UrCar

347-Powered Factory Five Cobra Roadster Mk III 5-Speed

Sold on Hagerty Marketplace · 1965 Factory Five Mk3 Roadster Roadster Mk III · 23,400 miles · Sussex, WI

Final bid
$39,250
Sold for $39,250
Ended Sep 24, 2026

OFFERED WITHOUT RESERVE The Factory Five Cobra Mk III reimagines the 1965 Shelby Cobra 427 as a build-it-yourself kit with a stiffer tubular steel chassis, independent suspension, and modern handling. Builders fit small- or big-block V8s, often 400-600+ horsepower at roughly 2,300 pounds—supercar-rivaling power-to-weight. Its roomier cockpit suits weekend drives, track days, or street builds, while precise steering and strong aftermarket support make it one of the most respected Cobra recreations available. This Roadster Mk III was formerly owned by Factory Five Racing’s Director of Operations and was displayed twice at the SEMA Show in Las Vegas, reflecting an exceptional level of craftsmanship and attention to detail, including the orange paint and black leather interior. Power comes from a late-1980s Ford Mustang GT 5.0L V8 built to 347ci stroker crate engine specifications and enhanced with a Paxton supercharger featuring a 9-pound boost pulley. The combination produced a dyno-tested 499 horsepower when new prior to the installation of a Holley EFI system for improved performance and drivability. Additional features include a Tremec 5-speed manual transmission, independent front and rear suspension with coil-over shocks, four-wheel disc brakes, GT40 rims , and numerous other mechanical and electrical enhancements. This Factory Five Cobra Roadster Mk III is now offered at no reserve by the seller on behalf of its current owner with a clean Wisconsin title describing it as a 1965 Cobra Replica. Highlights Displayed twice at SEMA in Las Vegas Previously owned by Factory Five Racing’s Director of Operations Mustang GT 5.0L V8 built to 347ci stroker crate motor specifications Paxton supercharger equipped with a 9-pound boost pulley Tremec 5-speed manual transmission Factory Equipment Tubular steel space-frame chassis Lightweight composite body construction Exhilarating power-to-weight ratio Independent front and rear suspension Four-wheel disc braking system Rack-and-pinion steering Servicing & Documentation Suspension work and numerous enhancements, including a replacement wiring harness, brakes, and tires, have been completed during its ownership (see attached documents) Known Imperfections Stone chips in the paint Ownership History Formerly owned by Factory Five Racing’s Director of Operations. The current owner has had the car since 2014. Included Items Custom car cover Additional Information This Factory Five has a Massachusetts Vehicle Identification Number sticker, which corresponds with the Wisconsin title. The title calls the car a 1965 Cobra and notes that it is a "Replica."

Specification

PlatformHagerty Marketplace
Year1965
Make / modelFactory Five Mk3 Roadster Roadster Mk III
Miles23,400
ColorOrange
VIN•A31975
Full VIN is on the platform listing
EngineSupercharged 347ci V8
TransmissionManual
DrivetrainRWD
Body styleConvertible
ExteriorOrange
InteriorBlack
Title statusClean
Listing startedSep 22, 2026
Last checked9/27/2026, 10:50:17 PM

From the listing

Listing details

Offered without reserve, Factory Five Cobra Roadster Mk III (1965 Shelby Cobra 427 reimagined kit), Late-1980s Ford Mustang GT 5.0L V8 built to 347ci stroker crate engine specifications, Paxton supercharger with 9-pound boost pulley, Dyno-tested 499 horsepower when new (prior to Holley EFI installation), Holley EFI system, Tremec 5-speed manual transmission, Independent front and rear suspension with coil-over shocks, Four-wheel disc brakes, GT40 rims, Tubular steel space-frame chassis, Lightweight composite body construction, Rack-and-pinion steering, Displayed twice at the SEMA Show in Las Vegas, Formerly owned by Factory Five Racing’s Director of Operations, Clean Wisconsin title describing it as a 1965 Cobra Replica, Massachusetts Vehicle Identification Number sticker corresponds with the Wisconsin title, Included: custom car cover

Known flaws

Stone chips in the paint

Recent service history

Suspension work completed during ownership, Replacement wiring harness installed during ownership, Brakes replaced during ownership, Tires replaced during ownership

Listing details are provided by the platform; UrCar is not the seller. Bid and buy on the platform.