the 3.9.

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