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Thread: 4.6 Transplant...A new lease of life !!

  1. 27th April 2025, 09:25 PM #11
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    ozscott
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    Quote Originally Posted by wooferocau View Post
    My 98 Disc 98 V8 ( 3.9) had a catastrophic engine failure just recently....rod punched out the side of the block !!

    I am very fond of the old series 1 so decided to pursue the option of fitting a 4.6. I contacted Ian from TRS in SA.....he went through various options and we came up with an engine config that i liked...

    4.6
    Top Hat Liners
    Hi Comp Forged Pistons/Rings
    New rods
    Bearings
    Cam ( Hi torque)
    Matched /Flowed injectors
    and....so on...

    Received the engine back and spent a couple of days re fitting ..

    Well......The results have exceeded my expectations !!! What a transformation in the old girl !! The bottom end torque is superb...... it pulls like a freight train...very very happy.

    Still running in, and if it improves even more over the next few thousand K,s i will be stunned..

    100% worth every dollar invested in the 4.6!!
    Not good. I don't recall ever hearing of a 3.9 throwing a rod. Cheers
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  2. 3rd May 2025, 04:29 PM #12
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    A little "Bling"
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  3. 3rd May 2025, 05:31 PM #13
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    Does the 4.6 have a higher plenum chamber or are they the same as the 3.9 and 3.5?
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
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  4. 3rd May 2025, 05:41 PM #14
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    Quote Originally Posted by Slunnie View Post
    Does the 4.6 have a higher plenum chamber or are they the same as the 3.9 and 3.5?
    its my old plenum from the 3.9.

    Not sure about the "Proper" 4.6 plenum as on the P38 and such...
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  5. 4th May 2025, 04:49 PM #15
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    New Exhaust fitted today...
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  6. 7th May 2025, 04:57 AM #16
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    Quote Originally Posted by Pedro_The_Swift View Post
    Nothing, just a drop in replacement.

    I have emailed Tornado systems in the UK several times now in regards to one of their chips........not one reply...
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  7. 7th May 2025, 12:12 PM #17
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    Pedro_The_Swift is offline The MOD Father
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    Thats pretty normal.. try a reseller...
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]
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  8. 7th May 2025, 05:02 PM #18
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    Quote Originally Posted by Pedro_The_Swift View Post
    Thats pretty normal.. try a reseller...

    Anyone in particular you would recommend ?
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  9. 7th May 2025, 05:39 PM #19
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    roverrescue is offline YarnMaster Supporter
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    I’ve got nothing to add apart from you’re not livin’ till you ventilate a block
    And that is one seriously well executed ventilation

    But a little more seriously

    I hope that combo of pallet plus redneck engine stand and ventilated block sitting alongside your driveway is a true shrine and will not be unceremoniously sent to the scrappers !!!

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)
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  10. 18th May 2025, 12:47 PM #20
    Traco
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    Did you keep the 14 CUX ECU or go with the TRS recommended Haltech conversion? The former can handle the fueling ok throughout most of the rev range but it can struggle at the top end when it leans out. A Tornado chip will help of course and cheaper
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