He Still Holds the KO Record in The Heavyweight division.

The record for the most knockouts in heavyweight history belongs to Primo Carnera with 71 KO'S. Boxing buffs look him up its worth it. Carnera's career stretches from 1928-1946. During that time, the Italian would reign as world champion from 1933-1934. He finished with a record of 88-14 with 71 KOs.