Legacy Metrics

1969 Ford Mustang Boss 429

9F02Z159757roadUnited States
Engine
7.0L (429 cu in) V8, 11.0:1 compression, ~375 bhp (engine not present with car)
Colour
Raven Black

A Raven Black 1969 Ford Mustang Boss 429, built on 21 February 1969 and originally delivered to Hill & Sanders Ford in Wheaton, Maryland, carrying factory designation KK#1356. One of fewer than 900 first-year examples produced, it was fitted with the legendary 429 NASCAR-derived V-8, close-ratio four-speed Toploader, Traction-Lok rear axle, and full competition equipment. The original engine was removed in the late 1980s for a rebuild that was never completed, and the car has been in barn storage for over three decades. It now presents as a project vehicle accompanied by its original build sheet and a Deluxe Marti Report.

Ownership

  1. Auction sale
  2. 1969 →Factory delivery
    Hill & Sanders Ford, Wheaton, Maryland
    full documentation

    Receiving dealership upon completion of factory build on 21 February 1969; first point of delivery in the ownership chain.

  3. Date unknown
    Owner who commissioned engine rebuild
    none documentation

    Had the original 429 engine removed for a rebuild in the late 1980s; the rebuilding shop closed before work was completed and the engine could not be recovered.

  4. Date unknown
    Long-term barn storage owner
    none documentation

    Kept the vehicle in a barn for over three decades; during this period the engine and transmission were removed and the rear end was replaced with a non-original unit.

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. Engine rebuild

    The original 429 engine was extracted and sent to an outside shop for rebuilding. The shop subsequently closed, and the engine could not be retrieved, leaving the car permanently without its matching-numbers unit.

    Work commissioned in the late 1980s but never completed; engine is permanently separated from the car.

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Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.