Steps are wider and takes up more space on the sides next to the walls. Two latches are on top to the inside. I dont think there were any hooks on the bottom, just the weight keeping it in place.From what I can tell there is no difference in walls to either side or the area directly over the engine. Just different steps.

See H356 engine cover steps

2003 H356 engine cover. Wish I had a better photo.

See Getting at oil dip stick

This appears to be the same problem that exists on the H356. Doesnt look as though there is any more room to work on the engine. The starboard wall is still in the way to see the dip stick hole.

See Different view of engine cover

I was having to hurry. People were trying to inspect the boat and I was taking it apart. Not sure if these steps have a weight difference compared to the H356 steps. Still Heavy and bulky to move around.