Cowboys Gun Down Bills With 52-17 Win : Super Bowl: MVP Troy Aikman throws four touchdowns. Dallas forces a record nine turnovers.

It was quicker than anyone could imagine.

Three seasons ago, the Dallas Cowboys were the worst team in NFL history. Now they’re Super Bowl champions and they did it with four of the quickest touchdowns ever.

That left the Buffalo Bills as the first team to lose three straight Super Bowls and the NFC’s supremacy intact--nine straight NFL titles, seven in overwhelming fashion, this time 52-17.

With MVP Troy Aikman throwing for four touchdowns and Charles Haley and Ken Norton leading a defense that forced a record nine turnovers, the Cowboys, the youngest team in the NFL, scored two touchdowns 15 seconds apart in the first period of Sunday’s Super Bowl, and two more 18 seconds apart in the second.

That made Buffalo only the second team ever to make it to three straight Super Bowls--and the first team ever to lose three straight.

Two of Aikman’s touchdown passes went to Michael Irvin and one each to Jay Novacek and Alvin Harper as the NFC East won the Super Bowl for the third straight year, a record. The three winners were different--Dallas, Washington and the New York Giants--but the victim each time was the Bills.

There was another first: Jimmy Johnson became the first coach ever to win both a national college title and a Super Bowl just three years after he began his pro coaching career with a 1-15 record. For Dallas, it was their third Super Bowl victory, but the first in 15 years.

The Cowboys won on both sides of the ball. Emmitt Smith, the NFL’s leading rusher, ran for 108 yards on 22 carries and Aikman completed 22 of 30 passes for 273 yards without an interception.

After spotting the Bills an early 7-0 lead on a touchdown set up by a blocked punt, the Cowboys turned on the defense, getting five of the turnovers in the first half.

James Washington’s interception against Jim Kelly set up a 23-yard touchdown pass to Novacek. Fifteen seconds later, Haley knocked the ball loose from Kelly at the goal line to defensive tackle Jimmie Jones, who took two steps into the end zone for the score that put the Cowboys ahead for good.

Norton and Vinson Smith sparked a goal-line stand that stopped the Cowboys on three shots inside the Dallas 1--the last on an ill-conceived fourth-down pass from the six-inch line. Dallas defensive coordinator Dave Wannstedt--whose prowess helped earn him the head coaching job in Chicago next season--had a nickel defense in on the play and Thomas Everett intercepted Kelly’s desperation pass in the end zone.

Everett had a second interception in the fourth quarter that set up a 10-yard touchdown run by Smith. Then Norton scored--taking in a fumble from 9 yards out after it bounced into his arms following a high snap.

That first interception was typical for Buffalo.

With and without Kelly, who reinjured his right knee with 6:52 left in the first half, Buffalo couldn’t produce when it had to.

Frank Reich, who engineered the biggest comeback in NFL history when he brought the Bills back from a 35-3 third-quarter deficit in the wild-card game with Houston, had no such miracles in him this day, although he did throw a 40-yard touchdown pass to Don Beebe on the final play of the third quarter.

On his first series, Reich drove Buffalo from his own 33 to the Dallas 3.

But Haley stuffed Thurman Thomas on a third and one from the 3-yard line, forcing a 21-yard field goal by Steve Christie that cut the deficit to 14-10 with 3:24 left in the half.

It was the last gasp for the Bills.

First Aikman drove the Cowboys 77 yards in 5 plays, hitting Irvin for a 19-yard touchdown on his favorite slant across the middle.

Then Leon Lett stripped Thomas on the first play from scrimmage and Jones recovered on the 18.

And then Aikman found Irvin at the 2 and he stepped around Nate Odomes for the score. It came 18 seconds after the previous touchdown and sent the Cowboys off with a 28-10 halftime lead, all but ending the game.

* RELATED STORIES, PICTURES: Section S.