Kurtz, the engine room is just a quick looped animation of a photograph with a couple of the lifters copied and pasted then moved and rotated a little - done in Photoshop - as you might expect. If SH3 could display a GIF file, then it could indeed be put into SH3, but whether SH3 can actually do that is another matter!
With regards to a sequel Joea, you might like this one too - not done by me, but this really is hilarious:
Chock