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Rb30 Bottom End On A Rb25?

Veilside-SaU
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Veilside-SaU Newbie

Veilside-SaU

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hey guys, it appears my bottom end is gone to crappers.

im wondering will a rb 30 bottom end bolt straight on...or the 25 head bolt straight on for that matter..

Do i need to use a vl turbo engine for the conversion since my rb25 is turbo? or will any rb30 bottom end be suitable? also

will my rb25det (automatic) gearbox bolt onto the rb30?

dunno if these questions are dumb or not. any info would be great thanks :no:

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https://www.sau.com.au/forums/topic/151595-rb30-bottom-end-on-a-rb25/
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Veilside-SaU Newbie

Veilside-SaU

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ok i might just clean that up a bit,

i currently own a Nissan R33 Skyline

Rb25det (automatic)

Bottom end is crapping itself

Im wondering what i would need to do in order to use a Rb30 block, If its even possible.. Sorry for any confusion

Would engine mounts be fine? Would gearbox match up? Would i be able to use the N/A rb30 block?

Is there any benefit at All in doing the 30/25 combined engine powerwise? or am i stupid :| :no:

DaemosR31 Apprentice

DaemosR31

Posted
Posted
ok i might just clean that up a bit,

i currently own a Nissan R33 Skyline

Rb25det (automatic)

Bottom end is crapping itself

Im wondering what i would need to do in order to use a Rb30 block, If its even possible.. Sorry for any confusion

Would engine mounts be fine? Would gearbox match up? Would i be able to use the N/A rb30 block?

Is there any benefit at All in doing the 30/25 combined engine powerwise? or am i stupid :| :no:

Its all do-able.

Lots of info on the R31 club forums about putting twin cam heads on rb30 blocks, and using rb25 boxes.

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