Here is some more comparisons. Since it was from a ’53 manual, they didn’t include Pierces
1953 Chilton Flat Rate Manual, Engine Specification Section
Packard Twelve……………473 ci…..366 lb/ft @ 1400 rpm
Cadillac Sixteen…………..431 ci…..324 lb/ft @ 1700 rpm
Lincoln K V-12…………….414 ci…..312 lb/ft @ 1200 rpm
Lincoln H V-12…………….292 ci……235 lb/ft @ 1800 rpm
