Drag bike owners i have a question

[cowboyruss30]

i had my cylinder and head milled by but im still running the stock piston i am wondering if there is a 2 ring piston that fits the stock bore that wont hit the valves with the milling, help me out guys

[dtzalba450r]

you'll have to clay it to make sure, there is no way to tell unless you know how much was milled off the head/jug. the head gasket, piston brand and cams all play a role into what you can do.