Legacy Metrics

1970 Chevron B17 F3

F3/70/8racingUnited Kingdom

A 1970 Chevron B17 Formula 3 chassis, one of nine built that year, originally constructed for Ken Sedgely to contest the UK Forward Trust F3 Championship using a 1-litre engine. It subsequently passed through Chevron dealer Fred Opert in New Jersey and a Florida owner before being acquired by the current vendor while employed at Lola. The car has been comprehensively rebuilt around a new chassis by specialist John Bright; the original shortened chassis, stamped F3/70/8, is included in the sale.

Ownership

  1. 2019-02-23Auction sale
    Estimate £30,000 – £35,000

    Iconic Auctioneers catalogue lot →

  2. 1970-06-01 → 1971-07-01Factory delivery
    Ken Sedgely
    partial documentation

    Used the car in the UK Forward Trust F3 Championship on 1-litre regulations and also entered a small number of races in France. Sold when engine rules changed from 1-litre to 1.6.

  3. 1971 →Private sale
    Fred Opert
    partial documentation

    Chevron dealer based in New Jersey; had the bodywork repainted from blue to his characteristic yellow livery.

  4. Date unknownPrivate sale
    David Wood
    partial documentation

    Florida-based owner who acquired the car for $3,400. During this period the original chassis was shortened to create a short-circuit parking-lot racer.

  5. Date unknownPrivate sale
    Current vendor
    partial documentation

    Purchased the car while employed in the USA by Lola race cars, raced it in the States, then brought it back to the UK and commissioned a full rebuild.

Competition

  1. 1970Forward Trust F3 Championship
    UK Forward Trust F3 Championship
    Driver: Ken Sedgely

    Car ran in 1-litre format throughout the season and also contested a small number of races in France.

  2. 1971Forward Trust F3 Championship
    UK Forward Trust F3 Championship
    Driver: Ken Sedgely

    Continued racing with a restricted Lotus Twin Cam engine until July 1971 when the regulations moved to 1.6-litre.

  3. Post-rebuild races (four events)
    Driver: Current vendor

    The newly rebuilt car had started only four races at the time of cataloguing.

Maintenance & restoration

  1. Modification

    The original chassis was cut down by approximately 10 inches to convert the car into a short-circuit parking-lot racer; this modified original chassis is retained and included in the sale.

    Occurred during prior ownership, believed to be the David Wood period.

  2. Restoration
    John Bright

    Complete rebuild around an entirely new chassis by specialist John Bright; correct Hewland MK8 gearbox fitted with a new 7/31 crown-wheel-and-pinion, and a new exhaust system installed. The engine-fitting kit was also fully prepared.

    Provenance of the original chassis verified by Kevin Hodgkinson, a Chevron employee from 1968 to 1971. Car sold as a rolling chassis without the MAE engine, which was on loan.

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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.