fits model: 427, 396, 454, 425, Corvette, Chevelle, Impala, Nova, Camaro. make: Chevy. year: 1967.

( Brand: Gm ), ( Manufacturer Part Number: 3904391 ), ( Part Type: Block Head ), ( Placement On Vehicle: Left )
The Corvette Block 3904391 is a highly sought-after component in the world of classic American muscle cars. This block is specifically designed for Chevrolet engines, with a focus on models like the 1967 Chevelle, Impala, Nova, Camaro, and others that utilized the powerful 427, 435, and 454 cubic inch engines.
This particular block, the 3904391, is a part of the big-block family, known for their size and power. This block is a testament to the engineering prowess of the era, with its robust construction and capability to handle high horsepower and torque outputs. The 3904391 block is a cast iron piece, which provides excellent heat dissipation and durability, ensuring long-term reliability.
The block features a four-bolt main bearing cap design, which provides improved strength and rigidity compared to three-bolt designs. This is essential for handling the high power output of the big-block engines. The block also includes a high-flow oiling system, ensuring that the engine's critical components remain cool and lubricated even under high load conditions.
For those looking to build a high-performance engine, this block is a great starting point. It can be matched with various heads, such as the popular 427 'big heads', to further enhance its power and torque capabilities. It is also compatible with a wide range of aftermarket components, allowing for extensive customization and tuning.
In summary, the Corvette Block 3904391 is a high-quality, robust, and versatile component for classic Chevrolet engines. Its robust construction, high power handling capabilities, and compatibility with a wide range of aftermarket components make it a popular choice among enthusiasts and builders alike. Whether you're restoring a classic car or building a high-performance hot rod, this block is an excellent foundation to start from.
Pros of buying a 1967 Chevrolet engine (Block 3904391, 427 cubic inches, Big Block):1. Power and Performance: The 427 Big Block engine is known for its raw power and impressive torque, making it an excellent choice for muscle cars like Chevelles, Camaros, Impalas, and Novas.
2. Customizability: This engine is highly customizable, allowing you to modify its performance to meet your specific needs and preferences.
3. Reliability: When properly maintained, the 427 Big Block engine is known for its durability and reliability, providing years of enjoyment.
4. Resale Value: Classic muscle cars with the 427 Big Block engine often have high resale values, making them a good investment for collectors and enthusiasts.
Cons of buying a 1967 Chevrolet engine (Block 3904391, 427 cubic inches, Big Block):1. Fuel Consumption: The 427 Big Block engine is notorious for its poor fuel efficiency, which can be a drawback for daily drivers or those concerned about environmental impact.
2. Maintenance Costs: This engine requires regular maintenance and upkeep to keep it running smoothly, which can be expensive.
3. Availability of Parts: While parts for the 427 Big Block engine are generally available, they can be pricey, and some may be hard to find.
4. Size and Weight: The 427 Big Block engine is large and heavy, which can impact the car's handling and fuel economy.
Conclusion:The 1967 Chevrolet 427 Big Block engine is a powerful and iconic choice for muscle car enthusiasts. While it comes with some drawbacks, such as high fuel consumption and maintenance costs, its performance and potential resale value make it an attractive option for many. If you're in the market for a classic muscle car engine and are willing to invest in its upkeep, the 427 Big Block engine could be an excellent choice for you.
Recommendation:If you're considering buying a 1967 Chevrolet engine with Block 3904391, it's essential to do your research to ensure you're getting a quality engine. Look for a reputable seller, and consider having the engine inspected by a professional before making a purchase. Additionally, factor in the cost of maintenance and potential modifications, as well as the impact on your car's overall performance and handling. Ultimately, the decision to buy a 1967 Chevrolet engine with Block 3904391 should be based on your personal preferences, budget, and desired use for the engine.
Needs nothing. They are only 4 weeks apart.
Completely reconditioned,new valves,multi angle valve job,new springs retainers and locks setup for the outbreak performer r. Perfect for that early dated 67 car.
They are in excellent condition. They have had some mild port matching work barrel intake. Shipping price is just an estimate for one head.
These rectangle port heads are extremely rare and ready to bolt on.
Also used for the 425. These are a fine offering for the pair of closed chambered 425. Google on APR at PDT.
Dates are a and l 7200 bill. 435 Teri power heads.