220bhp Evo 'K' Series Engine Assembly - £9800 (ex VAT)

above from ptp, i think it would make the Z a tad quicker off the lights??

I'm not sure, but it might not be suitable for road use? Might require rebuilds every so often, as with most race kit?

Still, it would be one shedload of fun :)

Someone's gonna do it, I can see that for sure.