rod bearings, and main bearing question

i just cracked open my first 360 to start building and i noticed that the rod bearings were marked with the am on them but i dont know what all the numbers mean. From the looks of it the rod bearings are already 10 under but im not sure on that. and the main bearings were marked with a 001 which im assuming is a stock sized bearing nut again unsure. i have a pic of the rod bearings numbers i will try to post if not ill just post the numbers that are on it. thanks for any help in advance

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