they may work...since you are moving from the civic std (70hp model 4spd manual) to the civic dx engine, you will have to swap knuckles b/c it had the weaker axles with smaller hub splines (just like the crx hf models)

i'd suggest getting some rebuilt axles for the new engine/drivetrain from a autoparts store...they are pretty cheap when you bring in your old axles (give them the old std's b/c you won't need them anymore)