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I was considering doing a RB30 bottom end make the GTR 3L tt, but every1 said to much work, what yas all reckon?

Head is repairable.

Quoted $800.

Really need new block, turbos highflowed and head repaired. Most of the prices ive seen for this are more expensive then new engine, but i was very keen on doing the 3L convestion just to do sumthing different and working on the car for next 6months.

Every1 talked me out of it so far......how hard is it to do?

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I say rebuild will be cheaper than 7k anyway - plus with forgies!

Nah, it'll be $7k minimum with forgies + head rebuild + turbos.

exhale 32, 26 head on a rb30 is a bit mismatched. The flow of the head is more suited for high revs, and the rb30 bottom end is never going to do that with a 7000rpm redline. Not without a new crank girdle and/or billet crank anyway.

By mismatched I mean a decent rb25 head will actually give more power at part throttle than a rb26 head. The rb26 head only really comes into its own at full throttle (larger valves) and high revs (solid valve train).

Still, if you want to go for it, just find someone willing to build it. It is a bit of a hassel though, with the drilling of larger 12mm head bolt holes in the block, tensioner positioning and the extra 38mm on block height. This is all imho :P

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GOT BOOST I havent seen my dad in ages, ill ask him tonight what he's heard.

Do you think it'll be possible to have the whole engine completed with forgies and high flowed turbos done and installed for 7k?

What i need is.

1. Head rebuilt or new 1

2. New block

3. High flow turbos

What kinda price am i looking at just estimating.

Cause it might be cheaper just to buy a whole new engine.

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if your gonna be selling the car buy another engine complete with everything.(then dont let your mates drive it before you sell it) as for costing and rebuilt engine you'll have to speak to a workshop who specialises in building them.Or someone thats just had theirs done to the same extent.

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Have a rebuilder RB26 engine here with head complete, block complete and intake.

No injectors or exhaust manifolds.

$3K and needs a freshen only but that will still set you back around $3-4K

Cheers

Ken

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