Is a Buick 455 a good motor?

Is a Buick 455 a good motor?

When Buick developed the 455,they understood that the engine had it’s limitations,but when it was developed to be used in an Electra,the engine was extremely reliable. With our GS’s,these engines make great power and are reliable,only if you don’t push the performance envelope too far.

How much horsepower does a 1971 Buick 455 have?

The edict reduced the compression ratio of the GS 455’s V-8 to 8.5:1, from 1970’s 10.0:1. Horsepower tumbled along with it, to 315, from 350. The extra-cost Stage 1 package dropped two full points of compression and suffered a decline to 345 bhp from 360. These were gross horsepower ratings.

How much horsepower does a 1970 Buick 455 have?

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 Buicks had the 455?


  • 1970-1976 Buick Electra.
  • 1970-1976 Buick Estate.
  • 1970-1976 Buick LeSabre.
  • 1970-1976 Buick Riviera.
  • 1970-1972 Buick Skylark.
  • 1970 Buick Wildcat.
  • 1971-1973 Buick Centurion.
  • 1973-1976 Buick Century.

How much horsepower is in a 455?

They rated the standard issue 455 at 350 HP and the high-performance stage I version at 360 HP. This engine had a short run starting in 1970.

How much HP does a 455 olds have?

Factory horsepower ratings ranged from 310 all the way up to 400 ponies, with 500 lb-ft the most common torque figure. The Cutlass would benefit from the hottest versions of the 455, starting right out of the gate with 1968’s Hurst/Olds, a 390hp special model with a more aggressive camshaft and carb setup.

How much horsepower does a 455 have?

350 HP
They rated the standard issue 455 at 350 HP and the high-performance stage I version at 360 HP. This engine had a short run starting in 1970.

What was the largest motor offered by Buick in 1970?

Consider this: In the muscle car vernacular, Buick’s 455 stood as the most powerful domestic engine in terms of torque output for the next 22 years, bested only when Dodge introduced the Viper in 1992 (not forgetting Cadillac’s V-8 that, in 1970, wrung out 550-lb. ft.

What cars had the 455 engine?


  • Oldsmobile Cutlass.
  • Oldsmobile Vista Cruiser (1970–76)
  • Oldsmobile Custom Cruiser.
  • Oldsmobile 4-4-2.
  • Oldsmobile Hurst/Olds, 390 hp (291 kW)
  • Oldsmobile Delta 88.
  • Oldsmobile 98.
  • 1968–1970 Oldsmobile Toronado, 375 hp (280 kW)

What car has a 455 rocket?

Not only did Oldsmobile stuff the 455 under the hood of the popular 442 muscle car, but it also made it available in the larger, family-oriented Delta 88 as well as the 98 luxury sedans, and even in the front-wheel drive Toronado (marking the General’s first experiment with what would later come to be the industry’s …

Whats better 455 or 454?

Registered. geeteeohguy said: A 455 Pontiac will bolt right into your ’74. It’s a better engine than the 454: more torque, faster on the street, more reliable, and it will appear to be the stock, original 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.

What kind of engine does a Buick 455 have?

Buick’s entry into the big block derby was notable for its lightweight, thin-walled casting, as rather than increasing the stroke of the 430 engine (like Oldsmobile had done in adapting the 425 ci V8 to 455 cubic inches), it bored out the cylinders.

What was the compression ratio on the Buick 455?

Compression was also improved to 11.0:1. Primarily a dealer-installed option, very few Stage 2 cars were ever built, and with an estimated output approaching 500hp, it was aimed primarily at professional drag racers. After a single year of glory, the Buick 455 began to fall back to Earth.

What was the lowest output of a Buick V8?

Larry iv’e been following your V8.Buick forum on the Dynamic and Static Compression teachings and understanding the factory’s loose and kinda sloppy tolerances. Somewhere at sometime I had read that they had 10 or 20 Stage1 engines the factory had dyno tested and the 376hp was the lowest output and they went with that.

When did Buick start making the big block engine?

One such beneficiary of GM’s new largesse was Buick. Like its corporate sibling Oldsmobile, in 1967 Buick began building a big block V8 as its most cutting edge engine option, evolving it over the next few years from 400 cubic inches to 430 cubic inches.