Not all teams announce their weekly race chassis'. Here is a list of those teams that do reveal the chassis in the teams race preview:
#2- Brad Keselowski - Primary Chassis for Pocono is PRS-856, which is a new chassis. Backup chassis is PRS-847, which was a backup at several races but has not raced.
#5- Kasey Kahne - Hendrickcars.com returns as a primary partner for Kahne and the No. 5 Chevrolet SS this weekend at Pocono Raceway. For this weekend at Pocono, crew chief Kenny Francis will unload Hendrick Motorsports Chassis No. 5-779, a car Kahne has driven twice before. In March, Kahne led 114 laps in this chassis and finished second at Las Vegas Motor Speedway. Most recently, he raced this car at Texas Motor Speedway in April and finished 11th.
#9- Marcos Ambrose - The No. 9 Dewalt Ford team prepared chassis No. 842 for Pocono. The last time the team competed with this chassis was at Darlington Raceway this season.
#10-Danica Patrick - Chassis No. 10-723 was tested in the wind tunnel before seeing its first on-track activity in April at Texas Motor Speedway in Fort Worth, where Patrick started 42nd and finished 28th. The car was then tested by Patrick May 7-8 at Nashville Superspeedway and May 29-30 at Pocono Raceway.
#14-Tony Stewart - Chassis No. 14-706: This car debuted in spectacular fashion in March 2012 at Auto Club Speedway in Fontana, Calif., as Stewart took Chassis No. 14-706 from its ninth place starting spot to lead twice for 42 laps en route to the win in the rain-shortened race. Prior to Fontana, the car spent numerous hours in the wind tunnel. It is a clone to Chassis No. 14-640, which won round three of the 2012 season at Las Vegas Motor Speedway. Chassis No. 14-706’s second start, in April at Kansas Speedway in Kansas City, was a bit quieter than its debut race. It started 23rd and gained 10 spots to finish 13th. Its third start came in the Sprint Cup Series’ longest race, the Coca-Cola 600 at Charlotte Motor Speedway. There, Stewart qualified 21st and finished 25th as Chassis No. 14-706 proved to be a handful throughout the 400-lap contest. The car redeemed itself in its fourth start in June 2012 at Michigan International Speedway in Brooklyn, where Stewart qualified eighth, led 18 laps and finished second. Chassis No. 14-706 sat idle until returning to Michigan in August 2012 for its fifth career start, but a broken valve spring within the engine relegated it to a 32nd-place finish. With 2013 Chevrolet SS bodywork covering it, Chassis No. 14-706 returned to work April 30-May 1 during a Goodyear tire test at Indianapolis Motor Speedway. It tested again May 29-30 at Pocono Raceway in preparation for its sixth career start Sunday in the Party in the Poconos 400.
#16- Greg Biffle - This week's No. 16 3M ford Fusion primary chassis RK-844 last hit the track in Richmond where a broken shock led to a 36th-place finish for Biffle. Backup Chassis: RK-822 Last ran Martinsville – finished 9th.
#17- Ricky Stenhouse Jr - No. 17 Valvoline Ford Primary Chassis RK-832 is the same chassis that the No.17 team ran at Richmond finishing 16th. The backup Chassis RK-801was a chassis that the No. 99 ran numerous times in 2012.
#22- Joey Logano - Primary Chassis for Pocono is PRS-848 which last raced at Texas and finsihed 5th. Backup chassis is PRS-844, which was a backup at several races but has not raced.
#24- Jeff Gordon - Gordon will race HMS chassis No. 24-785 this week in Pocono. The car finished 11th at Fontana earlier this year in it's only start.
#29- Kevin Harvick - This Week's Rheem Chevrolet SS at Pocono Raceway ... Kevin Harvick will pilot chassis No. 391 from the Richard Childress Racing NASCAR Sprint Cup Series stable for the Party in the Poconos 400. The California native last piloted this Chevrolet at Bristol Motor Speedway in March, where he settled for a 14th-place finish. The red Rheem logo will adorn the hood of the No. 29 RCR machine this weekend at Pocono Raceway for their fourth of seven appearances during the 2013 Sprint Cup Series season.
#31- Jeff Burton - This Weekend's No. 31 Caterpillar Chevrolet at Pocono Raceway ... Jeff Burton will race chassis No. 416 this weekend at Pocono Raceway. This No. 31 Chevrolet has been utilized three times this season at Auto Club Speedway, Texas Motor Speedway and Darlington Raceway.
#39- Ryan Newman - Chassis No. 39-733 debuted at Indianapolis Motor Speedway in July 2012, when Newman recorded a seventh-place finish. The crew turned the car around in just a couple of days and took it to Pocono Raceway, where it finished sixth. Two weeks later, the chassis was back on track at Michigan International Speedway, where it finished eighth. The chassis earned its first top-five finish at Chicagoland Speedway in Joliet, Ill. The chassis next raced three weeks later at Dover International Speedway. The chassis made its last start of the 2012 season at Kansas Speedway in Kansas City in October, when Newman was involved in an incident that forced him to retire from the event prematurely. Chassis No. 39-733 was outfitted with a new front clip and a Chevrolet SS body, and saw its first laps of the 2013 season at Kansas in April, where Newman finished 14th. Most recently, Newman raced this Chevrolet SS to a 10th-place finish at Darlington last month.
#43- Aric Almirola - The No. 43 Smithfield Ford team has prepared chassis No. 837 at Pocono. The team last raced the chassis at Richmond International Raceway, where Almirola finished eighth in this third of four consecutive top-10 finishes earlier this season.
#48- Jimmie Johnson - Johnson will drive chassis No. 728 at Pocono. The car ran at Texas in April and Las Vegas in March, finished 6th both races. The chassis also ran 6 times in 2012, winning at Indianapolis and and Dover in June. Chassis No. 720 once again serves as the backup. No. 720 raced 6 times in 2012, winning the All Star Race and Texas in November.
#88- Dale Earnhardt Jr - This weekend, crew chief Steve Letarte and the No. 88 team will unload Hendrick Motorsports Chassis No. 88-798. This is a new chassis that has not been raced.
#99- Carl Edwards - The #99 Cheez-It/Frosted Flakes Ford Fusion team will unload chassis RK – 808 at Pocono Raceway, which last ran at Kansas Speedway in April, finished 17th. Backup Chassis: RK – 826 last ran in Texas
- Reported in Team News/Press Releases