450r engine in 400ex frame

[waycott_259]

i know it can be done and all that..how hard is it to do? does it take alot of modificaion to the frame? espeically for the radiators? can anyone post some pics of it done?

[jeremy_283]

try a search.......... i know its hard with so many words but just search "450r engine 400ex" or sumthin

[400eXr1d3rZ]

Contact 1fst400 he did it.

Originally posted by 400eXr1d3rZ
Contact 1fst400 he did it.

[Mx_523]

Originally posted by 400eXr1d3rZ
Contact 1fst400 he did it.

[1fst400]

Originally posted by 400eXr1d3rZ
Contact 1fst400 he did it.


O, wait thats me...


If you can weld, and fabricate small parts, brackets such. Its cake walk.

Not that age has everything to do with it but I just turned 17 the other day. I did the transfer in a cuple weeks working on it off and on. and have spent another cuple weeks working out bugs.

My budie has a 06 450r. My altho I have less power my quad performs way better, but I also have aftermarket suspention. so its a hard comparison. But I wouldent ever trade. event if he did have suspention work. I like how low my quad feels.

[Toadz400]

That's pretty sweet. I loved how my 400EX handled but never cared for the 450R. It's always interesting to see the hybrids people come up with.