New ninja zx400rr with 600 engine

[moto.rhi]

Hello,

Has anyone fitted a 600 lump to one of these new 400's? I know most will say just buy a 600, but I'm just wondering if anyone has? Thanks

[Ghs]

Have you rode one ? , I know loads including 1000 cc sport bike riders who absolutely loved my zx4rr , they loved the fact you didn’t have to just turn the throttle to go fast , you had to ride the nuts off it to go fast , to me putting a 600 engine in it defeats the point of it , it’s all about that small screamer engine , reving the nut off it .
That said in a year I just became more frustrated with it by the day , so I get where you’re comming from , but to me it is what it is , to put a 600 engine in it would just defeat the point of it
But best of luck to you if you do go down that route , pics would be nice .

[Ghs]

My other thought is it really that special a bike to go through all that work , other than the engine I’m not sure the rest of the bike is anything special to warrant the work involved in fitting a 600 , will it even fit as i found the 400 physically small
One of the YouTube lads was waxing lyrical the other week how brilliant his zx4rr was , 6 months later he’s trading it in for a superduke
Stick a zx10r motor in iit , that would be fun !!
As I said best of luck with your project if you go down that route

[Steve Bass]

Very unlikely the 600 mill will fit in the 400 frame...

[johnsmith222]

Agree with just buying a 600c bike. I think fitting a larger engine pretty much defeats the purpose of the bike, and you'd be better (and likely cheaper) to just get a 600 to start with.

[ssray]

It's a lot of work, the old fzr400 with a thunder at engine looked good, but that's more roomy tham a modern 400.

Probably the same amount of work to fit a zx10r engine to a zx7r, not a morning's work

[cirian75]

I don't think this is going to like the old ZX9R engine swap into the ZX7R of decades past.