Resin cast replacement or upgrade engine for your scratch builds or replace the basic kit part from 60-90's era model kits.
B-17F/G and variants
Martlet 1 & IV
Curtiss SC-1 Seahawk
Ryan FR-1 Fireball
This is just a few better known WWII era aircraft that used this engine.
Note: Back of the cylinder heard are pre-drilled for the exhaust.