Help Identifying this Block

Here is my son's 91 360 engine. It has a lower casting number, so yours must be later, like 92 as suggested earlier. Here's some pics of what the 91 engine looks like...

View attachment Ken 360 E04 B.jpg

View attachment Ken 360 E06 B.jpg

View attachment Ken 360 E11 B.jpg

View attachment Ken 360 E13 B.jpg

View attachment Ken 360 E01 B.jpg

View attachment Ken 360 E02 B.jpg

View attachment Ken 360 E14 B.jpg

View attachment Ken 360 E15 B.jpg