Not sure mate, perhaps try your question on this forum instead?

 

http://www.boostcruising.com.au/forums/index.php?act=idx

Have you tried searching for a 4k or even a 5k? straight fit! unless this guy thats selling the KE30 has f'ed around with the mounts to accomidate the sr20.

maybe the first place u should start is the rta website and check out the vehicle standards

when putting a larger engine in a car you are alowed 15% engine capacity increase without an engineers certificate

anything bigger will have to be engineered which means can't be driven on p plates

there is a formula in one of the standards documents that has the formula to calculate the maxmuim size engine that can be put in a car

u need the weight and i think the largest engine that came with that model.

for a ke70 i think the largest n/a motor is 2.4l and turbo 2l

with a ke30 being lighter than the ke70 it might not be possible to put a sr in legally

You can legally put any EFI 2L Turbo motor into Datsun 1200 Utes in NSW,

 

The P plate laws is what has got you for road use

Did you buy that shell from blacktown for 900 ??

call the engineer that you plan on using, it really is that simple...