The engine in the back is a 235, can't see the side of the one under the hood well enough to tell. The 216 has a high side cover, it goes right up to the valve
cover and the plugs go through it.
The dipper engines have a three bolt plate on the manifold side, just above the pan rail. it's about three inches long, two inches high. The pressure lubed engines don't have this plate at all.