400ex motor

[zedicus00]

anyone got a 450 and a 400ex? can you get the height and measurements off of the 400ex motor and see how it would fit in the 450r frame?

i got a chance to pick up a 450r roller and i know where i can get a good 400ex engine for dirt cheap. trying to decide if its worth doing.

[CJM]

Usually its the opposite, they swap in the R motor into the EX frame. Its been done before that way (R into EX frame) so I dont see why it wouldnt fit the R frame. Custom motor mounts and exhaust will be needed of course.

[zedicus00]

i can make front mounts and stuff as long as the swinger bolt goes through and the sprockets aren't miles off. plus i would be loosing the radiator. i know it would not be the fastest quad but i think it would be a nice easy to ride trail quad.

[Pittsburgh400ex]

It would certainly.be light/nimble. Probably around 60-75 pounds less than a 400.
Might have an extremely.choppy ride cutting that much weight and not modding the suspensio.

[quad2xtreme]

You can mount a 450 swingarm into a 400ex frame and 400ex engine using 400ex spacers so I would think the 400ex motor would fit into the 450r frame just fine. There aren't any chain alignment issues with the 450r swingarm and carrier in the 400ex frame so I don't think you should run into alignment problems putting the 400ex motor into the 450r frame.

[brewster426]

I'm betting the frames are extremely close around the motor area. Nerf bars interchange..Swingarm bolt is the same.