Righto mate, like a RB28 is super different anyway, it's done all the time so they are deffinatly nothing special... Just buy a kit, slap it in and reap the displacement benefits..
I'd rather save the $3000 for another part of the car and stay true to the GTRs 2.6L displacement and see just how responsive I can make it while making some good power...
I could have bought a R32 or R33 and thrown the extra $30,000 I would save on the purchase price into the engine and stroked it and gone all out but I prefer the R34s alot more hence the reason there is a budget to this build... I own this car outright and I am using savings to modify it,not a loan or daddys money and I am not going to dip into my house deposit money for a few extra KWs, 450rwkw is plenty for the street in anyone's book so I am staying the 2.6 because I can pick up a crank for $600, pistons for $600 and rods for $800... Not the $5000 it would cost for a stroker kit...
There is alot of work going into the head porting, valve sizes, plenum design, manifold design and turbo selection to make this thing as responsive as a set of -5s with more power and a neater engine bay...