How much HP does a 455 olds have?

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 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. In 1975 General Motors started using the same engines across the different divisions and platforms.

Is the Olds 455 a good engine?

There are people that will tell you that the 455ci Oldsmobile Rocket motor makes a better street engine than a race motor. In truth, a stock 455 does have a couple of drawbacks that are detrimental to living life above 4,000 rpm for extended periods. The 455's Achilles' heel is a poor oil return system.

What is the most powerful Oldsmobile engine?

The standard 1965-1967 425 cu in (7.0 L) was called the Super Rocket, and was the most powerful engine option for the Oldsmobile 88 and 98 of 1965-1967. Compression ratios of 9.0:1 at 310 hp (230 kW) or 10.25:1 at 360 hp (270 kW) were available in the U.S.

Is a 455 Olds a big block?

Overshadowed by the likes of Chevrolet and Pontiac, Oldsmobile delivered one of the mightiest, and most versatile big block engines of the period: the 455 V8.

Dyno Testing a Mondello 455 Olds Big Block - Horsepower S13, E8

How much does a 455 Olds weigh?

How Much Does A 455 Olds Weigh? The Olds 350 is about 560 lbs, and the 455 are about 620 lbs each.

What cars had the 455 engine?

Pontiac, Oldsmobile, and Buick each offered 455 cubic inch big block V8 engines in its muscle cars and full size models, but these engines didn't share any attributes other than their displacement.

How many liters 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.

What is the bore and stroke on a Oldsmobile 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.

How much horsepower does a 454 big block have?

The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque.

How much torque does a 455 have?

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 do I identify a 455 Olds engine?

The numbers cast on the lower left corner of the engine block -- or on the cylinder head -- indicate the year the engine was manufactured. The casting numbers for a 455 include 395021F, 396021Fa and 231788L.

How much horsepower does a 1970 Buick 455 have?

Engine horsepower and torque curve for Buick GS 455 Convertible (man. 3) in 1970, the model with 2-door convertible body and V-8 7468 cm3 / 455.7 cui, 261 kW / 355 PS / 350 hp (SAE gross) offered since September 1969 for North America U.S.. Detailed engine characteristics.

How much horsepower does a 1973 Buick 455 have?

The squeeze inside Buick's 455 Stage 1 plummeted from 10:1 to 8.5:1. Power fell to 330 horsepower and 455 lb-ft and then in 1972 gross output ratings were replaced with the net system; numbers dropped again to 270 horsepower and 390 lb-ft. Those remained big numbers in 1973, when nothing was making over 300 horsepower.

How much does a Pontiac 455 block weigh?

How Much Does A Pontiac 455 Block Weigh? A POONTIAC is (326-455) 640 lbs.

Did Pontiac make a 455?

The Pontiac 455 V8 was The GTO and Firebird Brand's Last "Big Block" 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.

What was the fastest Oldsmobile?

The 442 was Oldsmobile's fastest offering, darting from 0-60 mph in just 5.8 seconds. This muscle car can give as much as 390 hp, making it one of the leading in the industry during its time.

Is Pontiac 455 and 400 the same block?

We took the question to David Butler of Butler Performance in Lawrenceburg, Tennessee, for his professional opinion. He advises, "With the exception of the mid- to late-1970s PN 500557 casting, we consider all Pontiac 400 blocks functionally identical. The 455 blocks from 1970 to 1976 are also functionally identical.

What year 454 had the most HP?

The 1970 versions of the Chevrolet 454 were the most powerful, with the LS5 putting out around 360 horsepower and the LS6 delivering about 450 horses.

How much HP does a 460 big block have?

What Are the Specs of the Ford 460 Crate Engine? The Ford 460 crate engine – the Z460 – makes 575 horsepower and 575 lb. -ft. of torque.

How much horsepower does a 7.4 454 have?

The 7.4 L (454 cu in) V8 features MPFI (multi-port fuel injection) and 2 valves per cylinder. Among the many improvements was more power for the gasoline engines. The Vortec 7400 big block V8 has a 107.95 mm bore, 101.6 mm stroke, produces 290 horsepower (220 kW) at 4000 rpm and 410 lbf·ft (560 N·m) at 3200 rpm.