GN400 engine into a GN250 frame???

[koba]

What a great idea.. can this be done with other bikes? Such as the Honda Magnas.. chuck a 750 motor on a 250 ride? Whats some other ones?

old steel frame GSX-R 250 can fit an impulse (REPULSE!) GSX400 motor.
Needs electrics and everything from 400.
400 doesn't make all that much power but I'm sure It would result in lots more torques!

Ultimate 250 swap is a KLR600 into an NSR frame tho! WeeHeeHeeLies!

I have one for sale, see profile pic.

[Alexofbbulgaria]

other option with gn's is change the bore piston head etc to dr350....bolts straight on.

Hi, my GN250 engine has a terrible rattle and i want to replace it. Instead of replacing it with another GN250 engine i was thinking of doing something like this. Could you please give me a few more details as to the work that will be involved and what parts i need to search for. Does it really bolt straight in or is their a little bit of work needed.

Thanks