300sx???

[CanadianRednex]

Ok, ive got a 85 250sx and was wondering what could be done to make it a 300? Ive read that the 300 clynider is the same but its stroked diffrent or some other things, but need some feedback. Also would the rear end from a 300 make a diffrence?? Thanks

[ShaneNP123]

I think read somewheres that a swinger from a 300 fourtrax will make it +2.

[taz]

my buddy is going to use a 300 trx head jug and piston and i think he said rod!to make his 250sx into a 300

[Goat]

the swinger doesn't just bolt up... they are nothing alike.

the motor may bolt up...BUT you would have to swap the output shafts inside the motor if I'm not mistaken.

[ShaneNP123]

My mistake.

It's the 250 fourtrax swinger that will bolt up, adds about 2 3/4 inches but you need to fabricate a shock mount.

Heres a thread from 3ww: http://www.3wheelerworld.com/showthread.php?55740-250SX-differential-swap-!!!DONE!!!&highlight=250sx%20swap%20gears

[Travis68]

heyy would a 350 fortrack motor fit a 86' 250sx frame??

[ShaneNP123]

I doubt it.