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This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability

This Mustang went under the digital hammer once and failed to sell, will it change owners this time around?

Outside of, say, the Shelby GT500, the Mustang Boss 429 – offered between 1969 and 1970 – is, arguably, the most desirable Mustangs on the planet. The 385-based 429 engine plays a big role in that status, but that’s only a part of what makes this specific car special. Wearing chassis stamp 0F02z109085 and Kar Kraft serial number KK2131, this Boss 429 is in pristine condition and still has the original engine under the hood.

The Finest Boss 429 Mustang You’ll Ever See

This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability
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The Mustang Boss 429 is quite collectible, thanks to the impressive engine under the hood and the limited production run that only lasted from 1969 to 1970

The gorgeous car that you see here was built on September 16, 1969, in Dearborn Michigan, and delivered to Hunter Motor Company in Littleton shortly thereafter. It was sold just four months later in January 1970 for just $5,107.95 including the destination charge. Cheap, right? Well, even in today’s money it’s really not that bad. Adjusted for inflation, that kind of money in 1970 converts to around $32,270 in today’s money.

This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability
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This particular model was built in 1970 which, according to the Bring-A-Trailer listing, makes it just one of 500 that were built during that model year.

The car stayed with the original purchaser until 1989 and changed hands at least twice since then, with the current owner taking delivery in 2014. It was listed for sale on Bring-A-Trailer in May of 2019, and bidding climbed all the way to $190,000, but that was short of the reserve and it never sold. Today, you can find it on BAT again, and there’s still a week of bidding left with the current bid sitting at $175,000. So far, the current listing’s reserve has yet to be made public, but we’re willing to bet it’s close to $250,000.

This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability
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What’s more impressive is that the 429 V-8 under the hood matches the car’s vin, so it’s legitimately the original factory-installed engine.

As for the car’s history, it’s apparently been repainted at least once, but was brought back to the original exterior color – which you see here – by its owner in 2012. It rides on 15-inch Magnum 500 wheels and came with power steering, power front disc brakes, the Drag Pack, and competition suspension. The interior came with high-back front bucket seats wrapped in Corinthian vinyl with knitted inserts. There’s also a decent helping of fake wood trim prices, a Hurst shifter, a period-correct radio, heating, and a rim-blow steering wheel that sits ahead of period-correct instrumentation.

This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability
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Overall, it’s in great shape inside and out, including period-correct instrumentation, ratio, and fake wood trim

The mileage on the odometer hasn’t been verified, but it currently reads 48,222 miles. But based on the images it’s clean enough that its believable power from the 429 engine is shunted through a four-speed manual transmission, which sends power to the 9.0-inch rear end with a 3.91:1 limited-slip differential. The engine’s stamp matches the car’s VIN, so it’s legitimately the original engine. The winner of the auction will receive a copy of the original window sticker and the Deluxe Marti report, the latter of which claims on;y 500 units of the Boss 429 were built in 1970. If that’s actually true, this blue beauty is also quite rare.

This 1970 Ford Mustang Boss 429 is the Pinnacle of Collectability
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The paint, however, isn’t original. It was owned by the original owner until 1989, but the listing says the owner in 2012 had it repainted back to the original blue color you see here.

Source: Bring A Trailer

Robert Moore
Robert Moore
Editor-in-Chief and Automotive Expert - robert@topspeed.com
Robert has been an auto enthusiast his entire life. He started working cars at a young age, learning the basics from his father in the home garage on the weekends. As time went on, Robert became more and more interested in cars and convinced his father to teach him how to drive when he was just 13 years old. Robert continued working on cars in his free time and learned as much as he could about engines, transmissions, and car electrical systems, something that only fed his curiosity more and eventually led him to earn a bachelors degree in automotive technology with a primary focus on engine performance and transmission rebuilding.  Read full bio
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