fits model: 427, 396. make: Chevy. year: 1969.

( Manufacturer Part Number: 3919840 ), ( Part Type: Block Head )
This is a high-quality, big rectangle single port engine block designed specifically for 1969 Chevrolet 396 427 engines. With the model number 3919840, this B-19-9 block is a must-have for any classic car enthusiast or restoration project.
The block is made from top-grade material, ensuring durability and strength. It features a square-bore design, which provides excellent cylinder wall strength and improved engine performance. The single port configuration allows for easier intake and exhaust flow, resulting in improved power and fuel efficiency.
The block is equipped with 840 heads, which are known for their robust construction and excellent sealing properties. These heads are designed to work seamlessly with the 396 427 engine, providing optimal combustion and power output.
The block is also compatible with B-19-9 intake and exhaust systems, making it easy to install and integrate into your classic Chevrolet. Whether you're building a high-performance engine or restoring a classic car, this 3919840 block is an excellent choice.
In conclusion, this big rectangle single port 427 Chevy 396 19-9 block is a high-quality, durable engine component that is designed to deliver optimal performance and reliability. With its robust construction, excellent sealing properties, and compatibility with B-19-9 intake and exhaust systems, this block is an excellent choice for any classic Chevrolet restoration or high-performance engine build.
Pros of buying a 1969 Chevy 396 840 Big Rectangle Single Port engine:1. Powerful: The 396 cubic inch engine is known for its power and performance. It can produce up to 425 horsepower, making it a great choice for muscle cars and hot rods.
2. Reliability: The engine uses a cast iron block, which is known for its durability and reliability. This can make it a good long-term investment.
3. Availability: Parts for this engine are relatively easy to find, which can make maintenance and repairs more affordable and convenient.
Cons of buying a 1969 Chevy 396 840 Big Rectangle Single Port engine:1. Fuel efficiency: The engine is not known for its fuel efficiency, which can result in higher fuel costs over time.
2. Emissions: Older engines, such as this one, may not meet modern emissions standards, which can make it difficult to use in certain areas.
3. Maintenance: Older engines may require more frequent maintenance and repairs, which can add up over time.
Conclusion: The 1969 Chevy 396 840 Big Rectangle Single Port engine is a powerful and reliable option for those looking for a classic muscle car engine. However, it may not be the most fuel-efficient or emissions-friendly option, and it may require more maintenance and repairs than newer engines. Ultimately, whether or not this engine is the right choice for you will depend on your specific needs and preferences.
Recommendation: If you are looking for a powerful and reliable engine for a classic muscle car, the 1969 Chevy 396 840 Big Rectangle Single Port engine is a solid choice. However, be prepared for higher fuel costs and potential maintenance and repair expenses. It may be worth considering newer engines with better fuel efficiency and emissions standards if these are important factors for you.
Just clean it up and it's ready to go. Complete valve job and resurface. Has new valves, guides, guide plates, rocker arm studs and springs. Here's a real nice big block Chevy rectangle port cylinder head.
Engine was parted out, have other pieces if interested. No porting or grinding done anywhere. No stripped threads or Helicon's either. Was run in the car a short time and ended up with a rod knock.