Makes › Chevrolet › Cosworth Vega · Rare production · 1975–1976 Rare
Chevrolet
Cosworth Vega
Vega fitted with a Cosworth-developed twin-cam aluminium-head engine and electronic fuel injection, 3,508 sold.
Still being researched: identification guide, full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Photo: MercurySable99 · CC BY-SA 4.0
Contents
01Overview
At a glance
- Built
- 3,508 Built
- Years
- 1975–1976
- Engine
- Inline four · 1,994 cc / 2.0 LFactory: 121.7 cu in · converted
- Power
- 82 kW / 112 PSFactory: 110 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 Cosworth Twin Cam Vega was a limited-edition Vega hatchback offered in mid-1975 and in 1976. Its sixteen-valve DOHC cylinder head was developed with Cosworth of England from 1972 on the existing Vega aluminum block.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Chevrolet Cosworth Vega (Wikimedia Commons search)
Photo: MercurySable99 · CC BY-SA 4.0
Chevrolet Cosworth Vega (Wikimedia Commons search)
Photo: MercurySable99 · CC BY-SA 4.0
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionCosworth Vega sales over the two years of production (2,062 in 1975, 1,446 in 1976) | 3,5081,2 | Factory production | Factory reported |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
Chevrolet had Jim Musser, principal designer of the Vega engine, work with Keith Duckworth at Cosworth Engineering on a high-output version. The complete engine was about sixty pounds lighter than the iron-head standard Vega engine, and its Bendix-built speed-density electronic fuel injection was the first electronic injection on a Chevrolet passenger car. Production ended in July 1976.
Variants
How each version differs from the standard Cosworth Vega.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Inline four3 Independently researchedOnly the single-car sale listing (level D) states this; status unknown. From an enthusiast source (level D) – not yet confirmed by the maker or a registry. |
| Displacement | 1,994 cc / 2.0 LFactory: 121.7 cu in · converted3 Independently researchedLevel D source only; status unknown. From an enthusiast source (level D) – not yet confirmed by the maker or a registry. |
| Bore | Not yet verified |
| Stroke | 82.3 mmFactory: 82.3 mm3 Independently researchedLevel D source only; status unknown. From an enthusiast source (level D) – not yet confirmed by the maker or a registry. |
| Compression ratio | Not yet verified |
| Valvetrain | DOHC, 16 valves1 |
| Fuel system | Bendix speed-density electronic fuel injection4 |
| Power | 82 kW / 112 PSFactory: 110 hp · converted3 Independently researchedLevel D source only; status unknown. Rating standard not stated. From an enthusiast source (level D) – not yet confirmed by the maker or a registry. |
| 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
1975-1976 Chevrolet Cosworth Vega Level A GM Heritage Center · 2015-11-26
- Chevrolet reports a total of 3508 Cosworth Vega sales
- special sixteen valve DOHC cylinder head assembly
-
2
1975-1976 Chevrolet Cosworth Vega, GM Heritage Center Level A
- 3508 Cosworth Vega sales over the two years of production (2,062 in 1975, 1,446 in 1976)
-
3
1975 Cosworth Vega (single-car sale listing) Level D Second Chance Garage · 2014-06-26
- aluminum - block 4 - banger
- reduce the displacement from 139.5 cubic inches to 121.7 cubic inches
- The stroke was shortened from 92.0 to 82.3mm
- endowed the Cosworth Vega with 110hp
-
4
1975-1976 Chevrolet Cosworth Vega Level A GM Heritage Center (Wayback capture)
- speed density electronic fuel injection system designed and manufactured by ... Bendix
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