Just got an evo motor for a build. Can anyone tell me what these numbers are? Located on the inner case. We know its XLH883. But looking for the year and whatever other info is here. I've attached a pic. Thanks!

 

Go to eBay and search for 24534 less the "-98" and you will get the left-hand engine case for a Sportster. 24558 less the "-98" should give you the right-hand case. 24470 less the "-98" or "-XX" for another year will give you the complete left and right cases as an assembly.

 

If there is a VIN on the outside of the crankcase, you will learn more. Those numbers relate to the bare unmachined casting, but may not be the part number for the finished crankcase, which could be something different. What sort of info are you looking for?