What Year is My KA24de?

[Paradoxxx]

I was looking at the stamp by the exhaust headers; it read 10 and 01 and I was wondering if these are the time stamps of the manufacturer date on the head. I searched around for a while and wasn't able to find a chart of the years of the ka24e/de. If anyone knows how to tell the years apart of the block and head that would be great, because i have the end of a ripped wiring harness for a s14..... and don't know if the head is originally internal ignition coil (96^) or if the distributer was replaced with an external ignition coil(which i have at the moment) or if it matters at all. I'm already done with the swap I just need a fuel injector and maybe an s14(?) ignition coil. Woulda been done awhile ago but we kinda ran outa funds + beer..... Don't have a digi cam at hand but will soon post up pics if it would help. Help would greatly be appreciated, if anyone wants good karma heres the place to post bwahahaha This is my first s13 Nissan 240sx and my first dealing with a FR drive car.

[Paradoxxx]

where are the time stamps on the head and how do you read them?