Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1978 |  | Víctor Merello | MF |  | Lota Schwager | Lota Schwager |
| 01/1978 | | Eduardo Jiménez | FW | | Lota Schwager | Lota Schwager |
| 07/1977 |  | Baudilio Jáuregui | DF |  | Defensor Sporting | Defensor |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1978 | | Juan Olivares | GK |  | Santiago Wanderers | Wanderers |
| 01/1978 | | Francisco Valdés | MF |  | Colo-Colo | Colo-Colo |