Boult (upper leg) and Taylor (calf) were injured in the drawn first test in Dunedin and missed the eight-wicket second test defeat to the Proteas at the Basin Reserve, which ended inside three days on Saturday.
Despite the humiliating defeat, Larsen said the squad would remain unchanged for the final game of the three-match series at Seddon Park in Hamilton, which starts on Saturday.
"We've decided to go with the same unit," Larsen told reporters in Wellington on Monday.
"We've got 100 percent faith in the fact we think we've got the best group of test cricketers in the country and we've got a test match to win in Hamilton."
