Will a 450 cc look too big on b cup. I am 5.4 and weight 160 pounds.

Hello,Subjective proportion is not for us to determine. Go visit a few ABPS certified/ASAPS member surgeons who specialize in all forms of cosmetic breast surgery. What's important is minding your anatomic limit based on biodimensional analysis.  If you want to see what 450 cc looks like, get sized in the doctors office. Best of luck!

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  It would be helpful to know your individual breast measurements in order to give you accurate advice about implant size selection.  The size, profile, and shape of the
implant is based on your desired breast size/shape, your chest wall
measurements, and soft tissue quality.  This decision should
be based on a detailed discussion with equal input from both you
and your surgeon.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon