First tested in 1941 the Crecy was a V12 liquid cooled sleeve valved two stroke.
At 1593 cu. in. it was a little smaller than the Merlin displacement, and had the blocks spaced at 90 degrees.
It was expected to develop over 3000hp but it suffered from severe piston overheating, and Hooker concluded it could never compete with 4 strokes in output per unit piston area.
Source: World Encyclopaedia of Aero Engines by Bill Gunston.