Makes › Ford › Mustang › First generation › Mustang 429 Super Cobra Jet Convertible (1971) · Rare specification · 1971 Ultra Rare
Ford
Mustang 429 Super Cobra Jet Convertible (1971)
1971 Mustang convertibles with the J-code 429 Super Cobra Jet; five with four-speed
Still being researched: history, identification guide, full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Contents
01Overview
At a glance
- Built
- 7 Built
- Years
- 1971
- Engine
- Not yet verified
- Power
- 280 kW / 380 PSFactory: 375 hp · converted
- Top speed
- Not yet verified
- Body
- Not yet verified
- Designer
- Not yet verified
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The 1971 redesign made the Mustang about three inches wider so that it could take Ford's 429 big-block, and the convertible was one of the three body styles that could be ordered with it. The 429 Super Cobra Jet was the top 1971 Mustang engine, rated at 375 hp.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Factory package production1971 Mustang convertibles with the J-code 429 SCJ ('seven') | 71 | Factory production | Independently researched |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
Not yet documented. Have a source? Contribute it.
Variants
How each version differs from the standard Mustang 429 Super Cobra Jet Convertible (1971).
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Not yet verified |
| Displacement | Not yet verified |
| Bore | 110.8 mmFactory: 4.362 in · converted2 Independently researched |
| Stroke | 91.2 mmFactory: 3.59 in · converted2 Independently researched |
| Compression ratio | 11.30:12 Independently researched |
| Fuel system | Not yet verified |
| Power | 280 kW / 380 PSFactory: 375 hp · converted2 Independently researchedEngine figure from the 1971 fact sheet; it is not specific to the convertible. |
| Power at | Not yet verified |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Not yet verified |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Not yet verified |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Not yet verified |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | Not yet verified |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | Not yet verified |
| Dry weight | Not yet verified |
Performance
| Maximum speed | Not yet verified |
|---|---|
| 0–100 km/h | Not yet verified |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
Not yet documented. Have a source? Contribute it.
Sources
Each number links to the exact facts it supports.
-
1
Old Cars Weekly – Car of the Week: 1971 Ford Mustang SCJ convertible Level C
- 7 1971 Mustang convertibles with the J-code 429 SCJ ('seven')
-
2
1971 Ford Mustang fact sheet Level B Over-Drive Magazine
- 429 CID Super Cobra Jet V-8 ... Bore and stroke: 4.362 x 3.590 inches
- Bore and stroke: 4.362 x 3.590 inches
- Compression ratio: 11.30:1
- 375 HP 429 CID Super Cobra Jet V-8
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