This paper proposes an analysis of the social bloc that could support the political strategy of a radical change of socio-economic model in France. The bloc bourgeois would gather the most well-off and educated groups of the traditional left and right social blocs that had structured French political competition until then. The analysis is based on French survey data on policy preferences. With the help of a latent class model, a partition of the French electorate in several clusters is analysed. This sheds light on the composition of the respective social bases of the left and the right as well as on the possibility of existence of the bloc bourgeois.