fits model: 425. make: Oldsmobile. year: 1965–1967.

( Manufacturer Part Number: 389244 ), ( Part Type: Engine ), ( Fuel Type: Gasoline )
The Oldsmobile 389 Rocket V8 engine, specifically the core part number 389244, was a powerful and iconic automotive powerplant produced by Oldsmobile during the 1960s. This engine was used in various Oldsmobile models from 1965 to 1967, including the Cutlass, Starfire, and the famous Oldsmobile 4-4-2.
The 389 Rocket V8 engine was known for its impressive performance characteristics. It displaced 389 cubic inches (6.3 liters) and was fed by a two-barrel carburetor, delivering a rated horsepower output of 310 hp at 4600 RPM and peak torque of 410 lb-ft at 3200 RPM. Such power output placed this engine among the most potent offerings of the time.
The construction of the Oldsmobile 389 Rocket V8 engine was robust and advanced for its period. It employed a cast iron block and a three-bolt main bearing caps for added durability. The engine also featured aluminum cylinder heads with manual valve adjustment and a hydraulic lifter system. The combustion process was aided by a high-compression (10.25:1) piston design and a roller camshaft with a duration of 240 degrees at 0.050 inches, which contributed to the engine's lively response.
The 389244 core engine is compatible with various Oldsmobile models produced between the years 1965 and 1967 and is an excellent choice for enthusiasts seeking to restore, upgrade, or build a high-performance Oldsmobile. This engine core comes prepared for installation with essential components including the crankshaft, cylinder blocks, and cylinder heads, providing a cost-effective alternative to a complete factory-remanufactured engine.
It is essential to note that a used engine core typically comes as-is, with some possible signs of wear, and it will require further preparation before installation. Fundamental services such as cleaning, inspection, and rebuilding may be necessary, depending on your intended usage and the desired performance characteristics. For this reason, it is crucial to secure the services of an experienced engine builder or rebuilding facility to ensure the core engine meets your demands for reliability and durability.
Oldsmobile 389 Rocket V8 engines, specifically the 1965-1967 425 cubic inch version (designated as engine code 389-244), are popular among automobile enthusiasts for their power and iconic status in American muscle car history. Here are some pros and cons to help you consider whether buying this engine is a good decision:
Pros:1. Horsepower: The 425 Rocket V8 engine produced between 325 and 345 horsepower, depending on the specific model and configuration. This level of power was impressive for its time and still provides a thrilling driving experience.
2. Rich heritage: Oldsmobile Rocket engines, particularly the 389 cubic inch variant, have a storied history and are highly sought after by collectors and classic car enthusiasts.
3. Affordability: Compared to many modern high-performance engines or newer classic car engines, used 389 Rocket V8 engines are relatively affordable, making them an attractive option for those on a budget.
Cons:1. Complexity and maintenance: Older engines like the 389 Rocket V8 require more upkeep and maintenance than modern engines. Parts may need to be rebuilt or replaced, and extensive research and understanding are necessary to maintain this engine's performance and longevity.
2. Fuel efficiency: These engines consume more fuel than modern engines, making them less cost-effective in the long run, especially when factoring in increased fuel prices and ongoing environmental concerns.
3. Emissions and environmental concerns: Oldsmobile 389 Rocket V8 engines don't meet modern emissions standards, which means modifications or exempted vehicles are necessary to operate them legally.
Conclusion:Buying an Oldsmobile 389-244 425 cubic inch Rocket V8 engine can offer a powerful, thrilling driving experience steeped in automotive history. However, it comes with the required commitment to ongoing maintenance and potential emissions and environmental challenges. Consider both the pros and cons carefully before making a decision, and remember that, ultimately, the enjoyment these engines provide often outweighs the challenges for dedicated enthusiasts.
If you're interested in purchasing this engine, carefully research potential suppliers, inspect the engine for any wear or damage, and budget for upfront and ongoing maintenance costs. With a solid plan and the appropriate resources, an Oldsmobile 389 Rocket V8 engine can serve as the heart of an exceptional classic car build.
Oldsmobile 425 Complete Engine Core Casting Number: 389244 Years: 1965-1967, This is a fully complete rebuild able engine core. Buyer pays shipping.