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How much horsepower does a 1972 Oldsmobile 455 have?
Its 455-cu.in. engine, which was introduced in 1968 and featured in the Hurst Olds, Toronado and full-size models, became the standard 4-4-2 powerplant, rated at 365 hp.
Was Pontiac 455 a big block?
That’s right, the 455 was not a big block because Pontiac never had a big block. Or a small block. Throughout its entire existence, Pontiac only ever manufactured a single V8 engine family!
How much power can a Buick 455 make?
The standard 455 wielded 350 horsepower and the performance Stage 1 version developed 370, although testing on many Buick 455s put the horsepower rating closer to 425. However, what made the 455 special was its torque rating of 510 foot-pounds, more than any other engine on the road in 1970.
What size is a 455 motor?
455 cubic inch
Of the three 455 cubic inch V8 engines offered by General Motors in 1970, the Pontiac 455 took the most unusual route to the market. Unlike Oldsmobile and Buick, which had both big block and small block engines on the shelf, Pontiac had been developing the same eight-cylinder formula since 1955.
What liter is a 455 engine?
Displacement began at 287-cubic-inch (4.7 L) and grew as large as 455-cubic-inch (7.5 L) by 1970. Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981.
How much horsepower does a 427 engine have?
Late 1960s. By 1967, Chevrolet offered horsepower ratings of 385 and 400 on two 427s, with the torque rating for both at 460 pound-feet. The 425-horsepower 427 remained untouched. However, Chevrolet introduced its L71 427 with three two-barrel carburetors to generate 435 horsepower and 460 pound-feet of torque.
How much horsepower can you get out of a Pontiac 455 engine?
Horsepower and Torque The 455 High Output generated 335 horsepower and 480 foot-pounds of torque for 1970 and 1971. However, power steadily declined beginning in 1972 when Pontiac reduced it to 300 horsepower and 415 foot-pounds of torque.
How many horsepower does a Olds 455 Rocket engine have?
The 1968 Delta 88 produced 310 horsepower with the 455 engine, while the Ninety Eight with a four-barrel produced 365 horsepower. In the early ’70s the fuel crisis and rising emission standards ended the muscle car era. By 1975 the horsepower in the Ninety Eight was down to 190. James Jordan has been a writer and photographer since 1980.
What kind of engine does a 1973 Pontiac Firebird have?
4) in 1973, the model with 2-door fastback coupe body and V-8 7469 cm3 / 455.8 cui, 186.5 kW / 254 PS / 250 hp (SAE net) of power, 502 Nm / 370 lb-ft of torque, 4-speed manual powertrain offered since September 1972 for North America .
What was the horsepower of a 1970 Buick 455?
The standard 455 wielded 350 horsepower and the performance Stage 1 version developed 370, although testing on many Buick 455s put the horsepower rating closer to 425. However, what made the 455 special was its torque rating of 510 foot-pounds, more than any other engine on the road in 1970. Buick 455 Performance
What was the horsepower of an Oldsmobile in 1976?
The engine was used across the Oldsmobile lineup through 1976 and horsepower ranged from 275 up to 400. The bore and stroke (the size of cylinder and the distance it moves) was 4.126 and 4.25 inches through most of the life of the engine. With a longer stroke, torque was generally high.