I own a 2000 400EX but would much rather have a 250R. I have several options. I could trade for an R or sale my EX and then buy one. Or I could just take out my existing thumper engine and put a 250R engine in its place. Is this a better way to go? Would there be room for the radiator? Would this be a smarter thing to do than get a 10+ year old 250R. I mean the chassis is newer on the EX and my be even better right? But I dont know, If anyone has any suggestions or comments to any of my questions it would be greatly appreciated. Thanks
RIDE IT LIKE YOU STOLE IT

2000 400EX DG alum nerfs, alum handlebars, DG skid, and Works AT Steelers triple rate w/ res

 

U CAN put ANY motor in ANY frame if U just have the patience and money to do so I myself say if U want to go for it but the 250r does sit lower then the ex which really helps on a mx track well hope this helps.


86 trx250r wiseco .20 piston,boyeson reeds,porting work,FMF gold series fatty pipe,power core 2 silencer,DG alloy series nerfs,durablue eliminator 2+2 adjustable width axle,durablue posi loc axle nut,uni filter,nac's casesaver, motion pro twist throttle,motion pro clutch cable,motion pro kill switch,PEP easy pull clutch perch and lever,white bro's white power shocks with fully adjustable res's and spring load adjuster,all the way around,21/7/10 holeshot on wideoff set ITP .190 wheels,20/11/9 6 ply razr's on ITP .190 wheels,18/11/8 holeshot mx's on mitchell .190 wheels,LSR triple row taper bearing carrier,new a-arms and swing arm on the way. remember RIDE RED.

 

I recently seen a 400ex frame with a 250r engine in a mag but I can't remember which one??????