Former U.S. Ambassador to Chile Edward Korry intends to ask to testify at Senate hearings on the nomination of Theodore C. Sorensen to be head of the Central Intelligence Agency "to lay out . . . what I think should be known to the public" about U.S. Chile relations during the 1960s and early 1970s.

Korry, ambassador to Santiago from 1967 to 1973, has been a center of controversy over his role in U.S. efforts to unseat Chile's Marxist President Salvadore Allende.

In an interview last night on "60 Minutes" (CBS, WTOP), Korry charged that U.S. anti-Allende efforts date back to the Kennedy administration.

He charged that President Kennedy asked David Rockefeller in the spring of 1963 to set up a group of multinational corporations to support American policies. But Robert F. Kennedy, "as head of the - as overseer of all of our covert actions in the world, began integrating these members of this business group into the covert operations of the United States throughout Latin America and elsewhere," Korry said. "He thus legitimized the multi-nationals' passing money to foreign politicians, to bribing foreigners.

"This is long before the Lockheed scandal. He legitimized all these things as Attorney General of the United States."

Korry contends that his testimony before Sen. Frank Church's intelligence committee is being "bottled up" because "my knowledge would embarrass and compromise highly placed individuals . . . and certain political cliques."

In seeking to testify on Sorensen, a key aide to President Kennedy, Korry said he intends "not to oppose him, but to ask the questions that these matters bring to . . . the public's mind."

During the interview Korry also:

Contended that Allende took $500,000 in bribes from multinational companies.

Accused Vice President-elect Walter F. Mondale of being "less than honest" about his knowledge of events in Chile.

Said that President Nixon vowed to "smash" Allende, but told Korry it would be through economic pressure.

He told of a meeting with Nixon at which "the President approached me and stopped me just in front of the doorway, as the door closed . . ., started to bang his hand and said, 'That SOB, that SOB,' and I must have looked astonished, and he said to me right away, 'Not you Mr. Ambassador, you always tell it like it is. It's that bastard Allende.' And then he led us over to his desk . . . and then the President launched into a monologue of about seven minutes, saying how he was going to smash Allende."