The Hammers eliminated Liverpool from he FA Cup fourth-round with a last minute goal in extra-time from Angelo Ogbonna to win the game 2-1.
Bilic is fast becoming a bogeyman for the Premier League giants stretching back to his time as Besitkas manager.
The Black Eagles knocked Liverpool out of the Europa League Round of 32 last season on penalty shoot-outs at the Atatürk Olympic stadium.
The Reds were also favourites going into the Europa League tie last season as they were against West Ham.
“I will never forget Liverpool we were fantastic and faced a top team who were favourites,” Bilic told Fanatik.
West Ham beat Liverpool 2-0 at Upton Park to record their first double victory in a single league season over the Reds for the first time since 1964.
Slaven Bilic was appointed Hammers boss over the summer after parting ways with Istanbul giants Beşiktaş.