440 big block ICON pistons, 440Source rods, Hastings rings
I forgot I had weighed each of the pistons with pins before having them hung on the rods and wrote the weights on the tops of the pistons. They're all around 882g +/- 1g. I didn't look at every single one because they're each individually wrapped in quite a bit of shipping paper and didn't feel like unwrapping them all but I can if needed.