A 400 B engine has a 4.34 bore and a 3.375 stroke. Mechanical advantage with this stroke would be .265. Given the same linear force of 1000 pounds this would produce 265 ft/lb. torque. This is bested by the 360 LA!
Boring/stroking and gearing were not in the OP's question, although they are an interesting topic. We would best get back on topic.
