Mopar 360 piston identification
I opened up a spare 360 I have to see what was inside a couple weeks ago. I confirmed it has stock bore size and stock stroke. Everything else on the motor has been bone stock so I can only assume these are stock pistons. Mine seem to be sitting a little in the hole just like yours are. Your pistons look slightly different with the locating hole in the middle but otherwise look like stock replacement pistons to my eye.
Take a wire wheel or brush (carefully) to the top of the piston to see if it has any numbers on it
I opened up a spare 360 I have to see what was inside a couple weeks ago. I confirmed it has stock bore size and stock stroke. Everything else on the motor has been bone stock so I can only assume these are stock pistons. Mine seem to be sitting a little in the hole just like yours are. Your pistons look slightly different with the locating hole in the middle but otherwise look like stock replacement pistons to my eye.
Take a wire wheel or brush (carefully) to the top of the piston to see if it has any numbers on it