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1969 Ford Mustang Boss 429 NASCAR

Ford Mustang Boss 429 NASCAR - 1969 - Picture 11CRG072818647AA
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Ford Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AAFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AKFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647ALFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647ABFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647ACFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647ADFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AEFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AFFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AGFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AHFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AIFord Mustang Boss 429 NASCAR - 1969 - Thumbnail Picture 11CRG072818647AJ

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About This 1969 Ford Mustang

Posted: 28 Mar 2011

Rare and much sought-after Boss 429 NASCAR, a homologation special to get the Mustang into NASCAR racing. Just 858 were built at the same Kar-Kraft factory that built the Le Mans-winning GT40s.

From Seller:

To look at, the Boss 429 is somewhat underrated; there are no stripes, no chrome tips and no wheel moldings. The only real details were a large hood scoop and some 429 decals. Where this vehicle shines, is under the hood. The limited edition Boss 429 Mustang was created to homologate the 429 engine for NASCAR racing. All 858 Boss 429s that were built between 1969 and 1970 were made at the Kar-Kraft factory in Brighton, Michigan, where Ford had built the Le Mans GTs.

Modifying the Mustang to accommodate the enormous engine was tricky. The shock towers were relocated and the suspension was lowered, allowing better handling than the standard-engine Mustang. All of this was done by hand. In fact, Ford would have been better off placing the Boss 429 engine in the Torino, but chose to use the Mustang for because of its image and immense popularity.

The Boss 429 engine was based on a strengthened version of the production 429. These blocks have HP429 cast into the front of the block (driver’s side). It used four bolt mains, a forged steel crank and forged steel connecting rods. The big deal with this engine is its aluminum cylinder heads which featured a modified Hemi type combustion chamber which Ford called “crescent”. These heads used the “dry-deck” method, meaning no head gaskets were used. Each cylinder, oil passage and water passage had an individual “O” ring to seal it. The Boss 429 used a single Holley four-barrel carburetor rated at 735 CFM mounted on an aluminum intake manifold. 1969 versions used a hydraulic lifter camshaft; 1970 models got a mechanical lifter camshaft along with an improved dual exhaust system.

Each Boss 429 Mustang came with a KK sticker placed on the inside of the driver’s door above the Ford Warranty Plate which signified Kar Kraft’s production number. The 1969 Boss 429s were numbered from “KK 1201″ to “KK 2059”. The Boss 429 owned by The Burt Collection is numbered “KK 1513”.

Besides the Boss 302, the Boss 429 was the only other Mustang that had its Serial number stamped on the back side of the engine block assembly, on the inner front fender panels, on the transmission housing and on the chassis itself.

This Ford Mustang Boss 429 Fastback has been a part of our private collection for several years and has been coveted and admired. We have now decided that it’s time to let someone else enjoy this wonderful piece of history.

DETAILS:

Engine: 429 / 500 + HP

Bob Tasca prepared drag car

White with black interior

2,020 original miles

Manual 4-speed gearbox

Roll bar

Outstanding car that has survived the test of time

Steve Strange certified with history

Power steering

Power disc brakes

Competition suspension

Front air spoiler

Hood scoop

Drag pack

Traction lock rear

The 429 4-V Boss engine was introduced in mid-1969 in limited quantities. Basically, it was a street version of the highly successful engine used in many Ford and Mercury NASCAR vehicles. It has many design features that provide exceptional performance and durability. It’s immediately recognizable by large, cast-magnesium rocker arm covers with deep indentations that allow placement of the spark plugs almost centrally over the bore.

The cast-aluminum cylinder heads feature a semi hemispherical combustion chamber design. This allows the valves to be “canted” transversely in a true cross-flow configuration in the direction of gas flow for maximum breathing. Large round ports and oval exhausts are used in place of the conventional rectangular ports, for improved breathing. Valve guides and sears are pressed into the aluminum heads. Instead of a cylinder head gasket, rubber washers are used to seal the water and oil passages between the head and block, and metal “O” rings seal the cylinder bores.



Specs & Details

Exterior Color: white
Interior Color: black
Engine: 429-4V Boss V8
Transmission: manual
Miles Driven: 2,200

Source: The Burt Collection

Lake Forest, Illinois, U.S.A.
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