An exercise that is often overlooked by many in the gym, is the pullover. It’s great for developing the bulk in the upper torso, and among the muscles worked are: the pecs (pectoralis major and minor), the long head of the triceps, the lats and serratus.
It’s considered by some in the bodybuilding world, to be an ‘old-school’ exercise; like anything, things go in and out of fashion. However, there aren’t that many core chest exercises out there, and yet the pullover seems to get relegated to the bottom of the pile or even omitted completely.
You will be able to achieve good expansion of the rib cage if you work through a full range of motion, and over a period of training will help to improve the overall physique of your chest and upper torso.