Please help me id this block. Quick and easy

Someone please help me find out what kind of block this is. I looked for the casting numbers near the starter and all I could find was this:

5 (big)
FISE
BB

then near where the bell housing lip on the block is:

4D2

I can find no other casting ID's on the block except two circles with numbers in it.

Thanks

Come on, help me out