The Boss 429 is one of the rarest and most wanted Mustangs ever built, with only 1358 examples produced from 1969 to 1970. A little ahead of its time, the car wasn’t the big hit everyone expected, but Ford created the muscle car solely for the purpose of NASCAR racing.

The 1969 and 1970 Ford Mustang models were equipped with a monster Hemi engine. Creator Kar Kraft modified the architecture of 428 Cobra Jet and Super Cobra Jet to make room for the motor and make it a threat in the competition against the infallible 426 Chrysler Hemi. The battery was relocated in the trunk, shock towers extended and the mounts for the front suspension were cut to fit the block and exhaust manifolds. Kraft placed his signature on each model, on the inside of the driver’s door above the warranty plate. The first model was named “KK NASCAR 1201”. This is definitely one of the best world cars even to today’s standards; perhaps it doesn’t benefit from the same technological advances that have appeared since then, but for what it was and what it is, the Boss 429 is still impressive as heck. Of course, deciding this is one of the world best cars is a subjective sentence, but Fords in general are amazing, powerful and performing cars.

NASCAR regulation stated that 500 cars equipped with this engine had to be sold to be eligible for the race. Because of the technical limitations of that time, the motor couldn’t operate at full capacity. The small carburetor, mild solid lifter cam, restrictive exhaust and intake manifold kept the monster in a cage. The pony car could still rate 375 horsepower at 5200 RPM and with the proper parts add another 100 horsepower or even more. Because of the large engine there was no room left for automatic transmission or air conditioning.

The 1969 model came in five colors: Royal Maroon ,Wimbledon White, Raven Black, Candyapple Red, Black Jade with an all black interior. Only 859 models were made that year. The 429 engine had few weaknesses, o-ring heads and the lack of head gaskets. The first 279 models were known as “S” code cars, because of the heavy duty rods for NASCAR. Due to malfunctions, Ford replaced the S-code engine with a T-version that used lighter parts and later in 1970 with an upgraded A-version.

Even fewer 1970 Ford Mustang Boss 429s were built, 499 specimens similar to the early model. Five new daring color options were added: Grabber Green, Calypso Coral, Grabber Orange, Grabber Blue and two Pastel Blue cars, with new white and black interior available. They all came with a hood scoop painted gloss black and a Hurst Shifter. Few even had a rare six-pack intake option installed.

Produced for only two years, the wild and daring 1969-1970 Ford Mustang Boss 429 remains a legend. Recent sales show that the Mustang is still highly appreciated and desired, numbers going over $200,000 and even reaching $600,000 in 2007.

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