Big cock yes - without a doubt. But nowhere near the 11x7 that the site boasts him to be.
Yes, he's a tall guy if the profile on the site is correct. But even with the height he's giving there he's probably measuring in "only" somewhere between 8-9" in length. He's about two hands in length, not quite up to his navel when hard and slightly less than halfway down his thigh - and those are all quite reliable indicators that he's in the range given.
That with the exception that he is truly gigantic in proportions of both hands, torso and femur length (which I really don't believe as those are usually surprisingly similar even between men of very different heights - femur obviously being the most variable as leg length is a big part in determining how tall you are)