Joining in the Chrysler boycott of NASCAR due to the organizing body's ban of the Hemi engine, Petty spent much of 1965 competing as a drag racer. Petty Enterprises installed the Hemi in the new compact Barracuda and lettered "OUTLAWED" on the door. He crashed this car at Southeastern Dragway, in Dallas, Georgia, on February 28, 1965, killing an eight-year-old boy and injuring seven others.Times-Picayune, March 1, 1965, p. 1Trenton Evening Times, March 1, 1965, p. 1. Petty, his father Lee, and Chrysler Corporation faced lawsuits totaling more than $1 million, though Petty and his team came to settlements with the lawsuits within 1 month of the suits being filed.Plain Dealer, May 19, 1965, pp. 35, 40. Afterwards, a second Hemi Barracuda was built, this time with an altered wheelbase and eventually with Hilborn fuel injection. This car was lettered with a large "43 JR" on the door. The car was very successful, winning its class at the Bristol Spring Nationals and competing in many match races against well-known racers such as Ronnie Sox, Don Nicholson, Phil Bonner, Huston Platt, Hubert Platt and Dave Strickler. Even after returning to NASCAR once the Hemi was reinstated, Richard continued drag racing the 43 JR until early 1966. ± On February 27, 1966, Richard Petty overcame a 2-lap deficit to win his second Daytona 500 when the race was stopped on lap 198 of 200 because of a thunderstorm. This made him the first driver to win the event twice. In 1966, he won the first ever race at Middle Georgia Raceway (Morelock 200). Petty broke the half-mile NASCAR record for half-mile tracks with an average speed of 82.023 miles per hour during the 100-mile (160 km) event. He would end up recording 4 wins there in his career, including one in 1970 in which he was very ill before the race. 1967 was a milestone year. In that year, Petty won 27 of the 48 races he entered, including a record 10 wins in a row (between August 12 and October 1, 1967). He won his second Grand National Championship. One of the 27 victories was the Southern 500 at Darlington, which would be his only Southern 500 victory. His dominance in this season earned him the nickname "King Richard". He had previously been known as "the Randleman Rocket".
Joining in the Chrysler boycott of NASCAR due to the organizing body's ban of the Hemi engine, Petty spent much of 1965 competing as a drag racer. Petty Enterprises installed the Hemi in the new compact Barracuda and lettered "OUTLAWED" on the door. He crashed this car at Southeastern Dragway, in Dallas, Georgia, on February 28, 1965, killing an eight-year-old boy and injuring seven others.Times-Picayune, March 1, 1965, p. 1Trenton Evening Times, March 1, 1965, p. 1. Petty, his father Lee, and Chrysler Corporation faced lawsuits totaling more than $1 million, though Petty and his team came to settlements with the lawsuits within 1 month of the suits being filed.Plain Dealer, May 19, 1965, pp. 35, 40. ,Afterwards, a second Hemi Barracuda was built, this time with an altered wheelbase and eventually with Hilborn fuel injection. This car was lettered with a large "43 JR" on the door. The car was very successful, winning its class at the Bristol Spring Nationals and competing in many match races against well-known racers such as Ronnie Sox, Don Nicholson, Phil Bonner, Huston Platt, Hubert Platt and Dave Strickler. Even after returning to NASCAR once the Hemi was reinstated, Richard continued drag racing the 43 JR until early 1966. ± On February 27, 1966, Richard Petty overcame a 2-lap deficit to win his second Daytona 500 when the race was stopped on lap 198 of 200 because of a thunderstorm. This made him the first driver to win the event twice. In 1966, he won the first ever race at Middle Georgia Raceway (Morelock 200). Petty broke the half-mile NASCAR record for half-mile tracks with an average speed of 82.023 miles per hour during the 100-mile (160 km) event. He would end up recording 4 wins there in his career, including one in 1970 in which he was very ill before the race. 1967 was a milestone year. In that year Petty won 27 of the 48 races he entered, including a record 10 wins in a row (between August 12 and October 1, 1967). He won his second Grand National Championship. One of the 27 victories was the Southern 500 at Darlington, which would be his only Southern 500 victory. His dominance in this season earned him the nickname "King Richard". He had previously been known as "the Randleman Rocket".