Julius Timothy "Tim" Flock (May 11, 1924 – March 31, 1998) was an American stock car racer. He was a two-time NASCAR series champion. He was a brother to NASCAR's second female driver Ethel Mobley and Bob and Fonty Flock.
Tim Flock finished 5th in NASCAR’s inaugural Strictly Stock race at Charlotte, North Carolina in 1949. NASCAR's first official season ended with Tim in eighth, Tim's brother Fonty Flock in fifth, and his other brother Bob Flock in third in the overall points standing. Tim sat out the 1950 NASCAR season recovering from a four car pile up at Charlotte.
He was the brother of NASCAR pioneers Tim Flock and Fonty Flock, and the second female NASCAR driver Ethel Mobley. The four raced at the July 10, 1949 race at the Daytona Beach Road Course, which was the first event to feature a brother and a sister, and the only NASCAR event to feature four siblings. Ethel beat Fonty and Bob by finishing in eleventh.
Returning to racing in 1951, Flock won seven races. 1952 brought eight wins and four poles. At the end of the 1952 NASCAR season, Tim Flock had 106 more points than Herb Thomas, earning Flock his first Grand National Championship title, despite flipping in the final race at West Palm Beach. Flock later joked, "I was the only driver to ever win a championship upside-down." In 1954, Flock was disqualified despite winning at the Daytona Beach Road Course for illegally screwed carburetor screws.
1955 was a record setting year for Flock as well as NASCAR. On the way to Flock's second Grand National Championship title, Flock had 19 poles and 18 victories in 45 races. The 18 victories stood as a record until broken by “The King”, Richard Petty, in 1967.
The 19 poles is still the highest number in a NASCAR season. The 1956 season, however, was filled with off-track frustration for Flock, particularly with team owner Carl Kiekhaefer.
Despite their combined on-track success, Flock left Kiekhaefer's team immediately after his victory in the April 8th race at North Wilkesboro, North Carolina, citing stomach ulcers. Upon departing from the Kiekhaefer camp, he had compiled 21 triumphs out of his 46 starts with Kiekhaefer.
At the time of its folding the team operated the #43 and #45 Dodge Chargers in the NASCAR Sprint Cup Series.
Petty Enterprises ran from 1949 until 2008. The team closed shop in January 2009 and merged with Gillett Evernham Motorsports after sponsorship could not be found for any of the cars in the Petty stable; the merged team took the name Richard Petty Motorsports, adopting a logo similar to that of Petty Enterprises' logo.