Lot #2518 - Only offered for two years, 1969 (859 built) and 1970 (499 built), the Mustang BOSS 429 represents the extreme lengths taken by Ford to remain competitive in NASCAR stock car competition. Because the BOSS 429 twisted HEMI engine was several inches too wide to fit between the Mustang's stock shock towers, Ford sent partially constructed Mustangs from its Dearborn plant to Brighton, MI, subcontractor Kar Kraft for BOSS 429 installation. The completed street models homologated the engine for use in NASCAR competition (ironically, where they competed in Torino-bodied race cars). This 1969 Ford Mustang BOSS 429 is KK #1371 and was the 170th unit produced. It was awarded 504 points at a major Mustang meet in Charlotte, NC. The condition of the car - coupled with the presence of original paperwork, such as the Build Sheet, three invoices and other critical documents - earned the extra points. It is a stunning semi-restored example that retains its original Raven Black paint in the door jambs, trunk and several other regions. It is complete with the factory-installed smog pump, distributor, exhaust manifolds, carburetor and engine speed limiter. The underside is a mix of untouched factory original surfaces and expertly rendered touch-ups by noted BOSS 429 expert/restorer Bob Perkins. The correct 1969-only safety-wired extra-duty front suspension members are present and differ from the BOSS 302-sourced items used on the 1970 BOSS 429. The 1969-specific 3/4" rear sway bar and transverse muffler are present and complement this car's 820S power plant. Installed in only the first 279 BOSS 429s, the 820S engine has magnesium rocker covers, larger valves and big NASCAR connecting rods with 1/2" rod bolts, all of which are present in this example. This is one of the finest BOSS Nines in existence.