Iowa heavyweight Lou Banach slammed his opponent to the mat and pinned him in less than two minutes last night as the fillip on the Hawkeyes' sixth straight team title at the NCAA wrestling championships in Oklahoma City.

Navy's hope, John Reich, lost the 167-pound final to Oklahoma State's Mike Sheets, who was so good he was named the meet's outstanding performer.

Iowa had four individual winners and 155 team points, the most in the 53-year history of the tournament. It was the eighth team championship in nine years for Iowa.

Oklahoma State was second with 102 points. Iowa State was third with 94.25, followed by Oklahoma with 64.75 and Lehigh with 49.

Sheets, a junior at Oklahoma State, outscored his five opponents, 68-3. Reich advanced to meet him by defeating North Carolina's Jan Michaels, 8-1.

Banach's pin was the icing on the cake for Iowa, which had clinched the team title after Friday's round, and came minutes after Ed Banach, Lou's brother, upset top seed Mike Mann of Iowa State at 190 pounds, 4-3. The No. 1-seeded heavyweight scored his pin against arch rival Wayne Cole of Iowa State at 1:57.

Oklahoma's Mark Schultz and Iowa State's Nate Carr became three-time individual champions. Schultz downed Iowa freshman Duane Goldman, 4-2, and Carr overcame Oklahoma State's Kenny Monday in overtime.

Other individual champions for Iowa were Jim Zalesky at 158 and Barry Davis at 126.