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The Boss 429 Mustang is a high-performance Ford Mustang variant that was offered by Ford in 1969 and 1970. Overview. The distinctive enormous valve covers on a semi ...
Their products were included as standard equipment in specialty models such as AMC's The Machine (also known as the Rebel Machine), and in optional performance versions of AMC AMXs and Javelins, Chevrolet Camaros, Pontiac Firebirds, Pontiac GTOs and Oldsmobile 442s, Boss Mustang 302 and the Boss 429, as well as Dodge Chargers, Plymouth ...
It was based on the Mustang SportsRoof model and replaced both the Boss 302 and the Boss 429 models. The Boss 351 engine was a 351 Cleveland four barrel engine with a mechanical cam, solid lifters, 11.0:1 compression ratio, aluminum intake, and a 4 bolt main bearing block. It was topped with an all-new 750 CFM Ford 4 barrel carburetor.
At mid-year, Ford offered a slightly detuned Boss 351 engine, which could be ordered with any model. A total of 398 Mustangs were built with the drag race-oriented R code engine and were designated as the 351 HO. Mandatory options were the top loader 4-speed, competition N case rear end (427, 428, 429, Boss 351, 351HO), and air conditioning delete.
Additionally, a variety of performance packages were introduced that included the Mach 1, the Boss 302, and Boss 429. The two Boss models were to homologate the engines for racing. The 1969 Mustang was the last year for the GT option (although it did return on the third-generation Mustang for the 1982 model year).
The Ford Mustang Mach 1 is a combination performance and appearance package offered as an option for the Ford Mustang in August 1968 for the 1969 model year.. Over the following years, the package was available with various engines that became more modest as emissions controls, unleaded gas, fleet mileage quotas, and higher gasoline prices undercut the "horsepower wars" that were the origin of ...
Later in the season, the Boss 429 engine was used by many of the teams, after it had finally been declared "officially homologated" by NASCAR president Bill France. The Boss 429 engine was homologated in the 1969 Ford Mustang Boss 429. In a very unusual move, Ford homologated the engine separately from the car in which it was to race.
For 1995, a one-year model referred to as the Mustang GTS was introduced. This was considered to be a "stripped down" version of the Mustang GT that included the performance parts of the GT model, but a minimum of non-performance related features, similar in concept to the 5.0 LX Fox-body. 1995 also marked the last year of the 5.0 pushrod V8 ...