Makes › Buick › Riviera › Riviera Stage I (1974) · Rare specification · 1974 Rare
Buick
Riviera Stage I (1974)
Stage I 455 option on the 1974 Riviera
Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Contents
01Overview
At a glance
- Built
- 1,698 Built
- Years
- 1974
- Engine
- 7,460 cc / 7.5 LFactory: 455 cu in · converted
- Power
- 183 kW / 248 PSFactory: 245 hp · converted
- Top speed
- 209 km/hFactory: 130 mph · converted
- 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 1974 Riviera lost the boat-tail body for a conventional notchback, and sales fell to a record low of 20,129. The Stage I 455 remained as an option at 245 hp, 15 hp above the standard engine.
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 production1974 Rivieras with Stage I | 1,6981,2 | 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
In 1974 the Riviera had a more common notchback roof with a centre pillar and fixed rear side glass for the first time, and weighed about 85 pounds more, around 4,700 lb curb weight. Of the 20,129 cars, 4,119 had the GS handling option and 1,698 the Stage I engine. A road test of the era rated top speed near 130 mph.
Variants
How each version differs from the standard Riviera Stage I (1974).
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 | 7,460 cc / 7.5 LFactory: 455 cu in · converted1 Independently researchedDisplacement per Riviera 455 V8; ROA text refers to the Stage I engine as an upgrade over the standard 455. |
| Bore | Not yet verified |
| Stroke | Not yet verified |
| Compression ratio | Not yet verified |
| Fuel system | Not yet verified |
| Power | 183 kW / 248 PSFactory: 245 hp · converted1 Independently researched |
| 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 | 2,130 kgFactory: 4,700 lb · converted1 Independently researched |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 209 km/hFactory: 130 mph · converted1 Independently researched |
|---|---|
| 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.
The 1974 car is a notchback Riviera with vertical-bar grille and straight side accent line; the GS ($108 ride-and-handling package) and Stage I engine remained separate options, so a Stage I car is identified by engine specification and documentation.
Sources
Each number links to the exact facts it supports.
-
1
Evolution of the Riviera - 1974 Level B Riviera Owners Association · 2003-11-01
- 1,698 were upgraded to the 245 horsepower Stage I engine
- upgraded to the 245 horsepower Stage I engine
- 245 horsepower Stage I engine, an increase of 15 horsepower over the standard 455
- about 4,700 pounds curb weight
- one road test rated the car as having a 130 MPH top speed
-
2
Gran Sport / GS / Stage 1 Rivieras 1970-1975, part 3 (D. Falk & R. Knott, The Riview, Riviera Owners Association) Level B
- 1698 1974 Rivieras with Stage I
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