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Thread: BA 4.0 Barra

  1. #1
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    BA 4.0 Barra

    My mate has a v8 disco the motor has seen better days he has a BA xr6 turbo that was hit in the arss end and was wondering if the motor and auto would fit as the xr6 motor is in very good nick. If anyone has done it how hard is it to do and any ideas on extra parts that are needed thanks.

  2. #2
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    Big fan of the barra motor, so it is a yes from me
    PaulT

    REMLR 256 / SLOw 4 (P)

    W/Shops/trailers & GS's
    RRs, Disco's, 110s & 109s.

  3. #3
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    Doubt it would fit. Short V8 versus straight 6.

    Cheers

  4. #4
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    Some pics I took last month of an 80 Series Tojo with probably the best motor it will ever have.

    80 Barra.jpg Barra 3.jpg
    PaulT

    REMLR 256 / SLOw 4 (P)

    W/Shops/trailers & GS's
    RRs, Disco's, 110s & 109s.

  5. #5
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    Nice. Smooth motor. The XR6 is a weapon. Cheers

  6. #6
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    Heavy bulky engine. Would not be an easy swap. Bigger capacity than a Disco's V8 and turbocharged as well. Might be hard to get approval from the rego. authorities. Plus side is that he already has it. If you had to buy an engine in I would favour an aluminium SBC.
    URSUSMAJOR

  7. #7
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    Quote Originally Posted by Bigbjorn View Post
    Heavy bulky engine. Would not be an easy swap. Bigger capacity than a Disco's V8 and turbocharged as well. Might be hard to get approval from the rego. authorities. Plus side is that he already has it. If you had to buy an engine in I would favour an aluminium SBC.
    Both (approximately) 4 Lts. Approvals (legit ones) are not that difficult. Have a mate up here with a 2.5 hemi Daimler motor in a Morry.
    PaulT

    REMLR 256 / SLOw 4 (P)

    W/Shops/trailers & GS's
    RRs, Disco's, 110s & 109s.

  8. #8
    Homestar's Avatar
    Homestar is offline Super Moderator & CA manager Gold Subscriber
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    BA 4.0 Barra

    A mate just stuck one in his XP Falcon wagon which looks like poo but geez it doesn’t half haul now - brilliant sleeper. BA 4.0 Barra
    Last edited by Homestar; 20th July 2019 at 08:32 PM.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  9. #9
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    Son had one to put in a Patrol some years ago but back then adaption..ecu issues etc was not an easy fix so he sold it on.

    Nowadays all those issues are more or less sorted so he regrets selling it. Auto is pretty strong too.

    The best ones are the gas motors which will take huge boost and abuse.

    Plenty going into all sorts of cars now. ..lots in drag/ burn out cars of course as well as 4wds..f trucks etc

    Make me think Aus was stupid to let the local car industry evaporate😐

  10. #10
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    Whats the plan for it?
    The biggest hurdle might be adapting it to the Disco's transmission. I'm not sure what the similarities are between the ZF 4HP and 6HP. The Discovery 2 obviously used the 4HP but the Falcons later on used the 6HP. Perhaps a 6HP bell housing and input shaft fits or can be modified to fit the 4HP solving this issue? Alternatively the Disco could become rear wheel drive only (but then you'll have diff issues). Or maybe Territory transmission and what ever they use for AWD could be used?
    Given the Discovery 2 only had motors that were four or five cylinders long, the longer six might not have the room (if it was a P38A for the conversion that would be a different story though). Looking at my Td5 the vicious hub fan takes up a lot of room. Maybe the six will fit right close to the radiator and then electric thermo fans on the front side of the radiator could be used?
    I wouldn't think there will be an issue with width other than maybe fitting the turbo in there. Even a non-turbo Barra would be more poke than any of the standard Disco 2 engines.
    Not sure on the engine height. Probably ok, but the BBM (inlet manifold) is high. There's aftermarket plenums to suit or something custom might resolve that or creativity with the engine mounts.
    Obviously custom engine mounts and aftermarket ECU will be required. You might have fun integrating the aftermarket ECU in with all the other various CU's that the Disco 2 has for all it's systems.
    There's going to be lots of custom bits, fit and trial and readjust to get it done but likely maybe doable. Good luck. Will be interested to hear.
    Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
    Hers - MY12 L319 Discovery 4 2.7L TDV6
    Dads - MY12 L319 Discovery 4 2.7L TDV6
    Sister-in-laws - MY98 LJ Discovery ES 3.9L V8

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