Costly, who scored twice in the 3-1 home win over Mexico in April, scored two more goals to give him five goals, the most in the Hexagonal. Pavon has four goals, tied with American Jozy Altidore for second place in the Hexagonal.
Meanwhile, Suazo, who returned to Inter Milan after a season on loan to Benfica in Portugal, hasn't played for the Catrachos since the Hexagonal opener, a 2-0 loss at Costa Rica.
The 27-year-old Costly, dubbed the Giant by the Honduran faithful, is the son of Anthony Costly, a star on the 1982 Honduran World Cup. He moved with his mother to Mexico when he was 14 but has bounced around pro clubs in Mexico, Honduras, England and Poland.
Pavon is on his fifth spell at Honduran club Real Espana in a career that has taken him to Mexico (Toluca, San Luis, Correcaminos, Necaxa twice, Celaya, Morelia twice and Cruz Azul), Spain (Real Valladolid), Italy (Udinese), Colombia (Deportivo Cali), Guatemala (Communicaciones) and the United States (Los Angeles Galaxy).
Aug. 12 in San Pedro Sula
Honduras 4 Costa Rica 0. Goals: Costly 30, 90, Pavon 50, M.Valladares 89.
Honduras -- N.Valladares, Sabillon, Figueroa, O.Chavez, Izaguirre, Guevara, Palacios, Turcios (Thomas, 85), Nunez (de Leon, 60), Costly, Pavon (Valladares, 71).
Costa Rica -- Navas (Gonzalez, 20), Diaz, Wallace (Ledezma, 62), Fernandez, Delgado, Centeno, Borges, Alonso, Sirias, Herron (Bolanos, 43), Saborio.
Yellow Cards: Honduras -- Palacios 25, Costly 32, Turcios 83; Costa Rica -- Herron 27, Wallace 44, Bolanos 86.
Referee: Marco Rodriguez (Mexico).