
, G'day dane,
The Russian version of the Nomad had Shvetsov Ash-82FN engines with cowling bumps covering the rocker boxes. The Ash-82FN was a 14 cylinder 1850 hp fuel injected engine making the Russian Nomad the most powerful of all the Catalinas. The engines can be found in the ICM or Encore Tupolev Tu-2 kit. There are from memory no cylinders but the engines had an iris type cowl flap in front of the engine so you don't see the engine cylinders, a bit like the modern Veedeneyev M-14 engines. HTH.
Cheers,
Ross.