TRX250 piston needed

Nebr_Rex

Coast to Coast
I don't need the piston, just a measurement off of it.
Seems my local cycle shop over bored my block by .5mm.
They did a nice job like usual but one to many turns on the mic. .
I gave them another block and everything is fine with that one.
To avoid having to scrap those liners I'm looking for some
69.5mm pistons with a 15mm pin and .960 in. pin height.
The closest I've found are Honda TRX250 EX pistons from
Wiseco. There largest size is 69.5. I need to find out if the
compression height is close enough to use them. Even though
the valve reliefs are clocked 90° like a BMW airhead. They are a
flat top and would make for a nice forced induction piston. My
alternatives would be a custom piston, bore it to 70mm/custom
piston or resleeve it, either with stock sleeves or to go larger yet.

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