1 FIELD TO 2 FIELD ALT
Yes but it will require so adapting the harness.
In a 2 field wire setup the blue wire provides 12v to one of the field wires and ( I think) one of the electronic voltage regulators terminals (the VR has to get switched 12v from somewhere)
The green wire goes to one of the electronic voltage regulators terminals and to the other field wire.
To convert to single field wire setup you need to feed the electro mechanical voltage regulator "I' terminal with a switched 12v feed ( might be the same that feeds the ballast resister, your cars wiring diagram will show)
Then modify the green wire to go to the F terminal on the VR, then to the single filed terminal on the alternator.
You might want to add the wires leaving the wires in the harness unmolested.
If you get a 70(????) up wiring diagram that has the electronic VR and compare it to your cars wiring diagram you will see the differences