Manager Jim Jefferies was delighted at the performances of Jamie Hamill, Ryan O'Leary and Willie Gibson in the 1-0 win at Easter Road.
Colin Nish got the decisive goal as Killie exacted revenge for the CIS cup final defeat.
The youngsters may be involved in this weekend's visit to Ibrox, with the injury situation not going to improve.
Jim said: "When you consider the number of players we had out, and that we left one or two on the bench to make way for youngsters, it was a very good result.