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Thread: RB30 block prep for 25/30 conversion

  1. #1
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    VL berlina

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    Default RB30 block prep for 25/30 conversion

    hey guys, ive ended up buying another vl and im going to do a 25/30 conversion on it but im keeping it n/a. i have all the head worked out but with the bottom end im not too sure on how to go about it. im going to buy better pistons and rods but where would be a good place in sydney to take it to get all the work done? what would accually need to be done to the block? i have a bit of cash to play around with

  2. #2
    VR_Acclaim is offline Banned
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    Vr acclaim

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  3. #3
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    VL berlina

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    its not your money so why do you care? im trying to do something different.

  4. #4
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    VR V6 turbo 4speed

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    yes its different but in NA form you may as well push the thing. the 25 head responds VERY well to boost. and by putting a smaller head on a big motor you will actually send your power backwards without FI. if you want different bolt an M90 to a stroked 30? RB33DESC?

  5. #5
    87RB30VL's Avatar
    87RB30VL is offline Your mum's new boyfriend
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    87' VL SL

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  6. #6
    detox_nath83's Avatar
    detox_nath83 is offline Another VL Driver
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    VL Turbo Commo
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    just build a bullet proof rb30 forged motor.. should c good numbers. with a decent turbo gt35/40
    alot of work with conversions ecu looms etc.. all a headache but your cash, your plans so your call basically etc..

  7. #7
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    vy2 clubsport

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    Staying n/a detox........


    Like most said I wouldn't bother but it's your $$$$

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