M. Bloch was a major aircraft manufacturer in the first half of the last century. It is known that they built at least one engine for their own aircraft.

From Appendix 6: As was the case with the Lioré et Olivier LeO-45 engine, which appears as manufactured by that company (see main text) and which proved to be an adaptation of the engines of their LeO-45 aircraft to be reused on the large German Me-323 transport aircraft during the German occupation of France.

-Something similar happened to the Bloch engine.

-Bloch, which was also mainly dedicated to aircraft manufacture, had its the Gnome et Rhone 14N engine adaptations (the same engines as in the case of Lioré et Olivier).

-They gave 1180 hp and went to the Me-323, D-1, D-2 and D-6 series.