what should bore measurement be?

[rubbersdown]

Just bought a project 01 400ex for my wife and the guy said it had a 440 kit (sleeve). I am going to hone and replace the piston but I want to make sure its actually a 440 sleeve thats in it. What should the bore measure to if it is a 440?

[Pipeless416]

if its all bore, 89mm. i believe its actually like a 432 though.

[rubbersdown]

I know the piston is "89mm" but wondering what the actual bore should be so i can see if it has been overbored yet or if it is still the stock bore for the 89mm piston.

[rubbersdown]

My bore measures 88.88 Is that the stock bore for the 89mm piston?