The only driver attempting to run each of the three races scheduled this week at Kentucky Speedway got off to a fast start Wednesday.

Kyle Busch led final Camping World Truck Series practice with a lap of 180.886 mph in the No. 46 Kyle Busch Motorsports Toyota and was second behind Grant Enfinger in opening practice.

Qualifying for the Buckle Up In Your Truck 225 is scheduled for 5 p.m. Thursday with the green flag scheduled for 7:30 p.m.

Busch said the racing surface, which received an additional surface course layer of asphalt over the offseason, felt similar to last year.

"The guys who groomed the track did a good job," he said. "It was ready to go right off the bat for us for truck practice. The track's got a lot of grip.

"We'll see how wide it gets. It's not very wide right now. We've still got to widen it out."

A seven-time winner at Kentucky Speedway, including twice in the Monster Energy NASCAR Cup Series' Quaker State 400 presented by Advance Auto Parts, Busch is looking to duplicate his three-race weekend sweep in August 2010 at Bristol Motor Speedway.

This marks Busch's fifth attempt at the triple at Kentucky Speedway.

He fell one victory shy of the sweep in 2011. Last year, he finished 30th in the Truck Series race after hitting the wall just 56 laps into the 150-lap race, won the XFINITY Series' Alsco 300 from the pole and finished 12th in the Cup Series race.

Busch will be driving a No. 18 Joe Gibbs Racing Toyota in the XFINITY and Cup series races. He's still looking for his first Cup victory this season.

Enfinger started his day at the track hosting Cub Scout Pack 832 from Warsaw, Kentucky. The visit helped the Scouts get closer to earning their events badge.

The group was invited to return Thursday to watch the Truck Series race.

Children ages 12 and younger are admitted at no charge for the Truck Series and XFINITY Series races. On Saturday, tickets for children 12 and younger for the Quaker State 400 will be $10.

Enfinger logged 43 laps and posted a fast lap of 182.020 mph. He was 11th in final practice, which also saw rookie Chase Briscoe hit the wall in the No. 29 Brad Keselowski Racing Ford after blowing a tire.

Briscoe will have to go to a backup truck.

Goodyear brings new tire to Kentucky

Goodyear brought a new right-side tire to Kentucky Speedway for the tripleheader race weekend that features a compound change designed to offer more grip and create more wear in response to the work performed on the track last year.

Goodyear held a tire test on the new surface in May with drivers Kurt Busch, Austin Dillon, Erik Jones and Jamie McMurray participating. Goodyear said the goal of the test, "was both to tune the grip to the fresh surface as the Cup and XFINITY Series go to lower downforce packages and induce more wear on a new surface that won't easily wear tires and take on rubber."

Teams in the NASCAR Cup, XFINITY and Camping World Truck series will be using the same tire combination. The left-side tire is unchanged from last year.

Blaney excited about returning to Kentucky

Ryan Blaney earned his first career Cup Series victory earlier this season and this week returns to a track where he has twice visited victory lane in the XFINITY Series.

Blaney will be pulling double duty, driving the No. 21 Wood Brothers Racing Ford in the Quaker State 400 and the No. 12 Team Penske Ford in the Alsco 300. He won his last XFINITY Series race in the No. 12 car in May at Charlotte Motor Speedway.

Blaney has made 12 career starts on the 1.5-mile Kentucky track. Last year's Quaker State 400 was his first Cup Series race at Kentucky. He's also made seven XFINITY Series starts and four Camping World Truck Series starts.

Blaney won the 300 in 2013 and 2015.

"It's nice to get back to a racetrack where we've been fairly successful at in the XFINITY car, and I think our Cup cars have actually been really good there, too," he said. "We haven't really got the great finishes that I feel like we should have gotten there. But I'm excited to get back. I've always enjoyed the racetrack and the atmosphere around it, and the repave of that place, what they did last year, I think hopefully will start to widen out and we'll be able to have multiple grooves there like it used to be."