Don’t say sorry; the Boss 429 Mustang only has a V-8 engine. 1969 was the only year that 850 fastbacks were made. This model is in great shape and has a beautiful color combination. By the end of the 1960s, dinosaurs were still walking around like they owned the land. In the 1970s, a rocket hurtling toward Earth was the first fuel problem. V-8 engines power cars that have huge displacements, high compression, and a huge need for oil. If you were a fan of muscle, 1969 was an amazing time to be alive. For people who liked Ford, there was one Tyrannosaur they really wanted to see. It’s a 1969 Ford Mustang Boss 429, a big-block, insanely powerful pony car that’s for sale on Bring a Trailer, a partner of Hearst Autos that also sells cars at invoice prices. With an almost 7.0-liter V-8 engine and a 3.91:1 rear gear, it is a tire-destroying beast with a lot of power. It makes sense that this T. rex is green. To begin, let us talk about the motor that looks like a dinosaur. It’s the big attraction here. The factory-built motor has a capacity of 429 cubic inches and 375 horsepower front’s right. At the time, horsepower numbers were often rounded down so that insurance costs wouldn’t go through the roof. The car has a limited-slip rear differential and a four-speed manual gearbox. The Boss 429 was only made for the model years 1969 and 1970. It was made to meet NASCAR’s rules for race homologation for the 429-cubic-inch V-8 engine. Kar-Kraft, a Ford independent contractor who had worked on the GT40 before, was given the job of putting this huge engine in front of Boss Mustangs. Most likely, they used the biggest tool in the world to do this. The Boss had big cubes, strong hubs and rotors, a stronger suspension, and front disc brakes that were powered by electricity. This stunning Black Jade green-over-black piece originally cost just under $5,000, which would be a little over $40,000 in today’s money. It sounds like a great deal now, but in 1969, it cost about twice as much as a regular Mustang. This car is extremely rare, as only 850 Sportsroof Boss 429s were produced for the 1969 model year, and just 162 were painted in this exact shade of green. After a full rotisserie repair more than twenty years ago, it looks like it’s in great shape. Because it has so much power and energy, it’s more of a collector car for special occasions than for daily driving. However, it’s still easier to control than a real Tyrannosaurus. We’ve all seen Jurassic Park. In the past ten years, cars like the Ford Mustang Dark Horse and the Dodge Challenger Hellcat have brought back the muscle look. Ford doesn’t make them this way anymore, though. This thing called the Boss wasn’t just there for fun. The sale will end on May 2.