Grabber Blue 1970 Ford Mustang Boss 429 for sale for $700,000

It’s simple to see why this Mustang is appealing. Given their rarity and enormous engine, this is unquestionably a royal vintage muscle car.

The five-year auction record, however, was recently set at Scottsdale 2022 and stands at $473,000.

This 1970 Mustang Boss 429 is being offered for sale by Motorcar Classics in Farmingdale, New York, for $699,900.

It is unquestionably beautiful in this color, but the cost is approximately twice what the market norm is.

It was created during the height of Ford’s Total Performance period with a single goal in mind: to NASCAR Grand National racing homologate Ford’s revolutionary hemi-head Boss 429 engine.

The Mustang had a thorough makeover, and the volume-focused Ford actually hired Kar Kraft of Brighton, Michigan, to perform the work.

The front shock towers had to be moved from their original locations, and the front riding height had to be lowered for the intricate modification.

A Toploader 4-speed transmission, an engine oil cooler, a battery mounted in the trunk, a 9-inch Traction-Lok rear end, powered disc brakes up front, a competition suspension with front and rear anti-roll bars, and staggered rear shocks are just a few of the performance parts Ford also had them install.

They produced 857 copies overall for the first year (+2 Cougars), but only 499 for 1970. Both years’ power ratings were 375 horsepower and 450 pound-feet of torque.

Of course, as with many other famous engines from that era, there are rumors that the figures were reduced for insurance reasons.

The racing 7.0-liter engine was based on the Ford 385 but had steel connecting rods and a forged steel crankshaft.

They changed the exhaust system and used mechanical lifters in 1970 rather than hydraulic ones in 1969.

The 429ci V8 could handle the high rpm of a track race, but it could only run up to about 6,200 rpm on the open road.

The vendor of this Grabber Blue specimen claims that the vehicle has an original engine matching its serial number, KK (Kar Kraft) number 2073, making it one of the earliest Boss 429s to have an emissions fuel system, which is a somewhat uncommon feature.

They continue, “Coming to market after 41 years of ownership, this 429 is likely one of the most original 429’s available today and has been inspected and verified by world-renowned Boss 429 guru Ed Meyer.”

I believe that guru authentication is a contributing factor in this price. Since the 2000s boom, boss 429 prices have not been this high.

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