look no hands

ok I'm trying to post some pics of the motor so I can ask a question but I can't find the stupid camera's usb wire so the pic will have to come this afternoon when my daughter comes home.

But I'll ask the question anyway, how far down is a piston in the bore of a 400 because this motor the pistons are flat with no valve relives and at TDC this piston is around .080 down, is that about right or has something been done???