case serial number identification-where did the post go?

[kball1313]

I got a cracked case on one of my engines and I can't find who had the case numbers all laid out to identify the years. I have a spare case that has 5803251on the tag and my busted case is a 5902601. Anybody got this info? I know i've seen it somewhere.

I'm almost positive the cracked one is a '91 number.

[Uzi]

I thought Hamilcrf on the other site had a post with the serial number to year chart in it but that might have been just frame numbers not engine numbers.