440 Pistons, How F*cked am I

If it's a standard cast piston which it appears to be dress any rough spots & you'll probably be fine.... But... If it's a KB (Hypereutectic) piston there's no way I would chance it.....

But FWIW I fully agree with Rusty Rat Rod... I wouldn't take the chance... It costs a lot more to fix it after it really breaks...