Ricky Thornton, Jr. and Bobby Pierce lead the field to green in the $52,000-to-win Silver Dollar Nationals for the Lucas Oil Late Model Dirt Series at Shelby County Speedway. #MustWatch Watch more from #LucasDirt Silver Dollar Nationals, only #live on Flo: flosports.link/4pJS1b3 Website: floracing.com Subscribe: bit.ly/2p4VBzF Get the FloSports iOS app: bit.ly/FloRacingiOSApp_9 Follow FloRacing Facebook: facebook.com/FloRacing.tv Twitter: twitter.com/FloRacing Instagram: instagram.com/floracing