Is 800cc silicone implants too big? (Photo)

It si impossible to say what the appopriate implant size would be for you without examining you.  However, based on your pictures and information, it appears you will need a failry large volume just to see a difference in your breasts.  I would consult with a board certidied plastic surgeon in your area and go from there.  I hope this helps.

Thank you for your question.More information is necessary to fully answer your question.

To be sure what is right for you, see two or more experienced,
board-certified Plastic Surgeons for a complete evaluation to make sure you are
a good candidate and that it is safe for you to have surgery.

I hope this helps.

Thank you for your question and photo.  800cc implant is extremely large.  If you are not looking for pornstar fake, I would suggest a much smaller size.  You have a significant amount of natural breast tissue.  I would suggest and in-person consultation with a plastic surgeon to go over implant sizing.  Good luck.