head gasket

[utah250r]

I need a head gasket for a stock 250r cylinder that is bored 80 over. I was told that the stock 3 piece metal 250r head gasket won't work for a piston that big. What do you guys run for a head gasket in this situation. The one I have is from Eddie Sanders but they don't sell them anymore.

[Honda 250r 001]

I believe the Cometic gasket has a larger bore. Not 100 percent sure how big, but i know its atleast 1 or 2 mm bigger.