I think we went through this before. didn't we?
Tractive Effort and Horsepower are different animals. Tractive Effort is the ability to start a train from rest. Horsepower is the ability to take that same train and run at speed with it. A steam locomotive, because it has a direct connection between the cylinder and drive wheels, makes more horsepower the faster it runs. The limitation is the boiler's ability to make steam.
A K36 climbing Cumbres as 11 mph with 235 tons on its tank is about at its maximum horsepower. The boiler is taxed close to its limit. But it also at its limit at 15 mph with 200 tons on its drawbar. It still sucks coal and water as fast as you can feed it and just won't go any faster without losing steam or water.
Diesel Electrics, because of the generator/traction motor drive, can put their full horsepower down at very low speeds, as long as traction can be maintained. In theory, a diesel can put down its maximum horsepower at 1 mph. Of course, you will over load the generator, traction motors, etc. As Speed comes up, the horsepower output drops on a diesel. Many modern steam locomotives, could run a way and hide from a diesel of the same horsepower rating, because when the diesel was starting to run out of horsepower at 25 mph, the steam locomotive was just coming to life.
This is why a steam locomotive will pull a train it can't start and a diesel will start a train it can't pull any distance without damage.
To answer the above, according the 1930 Locomotive Cyclopedia, a K36 makes 1406 cylinder horsepower.