In order to predict graphite damage rates for the NPE, it is necessary to have some knowledge of the neutron fluxes at various energy levels. In particular it is important to know flux levels relative to those existing where graphite samples have been irradiated experimentally. Three-group flux levels have been calculated for regions far from boundaries in the core of the NPR and of a K-reactor. The results reported here have been obtained from more detailed calculations using better cross section data than used in obtaining a previous set of values (for NPR only). The calculations of effective group cross sections for the reactor lattice still are not entirely satisfactory however, and it is hoped that some improvement can be made. Since any revision of the cross sections will affect the calculated flux levels, the values reported here should be regarded as preliminary. It is felt that the relationship between NPR and K fluxes should be fairly satisfactory, since identical calculational methods were used for both.