The Boss 429 Mustang is a high-performance Ford Mustang variant that was offered by Ford in 1969 and 1970.
A total of 859 Boss 429s were made by Ford in 1969, including two Cougars for the Lincoln/Mercury Race Division. All had black interiors, and came in one of five colors: Raven Black, Wimbledon White, Royal Maroon, Candy apple Red, and Black Jade. The fully functional hood scoop was the same color as the car, and noticeably larger than anything else offered on any Ford product but the two Boss 429 Cougars. This scoop would carry over to the 1970 model year but would be painted black on all cars. To this day, it is the largest factory hood scoop ever installed on a production Mustang.
All cars came with 4-speed manual transmissions and a rear-wheel drivetrain. The huge engine shoehorned into even a modified Mustang front end left no room for air conditioning. Some early cars were known as "S" code cars and as such had a slightly different engine, with magnesium valve covers, NASCAR style forged internals, and close to no smog or emissions equipment. They are said to be more powerful than the later "T" and "A" code engines (which had the emissions related equipment to satisfy government regulations). The engines in some cases were removed from the cars for use in other applications such as tractor pulling, due to the extreme torque and horsepower the engine was capable of producing.
