ACW, this being a Victor thread . . .
As far as I know they were only BS. I believe Avro made sets of bomb doors and alternative fuselage skin to replace the BS nose indent.
When the Victor BS was converted by BAE it is possible they may have been able to get similarly manufactured bomb doors from HP, but as HP was long gone and they had some diff manufacturing the wings, may be not.
It would be interesting to know what BAE did when they did the conversions.