I’m 5’3 and weigh 135. Is 800cc Possible? Could I have my dream boobs? (photos)

Based on the photos you  sent 800 cc implants will do the job.  You may  even be quite happy with them.  However I have seen many patients with large implants who think ten or more years later “what was I thinking”?  They will sag and stretch the skin over time.  I suggest  going with something around 500 but ultimately it’s your choice.

You need a formal evaluation by a licensed plastic surgeon and expert in breast augmentations to determine what is best for you and your goals.
Proper breast enlargement is not a ""cookie-cutter"" procedure where the same technique is applied to every patient. Every woman who comes to my practice has unique needs and different goals for her breast augmentation. As a board-certified plastic surgeon, I always listen carefully to each woman's concerns and thoroughly discuss the key points of the procedure. I also take into account their overall height and weight, the size and shape of the underlying chest and ribcage, the tightness and elasticity of the skin, and the amount of natural breast tissue. Prior to the procedure, we discuss and make decisions regarding location of the incision, whether to place the implant under or over the chest muscle, and what type of implant to use (I offer multiple types of silicone gel breast implants, as well as saline implants).
My experience performing thousands of aesthetic breast surgeries in a wide anatomical range of patients enables me to achieve consistently beautiful and natural results that are customized to each patient’s body type and goals. These results are the product of extensive communication, meticulous planning, and skillfully executed surgery.
I suggest consulting with a board-certified plastic surgeon and expert in Breast Augmentation surgeries. - Dr. Cohen

Hello, thank you for your question.  A board certified plastic surgeon will be able to guide you to the correct size implant measurements and desires measurements of the chest wall and breast imprint width as well as knowledge of all breast implant sizes and profiles should make this process easy. Try on a profile bra with various saline and silicone cc sizers your PS recommends under a tailored blouse, tank top, bikini, workout clothes, and other garments you typically wear so that you have the best idea of whether the garments fit as desired with the implant selected. Schedule an email, Skype or in-person consultation for proper evaluation.

Without a direct examination, it is impossible to say whether 800cc is the correct volume since there is much more to the implants.  The width/ height/ projection/ volume all play an equal role, and only through a direct examination and thorough discussion with your surgeon will you come to the best implant to help reach your goals.  The best thing to do is to have a few consultations with board certified plastic surgeons, even if you have to travel a little outside your area.  Please see the below link for examples of outcomes.  I hope this helps.

Dear LadyDeee,
Breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient. When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

There are volume limits based on anatomy. There is only so much size that a breast envelope can accommodate. Occasionally, in cases where patients are seeking very large volumes, staged expansion may be employed or serial augmentation to gradually develop more space.
That being said, I do caution against pursuing such large implants. The risk of complications increases with volume (with risks beginning to increase after 400-500 cc). Regardless of patient size, 800 cc is a large implant and represents a significant tissue stress (nearly 1 and 3/4 pound per side). This may be one of those decision that an individual increasingly regrets with age.Based on your photos alone (without the benefit of an exam or measurements), 800 cc would appear to be too large for your frame. 
As always, discuss your concerns with a board certified plastic surgeon (ABPS).
Donovan Rosas MD
Board Certified by the American Board of Plastic Surgery
Member: American Society for Aesthetic Plastic Surgery, American Society of Plastic Surgeons
RealSelf Top 100
RealSelf Hall of Fame

Hello and thank you for your question. You are a great candidate for a breast augmentation.  800cc is a large breast implant size.  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.  Best wishes and good luck. Richard G. Reish, M.D. FACS Harvard-trained plastic surgeon

800cc is too big. Especially given your frame. Extra large implants stretch the breast tissue excessively over time and less to irreversible changes. Consider a more moderate size and you will be better in the long run in my opinion 

Thank you for your question and photographs.  Breast implant selection is an exciting, but stressful part of the breast augmentation process as there are so many choices. Unfortunately it is impossible to recommend the best implant style, size or shape without an in-person examination that allows for the measurement of key breast parameters, as well as permits an in-depth discussion as to your desired goals and outcome. I would recommend seeing additional ASPS board certified plastic surgeons to ensure that the implants you decide upon are the right ones to meet your expectations.  It sounds as if it may be wise for you to "try on" several of the implants so that you can have a better visual representation as to what they would look like as 800cc implants are quite large and come with an increase in risks.  Best wishes! 

I recommend an in person evaluation by a plastic surgeon to be measured and discuss your goals. After I measure and discuss goals with my patients, we then look at pictures of women with similar measurements with different size breast implants. My patients tell me that this process is very helpful in determining what size breast implant is right for them. 
Dr. Ted Eisenberg, Board Certified Plastic Surgeon and Author             
RealSelf Distinguished Hall of Fame Inductee