How much horsepower does a 455 Buick have?
Based on the 400 and 430 V-8s, the Buick 455 had a 4.31-inch bore and 3.90-inch stroke. 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.
Are Buick and Pontiac 455 the same?
Buicks got their 455 inches by using a bigger bore (4.3425) and shorter stroke (3.90) than Pontiac. The Stage 1 455 was a serious engine.
How much HP does a 455 big block have?
Oldsmobile 455 V8 Big Block 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 much horsepower can you get out of a 455 big block?
Big-block Olds engines are famous for making torque, and this combination was no exception. Even at a mere 2,500 rpm, the Olds cranked out nearly 490 lb-ft, then went on to grunt out a solid 511 lb-ft at 3,700 rpm, and still managed to make a solid 445 hp at 5,000 rpm….
| RPM | TQ | HP |
|---|---|---|
| Average | 474.5 | 358.7 |
How much horsepower can you get out of an Olds 455?
As was common practice at the time, Oldsmobile manufactured a number of 455 variants, altering compression ratios, piston designs, and intakes depending on which application the motor was used for. Factory horsepower ratings ranged from 310 all the way up to 400 ponies, with 500 lb-ft the most common torque figure.
How much horsepower can a 455 big block have?
They rated the standard issue 455 at 350 HP and the high-performance stage I version at 360 HP.
What kind of horsepower does a Buick 455 have?
To be comparable in the Skylark GS we also listed the standard 455 at 350 HP (to be lower than the Stage 1) although the engine was the same as used in Electra, Wildcat, Riviera and LeSabre Models. Hopefully, this will clarify the confusion among the enthusiasts. 1967-68 400/430 – 1.59 to 1, aluminum
What kind of engine does a 1970 Buick have?
General Specifications for the 1968 400/430 and 1970 Buick 455 Cubic Inch Engines. The following information has been directly complied from original Buick service manuals for the respective year of vehicle manufacture. Building an engine? Print out our Engine Build Sheet, Click Here!
What was the horsepower of a 1970 Oldsmobile 455?
However, what made the 455 special was its torque rating of 510 foot-pounds, more than any other engine on the road in 1970. The 1970 Riviera’s 455 generated 370 horsepower to achieve 0 to 60 mph in 7.9 seconds and the quarter mile in 17 seconds.
When did the Oldsmobile 455 Rocket come out?
Olds 455 Oldsmobile’s 455 was produced from 1968 to 1976 as the Rocket 455. It featured a 4.126-inch bore and 4.25-inch stroke. Oldsmobile had cheated the 400-cubic-inch GM ban in 1968-1969 by offering it as an underpublicized Hurst/Olds option on the 4-4-2 models.