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View Full Version : crf450 engine fit 250r frame



chris46
04-13-2006, 03:58 PM
will a crf 450 engine or trx 450 engine fit in a 86' 250 R frame

TampaBoy813
04-13-2006, 04:16 PM
sure thing...as long as its a aftermarket frame....

chris46
04-13-2006, 04:25 PM
what if its a stock frame

wicked265R
04-13-2006, 04:34 PM
the crf motor is too tall. not even worth putting into a stock frame.

chris46
04-13-2006, 04:48 PM
ok thanks so if i were to buy a aftermarket frame a crf 450 engine would fit and be able to use my 250 parts

Cr85rRida
04-13-2006, 05:08 PM
yep as long as its a 250r based frame.

chris46
04-13-2006, 05:33 PM
do you think i would proably be better off buyign a new 250r frame and crf 450 engine then buying a new trx450 and makign it MX ready??

Mean250r
04-13-2006, 05:38 PM
Originally posted by chris46
do you think i would proably be better off buyign a new 250r frame and crf 450 engine then buying a new trx450 and makign it MX ready??

well, you would have a sick hybrid, or another 450r

chris46
04-13-2006, 08:12 PM
haha oopps i ment to say you think i should buy a aftermarket frame, then a crf450 and put my 250 parts on there, OR just buy a 450 and make it a MX quad

Cr85rRida
04-13-2006, 09:07 PM
if you want a hybrid, sell your 250r motor,pipe,silencer. Then sell your frame. You allready have an engine so use the money from the frame and motor and put that towards a aftermarket frame. Then put all your R peices back on it and your good to go.

chris46
04-13-2006, 09:29 PM
yeah i have 2 250 r engines so i can seel both and the frame to buy a frame and engine , but will the radiator hoses fit and all that

TampaBoy813
04-14-2006, 04:56 AM
heres a pic of my old CR450F hybrid
http://img119.imageshack.us/img119/7536/10009758zt.jpg
FYI my CT350R is way faster then the HyBrids I have had...you might wana keep the R and just get a motor build uP

chris46
04-14-2006, 09:35 AM
thats a tight pic, but ill proably get a 310 and ride my friends hybrid to see if theres any big diff. but what kind of engine and frame is in that hybrid

TampaBoy813
04-14-2006, 09:56 PM
Originally posted by chris46
thats a tight pic, but ill proably get a 310 and ride my friends hybrid to see if theres any big diff. but what kind of engine and frame is in that hybrid Warlock frame & 04 CR450F Motor...

Trx250rider86
04-15-2006, 08:52 AM
will any aftermarket 250r frame fit a crf450 engine?

TampaBoy813
04-15-2006, 10:44 AM
Originally posted by Trx250rider86
will any aftermarket 250r frame fit a crf450 engine? as long as its made for the motor.... :macho

Trx250rider86
04-15-2006, 12:27 PM
i can get this 250r/400ex lonestar frame from a friend for cheap, but will it fit, im not worried about motor mounts, i can make them, just height/width, and that other crap