Technical Old GM part number: Where can I find info?

I have an old NOS aluminum part pump for a SBC. It has the part number on it, but I am having trouble finding any info on it. Can anyone out there help out?
This is the part number cast into it: 14041008 and here are some pics of it.

 

I don't know about the number, but it's probably something like this. What is the casting date, on the other side of the pump?

http://www.rockauto.com/catalog/x,carcode,1041220,parttype,2208

 

I found P/N 14047008 - any chance your "1" is actually a "7" ? If so, it for an '84-'91 350-8 Corvette, according to the book "Cars & Parts Chevy V8 Engine Casting Numbers 1955-1993".

 

huh, i was right.

 

I believe you are right about the '1' actually being a '7' upon closer inspection.
Thanks.
r