Of course! Red heads are all hung like bulls!
Seriously tho, I am sure its just case of your brain giving your preference for a particular type or look some semi-rational explanation. As the only redhead in my early years at school and constantly razzed about it, it came as a pleasant shock to find in my late 20s that some guys go crazy for redheads, and think we are hotter and sexier men because of the colour of our hair (who knew?).
My observations of my own tribe at the gym and beach etc lead me to think that - like everyone else - we come in all sizes. Altho, ahem, I havent had any complaints....