help me identify my ls engine

[structures]

If you knew the transmission that was mounted behind it that would help provide a clue. My engine/tranny were purchased together and the combo was sold to me as a like an 04/05 5.3 4l60e, but I later saw the head gasket tab with the 4.8 stamped into it, then after reading the crank casting number verified it was a 4.8. Later down the line I changed the oil in it. Went to put in the oil filter and the one I bought like 06 and older (ac delco pf46... i think) turned out not to fit. After buying some other filters it turned out the filter that fit mine was for an 07 and up. Then I noticed my transmission case had a character code that started with 7. Which I later found out represented the model year 2007. So as of today I'm assuming I own a 2007 4.8l 4l60e until proven otherwise.

The whole LS swap has been quite the learning experience for me. It's been fun though.