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The distinctive enormous valve covers on a semi-hemispherical head Boss 429 engine. The Boss 429 was produced in limited numbers in 1969 and 1970. Its origin is twofold: allow Ford to homologate its new Ford 385 engine-based semi-hemispherical 429 V8 for NASCAR racing, and to provide a big block alternative to the 5.0 L and under Trans Am ...
A 429 cu in (7.0 L) version was also introduced the same year, with a 370 cu in (6.1 L) variant appearing in 1977. Produced until 1998, the 385 engines replaced the MEL engine entirely, along with multiple engines of the medium-block FE engine family; in truck applications, the engines succeeded the much larger Super Duty family.
Mandatory options were the top loader 4-speed, competition N case rear end (427, 428, 429, Boss 351, 351HO), and air conditioning delete. Vacuum-operated Ram Air was not available. However, the HO came with the first full-time cold air induction system in a Mustang, routing cold air via a two-piece plastic duct under the battery tray to the air ...
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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.
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 ...
In the 1950s, Ford introduced a three-tier approach to engines, with small, mid-sized, and larger engines aimed at different markets. All of Ford's mainstream V8 engines were replaced by the overhead cam Modular family in the 1990s and the company introduced a new large architecture, the Boss family, for 2010.
Boss is the internal name for a family of large-displacement V8 engines from Ford Motor Company intended to compete with Chrysler's Hemi and General Motors' 6.0 L Vortec engines. Originally named Hurricane , development of the engine was cancelled in 2005, then revived in early 2006 by Mark Fields [ 1 ] In light of the devastation caused by ...