1969 Ford Mustang Boss 429 sale Asking $410,000 for Rare 600 HP Muscle Car

1969 Ford Mustang Boss 429 sale Includes Spare “Sister” NASCAR Homologation Engine

A listing on Auction123 features a 1969 Ford Mustang Boss 429, one of the rarest high-performance variants of the first-generation Mustang. The 1969 Ford Mustang Boss 429 sale is particularly intriguing because it comes with an extra “sister” Boss 429 engine—a valuable spare that can be rebuilt or sold separately, adding immense value to the package.

The asking price is a staggering $410,000, a figure expected for a five-decade-old muscle car limited to a little over 1,350 units and backed by proven racing pedigree.

Here is a look at the history of this legendary muscle car and what makes this package so rare.

The Legendary Big Block

The Mustang Boss 429 was engineered as a homologation motor to help Ford remain competitive in NASCAR and challenge Chrysler’s 426 Hemi. The original factory rating was conservatively listed at 375 horsepower, a move widely believed to keep insurance costs manageable.

Provenance and the Bonus Engine

The Royal Maroon exterior of this particular example is correct for the 1969 model year. It is heavily documented to validate its authenticity and provenance.

• Provenance: The sale is backed by key documentation, including a build sheet, Mustang Club of America judging certificates, and a Marti Report.
• The Sister Engine: The inclusion of a spare, authentic Boss 429 engine is a significant value proposition. The engine is disassembled, allowing buyers to examine its NASCAR-homologated internal components closely and verify its authenticity, or providing a fully rebuildable spare for the future.

The asking price of $410,000 places this model in the higher tier of auction valuations for the Boss 429, reflecting the combination of its historical significance, rare color, documentation, and the invaluable addition of a spare engine.

Also Read – Jeep Renegade North Star Edition Features Mild-Hybrid Power and Exclusive Technogreen Paint