So all the parts came this morning and i fitted them while at work. They was pretty easy to put in as i already had the K20 at the shop (were i bought mine).
Its now stroked to 2.6l and has a modified fuel rail to compensate for the extra capacity while the engine already had a aftermarket intake with k&n filter.
It hasnt been dynoed but Brian Crower say if the engine is in good condition it will make about 290-330 so im gonna have to book a dyno and tune it.
It also has quite a bit of room so i can definitely fit a turbo in there.