you dont know what your talking about neither cylinders have a bore of 246 and or 281. the bore is somewhere in the 70's, im not sure but the point of this reply isnt to say the correct size, but to know what your talking about before you open your mouth.

 

i stand corrected i looked at the displacement of the 2 not the bore but im noting saying that is a excues i was wrong

john

 

No problem Exlax, I'm usually wrong once each day before I even get out of bed.

 

what u do is buy a 300 ex cylinder and connecting rod the ex cylinder is taller then the X

the ex rod is longer then the X

use X crank ex rod & cylinder
stock X piston and youll have 282cc. (stock 300 ex size)

 

no you don't monkey displacement is based on the stroke not the rod length
the 2 cylinders are the same