The Benz Bz.II (manufacturer's designation Benz Type FD) was a six-cylinder, water-cooled, inline engine developed in Germany for use in aircraft in 1913.
[1] With a displacement of 10.15 L (619.4 cu in) it developed about 75–82 kW (100–110 hp).
[2][3] It had cast-iron cylinders with sheet metal cooling jackets welded to them.
The two overhead valves per cylinder were operated via pushrods and rocker arms by a single camshaft embedded in the engine block on the right-hand side.
[3] Data from Angle[3]