Ugh - everything is wrong with the description of that photo, which has been rippling through the internet for years mistakenly labeled. That is not a Wartsila RTA 96C engine, in fact it is an MAN engine, a competitor to Wartsila. It is nowhere near as large as the record holding 14 cylinder Wartsila RTFlex 96C, described here:

Largest marine engine | Guinness World Records

The engine in that photo is FAR smaller than a 96C.

Modern state of the art two stroke engines use exhaust valves because the engine is more efficient as compared to traditional 2 stroke cylinder ports.

Wartsila also holds the Guinness record for most efficient 4 stroke diesel engine, their new "31" type engine.

Rgds,
Chris W.
ex 95 E300D, 467K

__________________
Objects in closer are mirror than they appear.