350X motor in a 250x chassie.

[woodsracer144]

hey has any one done this how is it? whats the CC's for the ama?
are there any classes that you could run what ever? because i know theres the hetrck or something like that trx90/crf150f hybrid.

thanks!

[JIMFROMTEXCO]

you would have to run open or woodsman i belive. but it wouldnt be legal for production type races. the 90 crf150 or 90 cr85 is called the 90 mod class, for more experienced youh riders.

[woodsracer144]

ok, are those motors air cooled or oil?

i found one by me thats really cheap and i think im gonna take it,
thanks!

[JIMFROMTEXCO]

there air cooled with oil cooler. if possible check and make sure the cam journals are ok on it. heads are pricey

[woodsracer144]

where the cams would sit? who makes a aftermarket cam for these?


im thinkin about hookin this thing up fattystyle and buyin some LT's for the front, and rigin up a CR 500 link.
who makes a Big Bore kit for these? thanks!

how fast are these in the 250 chassie?

[JIMFROMTEXCO]

fst, pow-roll offer big bore kits (up to 454) without a stroker crank, you can get up to 502 i belive with a stroker crank.

web cams, and fst sell cams.


the cams dont have bearings and ride on aluminun and it chews the hell out of the journals if you dont keep nice clean oil in it.