From the front, sort of similar if you neglect the fact the pushrods are closer, but they look nothing alike from the top.
More ordinary Anzanis have a nice cover over the valve gear which JAPs as fitted to Morgans never did.
Ordinary Anzani Mog (Pete Thompsons car)
And a jolly good website with pictures of most Morgan engines.
Gerhard Kiesslings Morgan website My LTOW JAP
Hope that helps!