History of Pro stock in Timeline

By Popular Timelines Editorial Team · Updated: May 2, 2026

Pro Stock is a drag racing class emphasizing naturally aspirated engines, earning it the nickname 'all motor'. Regulations restrict modifications to engines and body types, fostering a balance of power and skill. These 'factory hot rods' compete without turbochargers, superchargers, or nitrous oxide, placing a premium on engine-building expertise and driver ability.

1970: Pro Stock Class Emerges

In 1970, the National Hot Rod Association (NHRA) pro stock class emerged from the production-based super stock class, introducing more liberal rules and eliminating handicaps.

1972: NHRA Introduces Rules for Small Displacement V8s

In 1972, the NHRA attempted to balance the playing field by introducing rules that favored small displacement V8 engines and compact cars with favorable weight considerations.

July 1973: NHRA Requires Competition Licenses

On July 1973, the NHRA mandated that pro stock drivers obtain competition licenses, similar to those required for blown or fuel dragsters and funny cars.

1973: First official Pro Stock E.T. Record Set

In 1973, at the NHRA Winternationals, "Dyno Don" Nicholson set the first official pro stock elapsed time record with a 9.33 second run, while Bill Jenkins set a speed record of 148.76 mph. Later at the same event in 1973, Nicholson broke both records with a 9.01 second/150.50 mph pass.

1974: Bob Glidden Wins Pro Stock Championship

In 1974, Bob Glidden began his dominant run, eventually becoming the first driver to win two pro stock championships.

1975: Bob Glidden Wins Second Pro Stock Championship

In 1975, Bob Glidden became the first driver to win two pro stock championships.

1978: Bob Glidden Dominates Pro Stock

During the 1978 season, Bob Glidden showcased exceptional dominance in pro stock, advancing to 18 of the 19 final rounds.

1979: Glidden's Impressive Winning Streak

In 1979, Bob Glidden continued his dominance, winning 14 times, including nine consecutive wins, solidifying one of the most impressive winning streaks in the sport's history.

1982: NHRA Implements New Weight and Engine Rules

In 1982, the NHRA eliminated the weight break system and implemented a standard 2,350-pound minimum weight and 500 cubic inch maximum engine size rule for all pro stock cars.

1983: Lee Shepherd Wins Championship

In 1983, Lee Shepherd secured the second of his four consecutive championships. He also won the IHRA title in 1983, making him the first driver to achieve this double victory.

1984: Lee Shepherd Wins Back-to-Back Championships

In 1984, Lee Shepherd repeated his 1983 feat by winning both the NHRA and IHRA titles, securing back-to-back championships in both series.

2004: Greg Anderson's Record-Breaking Season

In 2004, Greg Anderson achieved a record-breaking season, winning 15 of 23 events en route to his championship title.

2016: NHRA Overhauls Engine Formula

In 2016, the NHRA introduced a significant overhaul to the engine formula for pro stock, replacing hood scoops and double four-barrel carburetors with electronic fuel injection to align with modern automotive trends.