XT piston specs needed?
 

My old XT550 is smoking pretty heavy, I've going to have to tear it down.
so since I'm at it I'd like to bore it out and use an XT600 piston.
Now the question.....
XT550 uses a smaller wrist pin than Xt 600, does anyone know the diameter of the wrist pin on each?
I'm thinking of making a sleeve to make the 550 pin fit the 600 piston.
Thanks