324 cu.in. Oldsmobile Rocket Engine Owner Bill Gromling o… Flickr

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May 7, 2023 Updated: July 7, 2023 If you're a fan of classic American cars, chances are you've heard of the Oldsmobile 350 Rocket V-8 engine. This iconic engine was first introduced back in 1968, and it quickly became one of the most popular engines of its time.

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Oldsmobile changed tack and developed a V-6 as well as 60- and 70-degree V-8s, but GM brass soon relented and, by March 1947, greenlighted the Olds 90-degree V-8 project out of which the Rocket was born. The Rocket found the perfect home in the engine bay of the 88, with its Harley Earl-inspired styling that drew cues from wartime fighter planes.

324 cu.in. Oldsmobile Rocket Engine Owner Bill Gromling o… Flickr


Photo by Jim Black. Oldsmobile's optional J-2 Rocket was based on a standard 371-cu.in. engine, though a trio of two-barrel carburetors and a 10:1 compression ratio helped the V-8 develop 300 hp at 4,600 rpm and 415 lb-ft of torque at 3,000 rpm. The $83 cost in 1957 equals $907 today. Playing a helping hand was the Fiesta's equally new.

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The advanced Oldsmobile Rocket V8 started a series of Oldsmobile engines that, along with the 1949 Cadillac V8, were the first post-war overhead valve V8s produced by General Motors.

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Formally announced in January of 1949, a few months after the Cadillac OHV V8, its General Motors stablemate, the Oldsmobile Rocket V8 was first offered in the luxury 98 series, then in the mid-priced, A-Body 88 series shortly thereafter (launching the famous "Rocket 88" of song and story).

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August 20, 2008 Family Cars, Model Histories 44 Comments In the mid-1950s, American automakers were engaged in a ferocious horsepower race. By the time the battle reached a temporary ceasefire at decade's end, the average power of the typical passenger car had (at least on paper) more than doubled.

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Oldsmobile showed a real propensity for power in the '50s. The 304-cu.in. OHV V-8 that the division introduced in 1948 ran 7.25:1 compression and had only 135hp on tap; by '57, less than a decade later, the base Rocket T-400 V-8 displaced 371-cu.in., sported 9.5:1 compression, and was rated at 277 horsepower--more than double the earlier 88's output.

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The introduction of the "Rocket 8" V-8 for the 1949 Oldsmobiles was perhaps the pinnacle of his achievements, incorporating in its overhead-valve design such features as five main bearings,.

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The Rocket 88 vaulted Oldsmobile from a somewhat staid, conservative car to a performer that became the one to beat on the NASCAR (National Association for Stock Car Auto Racing) circuits.

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Engineered by Charles Kettering, the first-gen Rocket originally displaced 303 cubic inches (5.0 liters) and featured hydraulic lifters, an oversquare bore:stroke ratio, a counterweighted forged.

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The Rocket 88 would see consistent improvements over the next two decades or so. Displacement swelled from 303 Ci or 5 liters all the way to the gargantuan 455 Ci 7.5 liter V8 in the early 70s. Even still, the same design philosophy carried with it throughout its production run. You see, the rocket 88 is not a racing engine, it's not even a.

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Oldsmobile might be gone, but the Rocket brand hasn't been forgotten by collectors shopping for a 1950s American automotive icon.. Both engines had 9.25:1 compression. Olds 324 blocks have two-bolt main caps, and the heads use shaft-mounted rockers. The 1949-1955 303/324 heads had 1.75-inch intake/1.43 exhaust valves, but for 1956, the port.

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Oldsmobile, despite initiating a string of monikers to describe the engine, including Golden Rocket, Sky Rocket, Super Rocket, Jetfire Rocket and Starfire Rocket, and consistently bumping the engine's compression ratio and displacement, didn't make much of an effort to recapture its performance image until after the successful Pontiac GTO of 1964.

The V8 Rocket engine is unveiled in 1949. Oldsmobile is now seen as a


The Oldsmobile V8, also referred to as the Rocket, is a series of engines that was produced by Oldsmobile from 1949 until 1990. The Rocket, along with the 1949 Cadillac V8, were the first post-war OHV crossflow cylinder head V8 engines produced by General Motors.

1956 Oldsmobile Rocket 98 Engine Photograph by Roger Mullenhour


The Oldsmobile V8 engine, often known as the Rocket, is one of the longest-serving engines in automotive history. ©GM It was in production from 1949 to 1990 and powered everything from.

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Oldsmobile (formally the Oldsmobile Division of General Motors) was a brand of American automobiles, produced for most of its existence by General Motors. Originally established as "Olds Motor Vehicle Company" by Ransom E. Olds in 1897, it produced over 35 million vehicles, including at least 14 million built at its Lansing, Michigan factory alone.