A conversation between two muscle car enthusiasts can sound positively military, with all the acronyms, slang, codes, and ...

One of only five examples known to exist in this color combo, this 1970 Ford Mustang Boss 429 sold for over $600,000, setting ...

For months, maybe even years, fans, drivers, team owners, and industry members have been calling on NASCAR executives to add horsepower to the NASCAR Cup Series short track package, to improve the ...

Doug Yates, CEO of Roush-Yates Engines, says that an increase from 670 to 750 horsepower "wouldn't be much of a change" and that he would like to see NASCAR be open-minded about tweaking the ...

The Boss 429 Mustang is all V-8 and no apologies. Only 850 fastbacks were made for the 1969 model year. This example looks to ...

The original Boss 429 was developed by Ford to homologate its new 429 cubic-inch (7.0-liter) V-8 engine for NASCAR. Fewer than 900 Boss 429 models were built, easily exceeding NASCAR’s 500-unit ...

the simplest place to start is that Ford made just 859 Boss 429 Mustangs for 1969 to homologate the engine for use in NASCAR (which it dominated). A Boss 429 in decent shape typically runs around ...

While NASCAR V8 engines may have improved through the years, the power units don't last very long. As such, teams rebuild the engines after every race to ensure optimal performance for the next ...

However, the 426 Hemi's track dominance forced a big block engine showdown with Ford's own hemi design, the Boss 429. Luckily for muscle car fans, NASCAR rules at the time required automakers to ...

The well-documented characteristics of the mighty 429-cubic-inch powerplant lurking under the hood of the Mustang Boss 429 do not need another deep dive. A quick synopsis should suffice before ...