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???

My 400 has flat tops with valve reliefs. Maybe yours have been replaced? Since mine is locked up I can't tell how far in the hole they'd be but for the most part .060-.080 in the hole is about the norm on smog era Mopars. Real low compression in other words.