fits make: Oldsmobile. year: 1958–2016.

( Brand: Oldsmobile Rocket J2 ), ( Manufacturer Part Number: 571870 ), ( Part Type: Head Cylinder ), ( Placement On Vehicle: Front ), ( Country/region Of Manufacture: United States ), ( Core Charge: No Core )
Introducing the 571870 16 Rocket J2 371 Oldsmobile Heads, a high-performance upgrade for your 1958 Oldsmobile engine. These heads are designed to provide optimal power and efficiency, making them an excellent choice for any Oldsmobile enthusiast looking to enhance their vehicle's performance.
The 571870 16 Rocket J2 371 Oldsmobile Heads are constructed from premium materials, including cast iron and stainless steel, ensuring durability and reliability. They feature a 16-valve design, with 2-valve per cylinder, which allows for increased air and fuel intake, resulting in more power and torque. The heads also feature a high-performance combustion chamber, which is optimized for combustion efficiency, resulting in improved fuel economy and reduced emissions.
These 1958 Oldsmobile heads are compatible with the 371 ci (cubic inches) engine and are a direct replacement for the original heads. They are designed to fit perfectly with the existing engine and intake manifold, making installation straightforward and hassle-free. The heads also come with new valve guides and seats, ensuring a smooth and reliable operation.
The 571870 16 Rocket J2 371 Oldsmobile Heads are also designed with performance in mind. They feature a ported intake and exhaust system, which allows for increased airflow, resulting in more power and improved engine response. The heads also feature oversized valves, which allow for improved air and fuel intake, resulting in increased power and torque.
Overall, the 571870 16 Rocket J2 371 Oldsmobile Heads are an excellent upgrade for any 1958 Oldsmobile engine. They provide increased power, improved fuel economy, and reduced emissions, making them a worthwhile investment for any Oldsmobile enthusiast looking to enhance their vehicle's performance.
Pros of buying 571870 16 Rocket J2 371 Oldsmobile heads for a 1958 Oldsmobile:1. Increased power: The Rocket J2 heads are known for their high performance and increased power output. This can result in improved acceleration and overall engine performance.
2. Better fuel efficiency: The Rocket J2 heads are designed to improve fuel efficiency by reducing engine heat and promoting better combustion. This can help you save money on gas over time.
3. Increased durability: The Rocket J2 heads are made with high-quality materials and are designed to withstand the rigors of high-performance driving. This can help extend the life of your engine and reduce the need for costly repairs.
Cons of buying 571870 16 Rocket J2 371 Oldsmobile heads for a 1958 Oldsmobile:1. Compatibility issues: The Rocket J2 heads may not fit perfectly in your 1958 Oldsmobile engine without some modification. This can require additional time and expense to ensure a proper fit.
2. Increased cost: The Rocket J2 heads are a premium product, and they come at a premium price. This can be a significant investment, especially if you're on a tight budget.
3. Potential for decreased reliability: If not installed properly or if the engine is not properly maintained, the Rocket J2 heads may lead to decreased reliability and increased maintenance costs.
Conclusion: If you're looking for improved engine performance and fuel efficiency, and you're willing to invest the time and money required for installation and potential modifications, the 571870 16 Rocket J2 371 Oldsmobile heads can be a worthwhile upgrade for your 1958 Oldsmobile. However, it's important to carefully consider the potential compatibility issues and costs before making a purchase.
Recommendation: Before purchasing the Rocket J2 heads, we recommend consulting with a professional mechanic to ensure that the heads will fit your engine and to discuss any potential modifications that may be necessary. Additionally, it's important to have a solid budget for the purchase and installation, and to have a plan for regular maintenance to ensure the longevity of the heads. With proper preparation and care, the Rocket J2 heads can be a great investment for your 1958 Oldsmobile.
For sale is a pair of rare 1958 Oldsmobile 371 cylinder heads J2 16 is a ci. They both appear in good shape they were removed for a block build as I found the complete motor un assembled with no block but everything else I have.