The Rocket 350, built from 1968 to 1980, was totally distinct from the 350s made by other GM divisions. Its 350 cu in. engine had an extremely oversquare 4.057 in (103.0 mm) bore and 3.385 in (86.0 mm) stroke. 160 to 325 horsepower were produced.
How do I identify an Oldsmobile 350 rocket engine? The large number that follows the casting number identifies the specific small-block engine. A “2” denotes a 350 ci engine, while a “4A” or “4B” denotes a 403 ci engine. For serious high performance, you should only use blocks with these numbers. Oldsmobile small blocks have a lot in common.
Overview of Oldsmobile 350 Rocket Engine.
The 1955 Chevrolet 265 cu in (4.3L) V8 that was available in the Corvette and Bel Air marked the start of the first generation of Chevrolet small-block engines. Due to the then-popular cartoon character, later shortened to “Mouse,” it quickly became well-known among stock car racers and was given the moniker “Mighty Mouse”.
When compared to 1957, it was 283 cu in (4.6 L). It was one of the first production engines to produce 1 hp (0.7 kW) per 1 cu in when equipped with the optional Rochester mechanical fuel injection (FI) (16 cm3). Other Chevrolets began using the 283, taking the place of the 265 V8s.
It was followed by a powerful 327 cu in (5.4 L) model that could produce up to 375 hp (280 kW) (SAE gross power, not SAE net power or the most recent SAE certified power values), increasing horsepower per cubic inch to 1.15 hp (0.86 kW).
The “Turbo-Fire” or “High Torque” V8 was the name given to the small-block engine from 1954 to 1974. The most well-known Chevrolet small-block, however, was the 350 cu in (the 5.7 L) series. It is the most widely utilized small block of all time, being installed in everything from station wagons to sports cars, commercial vehicles, and even boats and (in greatly modified form) airplanes.
The Chevrolet small-block engine is a line of gasoline-powered, V-8 car engines that were built by General Motors’ Chevrolet division between 1954 and 2003, all of which used the same basic engine block.
The small-block family of engines ranged in displacement from 262 cu in (4.3 L) to 400 cu in (6.6 L) and were referred to as “small-block” engines because of their diminutive size in comparison to the physically much larger Chevrolet big-block engines.
The design of this engine is credited to engineer Ed Cole. Saginaw Metal Casting Operations in Saginaw, Michigan, cast the engine block and cylinder heads.
Oldsmobile Cutlass Holiday Sedan Rocket 350 V-8 310 hp 4-speed (man. 4) in 1969, the model with a 4-door sedan body and a V-8 5737 cm3 / 350.1 cui, 231 kW / 314 PS / 310 hp (SAE gross) offered since September 1968 for North America. Specs datasheet with technical data and performance data.
This Oldsmobile would accelerate from
- 0 to 60 mph in 6.7 seconds,
- from 0 to 100 km/h in 7 seconds,
- from 0 to 200 km/h in 52 seconds, and the quarter-mile would take 15.2 seconds.
This vehicle measures 5230 mm (205.9 in) in length, 1951 mm (76.8 in) in width, and 1359 mm (53.5) in height. For complete information on output, outside and inside dimensions, fuel efficiency, and performance, see the tables below.
Oldsmobile’s fastest model, the 442 blasted from 0 to 60 mph in just 5.8 seconds. This muscle car, which can produce up to 390 horsepower, was among the best in its field at the time.
The 1970 Oldsmobile 442 is a second-generation model that set a higher standard for horsepower in the era’s muscle car competition. It was the ultimate high-performance Oldsmobile with the W30 package. The 370 horsepower 455 CID V8 was part of the W30 package.
Oldsmobile introduced the Rocket 455, a family of three engines, in 1968. (with 400 and 425-cubic-inch engines sharing a similar architecture). The 455 big block, which produced between 310 and 400 horsepower and a stunning 500 lb-ft of torque, was most famously used in the 442 muscle car.
In 1971, Olds discontinued the W-31 option package with the Rocket 350, and in 1972, it downgraded the 4-4-2 from its model to a Cutlass option.
Tighter emission regulations, rising insurance costs, and the federal government’s relentless criticism of Detroit automakers for producing powerful vehicles with subpar safety features marked the end of the muscle car era.
Additionally, automakers switched from using “gross” to “net” horsepower ratings. The Rocket 350 consequently turned into a shell. The 350 had two different horsepower ratings for 1972: 160 and 180. Both engines were rated at 275-foot pounds of torque. The remainder of the 1970s was spent with the 180-horsepower model.
It usually means the pressure is being applied to the cooling system through a cracked block, cylinder head, or blown head gasket when pressure builds up that high and that quickly. It might be a good idea to check the radiator cap as well because, typically, the cap will pop before the hose does when the pressure inside reaches a certain level.
I suggested you leave some air in the system and let the vented system fill the radiator for you, which it will do after it has been driven for a while. I wasn’t trying to say it has an air pocket in my previous post. If air bubbles continue to appear in the radiator after you remove the cap and turn on the engine, there is pressure coming in from somewhere else.
Some related FAQs about Oldsmobile 350 Rocket Engine.
The 5736 cm3 (350 cu-in) V-8 petrol engine in the 1971 Oldsmobile Cutlass Supreme II 5.7 V8 has a capacity. A 1971 Oldsmobile Cutlass Supreme II 5.7 V8 has how much horsepower (hp). The 314 PS/310 bhp/231 kW 1971 Oldsmobile Cutlass Supreme II 5.7 V8 has an engine.
However, even this engine was eventually phased out after 1996 because it could not compete with the venerable Gen I 350. (The 5.7-liter LT5 V8 in the 1990–1995 Corvette ZR-1 was unrelated to the Gen I or Gen II 350.) I used to mock the 350 for years, but now I unexpectedly find myself in the position of owning one.
We hope that our explanation provided you with the answer to your question, “Oldsmobile 350 Rocket Engine Performance” If you have any additional questions, please leave a comment below, and we will be happy to assist you further. Check out this link for a review for 1972 Chrysler New Yorker. Thank you very much.