  We analyze long-distance contributions to the K --> pi pi amplitudes relevant
for the Delta I = 1/2 selection rule in the framework of the 1/N_c expansion.
We use a modified prescription for the identification of meson momenta in the
chiral loop corrections to gain a consistent matching with the short-distance
part. Our approach involves a separation of non-factorizable and factorizable
1/N_c corrections. Along these lines we calculate the one-loop contributions
from the lowest order lagrangian. Our main result is an additional enhancement
of the Delta I = 1/2 channel amplitude which we find in good agreement with
experiment.
