The Ravens expanded their 6-0 lead in the third quarter when quarterback Steve McNair hit Clayton for an 87-yard touchdown, the longest pass of McNair's 12-year career.

McNair originally thought Clayton was covered and looked inside for his second read. When Clayton got Chiefs safety Greg Wesley to bite on a double move, McNair only had to toss the ball to a wide-open Clayton, who caught it at the Chiefs' 45 and ran the rest of the way untouched.

"When you have a guy like that wide-open, you pray from the time it leaves your hand until it gets to him," said McNair, who was 21-for-27 passing for 283 yards.

After their margin had been trimmed to 13-3, the Ravens sealed their fifth road win of the season with a 16-play, 86-yard drive in the fourth quarter, which was capped by a Jamal Lewis 1-yard touchdown.

The marathon possession featured 12 runs and a 33-yard pass from McNair to Demetrius Williams, taking up all but 5 minutes, 47 seconds of the final quarter.

"That was impressive to show the resolve and the ability to run when we had to run and make the plays in the passing game when you have to in critical situations," Billick said.

By passing this test, the Ravens gain momentum for their homestretch, one that includes no team with a winning record. They can clinch the AFC North in Week 15 if they beat Cleveland and the Cincinnati Bengals lose at Indianapolis.

But the Ravens did secure one thing yesterday -- a confidence on the road that has been nonexistent for years. In a matter of a season, they have transformed themselves from a team that couldn't win on the road (they lost 11 in a row heading into this season) to one that can win anywhere.

"This says we're unflappable. The surroundings don't bother us, and you can put us anywhere," Scott said. "I think it was a huge statement in the way we beat them."

jamison.hensley@baltsun.com