How much horsepower does a 1973 Buick 455 have?
Those remained big numbers in 1973, when nothing was making over 300 horsepower. Even Pontiac’s SD-455, which was originally rated 310 horsepower was quickly corrected to 290. A 454 Corvette was only packing 275 horsepower and 395 lb-ft. and the strongest GTO had just 250 horsepower.
How much horsepower does a 1973 Buick Riviera have?
This meant that by ’73, the standard 455 employed by the Riviera was rated at 250 net hp. Compared to the 370 gross horses of 1970, it must have seemed dismal for gearheads. A Rochester Quadrajet four-barrel fed the big V-8, helping it produce a healthy 380-lb.
How much horsepower does a 1971 Buick Riviera have?
Buick Riviera III 7.5 (250 Hp) 1971, 1972, 1973 Specs
| General information | |
|---|---|
| Power | 250 Hp @ 4000 rpm. |
| Power per litre | 33.5 Hp/l |
| Torque | 508 Nm @ 2800 rpm. 374.68 lb.-ft. @ 2800 rpm. |
| Engine location | Front, Longitudinal |
How much horsepower can you get out of a Buick 455?
The base model was rated at 350 hp (261 kW), while the 455 Stage 1 equipped with a single 4-barrel Rochester Quadrajet carburetor was rated at 360 hp (268 kW) at 4600 rpm. The regular 455 produced a rated 510 lb⋅ft (691 N⋅m) of torque at 2,800 rpm, more than any other muscle car engine.
What engine was in a 1973 Buick Riviera?
Buick V8
Third generation (1971–1973)
| Third generation | |
|---|---|
| Engine | 455 cu in (7.5 L) Buick V8 |
| Transmission | 3-speed TH-400 automatic |
| Dimensions | |
| Wheelbase | 122.0 in (3,099 mm) |
What year did Buick come out with the 455?
In 1968 Oldsmobile debuted the Rocket 455, an engine that was part of a family of 3 (with 400 and 425 cubic inch engines sharing a similar architecture). Offering between 310 and 400hp, and pushing out a spectacular 500 lb-ft of torque, the 455 big block was most famously used in the 442 muscle car.
How fast is a 1971 Buick Riviera?
According to the ProfessCars™ estimation this Buick would accelerate 0-60 mph in 8.4 sec, 0-100 km/h in 8.9 sec, 0-200 km/h in 68.4 sec and quarter mile time is 16.3 sec. This car is 5522 mm / 217.4 in long, 2029 mm / 79.9 in wide and 1372 mm / 54 in high.
What engine was in a 1971 Buick Riviera?
455cid V8
1971 Buick Riviera Specs Engine 455cid V8. Power Output 315-330 bhp. Transmission Three-speed Turbo Hydra-Matic automatic.
Is the 1971-73 Buick Riviera a speedster?
Such is the case with the 1971-’73 Buick Riviera, a car that some question while others gaze lustfully upon. The Riviera’s boattail is one design element that has been on the drawing board for far longer than anyone would care to recall, seen most notably on Auburn Speedsters.
What is the rear differential ratio on a 1971 Buick Riviera?
REAR AXLE The final drive ratio is a 2. 93:1 that was standard all three years. Buick’s name for the limited-slip differential is Positive Traction. It was optional on base Riviera models and arrived under the frame of GS editions standard in 1971-’72 with a 3. 42 rear gear.
What is the wheelbase of a Buick Riviera?
BODY/FRAME Buick engineers abandoned the cruciform style frame in favor of a perimeter design to accommodate the new four-link rear suspension, resulting in a wheelbase measuring 122 inches; longer than any previous Riviera.
Is the Buick Riviera a niche group?
Each generation of automobile models has, for one reason or another, found itself nestled within its own clique: loved or hated, niche group or broad appeal. Such is the case with the 1971-’73 Buick Riviera, a car that some question while others gaze lustfully upon.