The 1969 Ford Mustang Boss 429, code-named Job 1, used a cast iron block with cylinders bored to 4.36 inches in diameter and a forged steel crankshaft with 3.59 inches of stroke.

The '69 Mustang 429 Isn't Your Next Bargain Deal If you’re hoping to snag a Boss 429 for the same money as a run-of-the-mill Mach 1, it’s time for a reality check. The Boss 429 isn’t even in ...

This is a real Boss 429, wearing the numbered build plate installed by Kar Kraft when it assembled these homologation specials for Ford. (Quick history lesson: To qualify its semi-hemi Boss 429 ...

The Boss 302 remained in production through 1970, selling 8,641 units. The second Boss model was designed to homologate a new 429-cubic-inch (7.0-liter) V8 engine for NASCAR.

Tasca Ford owned the street with this car. Bring on Hemis and SS 396 Camaros. As one of six pre-production 1969 Ford Mustang Boss 429s, Tasca challenged everybody for $1,000 bounty and never lost.

The previous 1970 Boss 429 record was set in January 2025 by a Calypso Coral unit that sold for $467,500. The record-setting fastback is one of four Boss 429s auctioned off at Indy 2025.

A rare 1970 Ford Mustang achieved $627,000 at auction this month. Only 499 Boss 429s were built for 1970, 13 with this car’s color combo. Ford created the Boss’s 7-liter hemi-head V8 to beat ...

Ford Boss 429 - Horsepower! Ohio George Montgomery’s 1,800HP, Twin-Turbo Boss 429 Mustang Geoff StunkardWriterApr 03, 2015 See All 5 Photos ...

The Boss 429 and 429 Super Cobra Jet V8 engines rank as some of the most powerful engines ever put in the Ford Mustang. In fact, if we limit our discussion to first-gen Mustangs, these engines ...

Ford later stuffed a massive 429 cu in V-8 in the Boss to compete against Chevy's SS 396 and its special-edition big-block Camaro, the COPO 427. The Boss ended production in 1970 before being ...