The man known only as Kong, who claimed to have the world’s strongest neck, lifts 502 pounds. Another unusual feat of strength which he performed was having a partner smash bricks laying on his neck with a sledge hammer. Interestingly, “Kong” was also a vegetarian.
You’ve got to hand it to the oldtimers, they didn’t neglect training any area, a lesson that a lot of people could stand to learn today. Here’s the great Sig Klein using a neck developer of his own design. Interestingly, he also recommended a specific breathing pattern while training the neck — the neck muscles actually do also assist in respiration which is part of the development procedure.