The vessel underwent the Fleet Snorkel conversion in early 1952, after which she went on another Mediterranean deployment in the middle of the year. She arrived back in New London on 27 November, after which she resumed her training duties. These activities took the boat as far north as Halifax, Nova Scotia and as far south as Havana, Cuba. "Torsk" was transferred to Submarine Squadron 6, based at Norfolk, Virginia. From there, she served as a training submarine for anti-submarine aircraft and surface ships to practice detecting and targeting. "Torsk" frequently cruised in the Caribbean throughout this period. She made a visit to the Great Lakes by way of the Saint Lawrence Seaway in June 1959, visiting numerous ports in Lake Ontario and Lake Michigan. She arrived back in Norfolk in mid-August.