The bantamweight contender Faber is moving up to face Edgar at 145, and both men weighed in at 146 for the main event.
In the co-headliner, Costtas Philippou will take on fellow middleweight contender, Gegard Mousasi, and the fighters came in at 186 and 185 respectively.
One fighter did not make weight, however, as Royston Wee weighed in at 137 for his bantamweight scrap with Ning Guangyou.
Here are the complete weigh-in results for UFC FN 66, which will be hosted by the Mall of Asia Arena in Manila, Philippines.
MAIN CARD (FOX Sports 1/10 AM/ ET)
Frankie Edgar (145 lbs.) vs. Urijah Faber (146)
Gegard Mousasi (185) vs. Costas Philippou (186)
Mark Munoz (186) vs. Luke Barnatt (185)
Hyun Gyu Lim (171) vs. Neil Magny (171)
Phillipe Nover (145) vs. Yui Chul Nam (146)
Mark Eddiva (145) vs. Levan Makashvili (145)
PRELIMINARY CARD (FOX Sports 1/8 AM/ET)
Tae Hyun Bang (156) vs. Jon Tuck (156)
Zhang Lipeng (155) vs. Kajan Johnson (155)
Li Jingliang (171) vs. Dhiego Lima (170)
Royston Wee (137)* vs. Ning Guangyou (135)
PRELIMINARY CARD (UFC Fight Pass/7 AM/ET)
Roldan Sangcha-An (126) vs. Jon Delos Reyes (125)
Nolan Ticman (125) vs. Yao Zhiqui (125)
*Wee did not make weight. He will be fined a percentage of his purse and the fight will proceed as scheduled