1969 ford mustang boss 429

Ford enlisted the help of Kar Kraft to wedge the massive ci into the mighty Boss Mustang, 1969 ford mustang boss 429. The Boss engine featured aluminum cylinder heads, which had a modified Hemi type combustion chamber which Ford called "crescent". The Boss engine used a single Holley four-barrel carburetor rated at CFM mounted on an aluminum intake manifold.

It was built as a limited production Mustang Fastback to meet the required homologation of units. Power was legally rated to horsepower kW although horsepower kW was possible. To meet emissions regulations, a mild cam was fitted along with a smog pump and small carburetor. With a few modifications up to bhp was common. Since the new engine was too large to fit in standard Mustang body, KarKraft was hired to modify the front-end of the car into a standard Sportsroof SCJ body. They took a Mach 1 and changed the inner fenders, widening the shock towers, to made additional space.

1969 ford mustang boss 429

The Boss Mustang is a high-performance Ford Mustang variant that was offered by Ford in and The Boss is recognized as being among some of the rarest and highly valued muscle cars to date. NASCAR's homologation rules required that at least cars be fitted with this motor and sold to the general public. After much consideration, it was decided by Ford that the Mustang would be the car that would house this new engine. The Boss engine evolved from the Ford engine. It used four-bolt main caps, a forged steel crank and forged steel connecting rods. The engine featured aluminum cylinder heads, with a semi-hemispherical type combustion chamber which Ford called the "crescent". These heads used the "dry-deck" method, meaning the coolant circuit for the block was separate from the cooling circuit for the head The "dry-deck" method of design is intended to strengthen the block by removing the open coolant jackets around the cylinder and reduce hot spots by providing more direct cooling. Each cylinder, oil passage and water passage had an individual "O" ring style seal to seal it tight. Although a head gasket is used, it only seals the cylinder for combustion so a failure at one point won't compromise the others. The Boss engine came standard with a single Holley 4-barrel carburetor rated at CFM mounted on an aluminium intake manifold that flowed well for its time. The Mustang's engine compartment was not wide enough to accommodate the massive Boss engine, so Ford contracted with Kar Kraft of Dearborn, Michigan, to modify 4-speed Cobra Jet Mustangs to accept it.

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The Ford Mustang needs no introduction. It's one of the most iconic American muscle cars to have ever been produced, with an illustrious back-catalog of highly influential models from across the span of six decades. Perhaps one of the most revered and collectible examples of this iconic Ford is the Mustang Boss With roots in NASCAR, one of the most powerful naturally-aspirated V8 engines in Ford history, and a super-limited supply of examples to choose from, it's easy to see why collectors and brand enthusiasts consider it to be among the most iconic Mustangs. For a plethora of reasons which we will explore here, it's also one of the most valuable muscle cars in the world.

1969 ford mustang boss 429

The Mustang Boss is one of the most valued and sought after muscle cars. In total, units were made. The company never intended to create a legend; instead, it had to homologate the semi-hemispherical power unit. According to homologation rules, a company must make at least cars and sell them to the general public. Ford decided that the Mustang would be the car to get the new engine. To make the production of a new car cheaper, Ford used the Cobra Jet Mustang as a base and commissioned Kar Kraft to make modifications.

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Believed to be 26, actual miles. Other features included, color keyed dual racing mirrors, an 8,rpm tachometer, and AM only radio. Goodyear polyglas tires. The Boss engine used a single Holley four-barrel carburetor rated at CFM mounted on an aluminum intake manifold. Engine Engine Type Gasoline. Every part on this car has been analyzed, cataloged and date code deciphered. Wikimedia Commons has media related to Ford Mustang Boss These heads used the "dry-deck" method, meaning the coolant circuit for the block was separate from the cooling circuit for the head The "dry-deck" method of design is intended to strengthen the block by removing the open coolant jackets around the cylinder and reduce hot spots by providing more direct cooling. Cool supercar stuff only. Power was legally rated to horsepower kW although horsepower kW was possible.

If there's an ultimate Ford Mustang, it absolutely has to be the Boss No other pony coming out of a Ford factory has ever matched its single-minded purpose and construction - take the nastiest corporate V8 a NASCAR-spec big block , top it with some aluminum heads with giant ports, and shove it into the Mustang by chopping up the shock towers. Bake for a few weeks at Kar Kraft, then unleash it onto an unsuspecting public.

If you look in the photos, you will see that the front spoiler is not mounted on the car; they were originally packaged with the car from Kar Kraft and installed at the dealership. The Boss is recognized as being among some of the rarest and highly valued muscle cars to date. Unsourced material may be challenged and removed. The engines in some cases were removed from the cars for use in other applications such as tractor pulling, due to the extreme torque and horsepower the engine was capable of producing. Outlying Islands U. Email Us Contact Details Name. A dealer-installed option of a six-pack intake and three 2-barrel carburetors was made available, though very few of these were sold. NASCAR's homologation rules required that at least cars be fitted with this motor and sold to the general public. Power disc brakes. Retrieved 28 March Other features included, color keyed dual racing mirrors, an 8,rpm tachometer, and AM only radio.