MOPAR 8955007 Tube Headers Big Block Body 383

( Brand: Mopar ), ( Mounting Style: Bolt-on ), ( Type: Exhaust Header ), ( Manufacturer Part Number: 8955007 ), ( Material: Steel ), ( Fuel Type: Gasoline )

Review MOPAR Long Tube Headers 383 Big Block Dodge Plymouth B body fits 400 440 1966–1974

Mopar 8955007 tube headers are a superior upgrade for 1966 to 1974 Dodge and Plymouth B-Body vehicles equipped with 383, 400, or 440 big block engines. These headers are a direct replacement for the factory exhaust manifolds, providing numerous benefits for performance enthusiasts.

The Mopar 8955007 tube headers are designed with 1.650-inch primary tubes and 1.625-inch collector tubes, ensuring a proper fit and optimal exhaust flow. The 5/16-inch thick flanges are engineered to resist warping or cracking, providing a secure connection between the headers and the engine.

One of the primary advantages of these tube headers is their ability to improve engine performance. By reducing exhaust backpressure, these headers help to increase engine power and torque. They also provide better scavenging, which ensures that spent exhaust gases are quickly expelled from the engine, allowing for better combustion and improved fuel efficiency.

The Mopar 8955007 tube headers are manufactured from high-quality 304 stainless steel, which offers excellent resistance to corrosion and heat. The use of stainless steel ensures that these headers will last for years, providing a durable solution for those seeking to enhance the performance of their big block Dodge or Plymouth B-Body.

Another advantage of these tube headers is their design, which allows for a more efficient exhaust flow. The headers feature a reverse-flow design, which means that the exhaust gases travel in the opposite direction of the primary tubes. This design helps to reduce exhaust gas turbulence, which can lead to improved engine performance and better overall driving experience.

Installing the Mopar 8955007 tube headers is a relatively straightforward process, making them an accessible upgrade for many performance enthusiasts. The headers come with gaskets and hardware, making it easy to install them in place of the factory manifolds. However, it's recommended that the installation is performed by a professional to ensure that the headers are installed correctly and securely.

In conclusion, the Mopar 8955007 tube headers are a high-performance upgrade for 1966 to 1974 Dodge and Plymouth B-Body vehicles equipped with big block 383, 400, or 440 engines. These headers offer numerous benefits, including improved engine performance, better scavenging, and increased durability, all while providing a more efficient exhaust flow. Installed by a professional, these headers are a must-have for any serious performance enthusiast looking to take their big block Mopar to the next level.

Mopar 8955007 tube headers, designed for 1966-1974 Dodge and Plymouth B-body vehicles with 383, 400, and 440 big block engines, are a popular choice for enthusiasts looking to improve engine performance. Here are some pros and cons of buying these headers:

1. Increased Horsepower: Tube headers allow for better exhaust flow, which results in increased horsepower and torque.

2. Improved Engine Response: The improved exhaust flow also results in quicker throttle response, making the engine feel more responsive.

3. Better Fuel Economy: By improving exhaust flow and reducing back pressure, tube headers can help improve fuel economy, although this may not be a significant factor for high-performance applications.

4. Enhanced Engine Sound: Tube headers can help produce a more pleasing exhaust note, which is a desirable feature for many enthusiasts.

5. Durability: Mopar is a reputable brand, and these headers are made from high-quality materials, ensuring durability and reliability.

1. Complex Installation: Installing tube headers requires some expertise and specialized tools, which can make the installation process more complex and time-consuming than other performance upgrades.

2. Cost: Tube headers can be more expensive than other performance upgrades, such as air intakes or exhaust systems.

3. Risk of Damage: The exposed headers can be more susceptible to damage from debris or contact with other components, requiring more frequent maintenance and inspections.

4. Compatibility: It is essential to ensure that the headers are compatible with other modifications or upgrades, as well as the specific engine and vehicle model.

Mopar 8955007 tube headers offer several benefits, including increased horsepower, improved engine response, better fuel economy, enhanced engine sound, and durability. However, they also come with some drawbacks, such as complex installation, cost, risk of damage, and compatibility issues.

If you are an experienced enthusiast looking for a significant performance upgrade and are willing to invest the time and money required for installation, then tube headers may be an excellent choice for you. However, if you are a beginner or are looking for a more straightforward performance upgrade, you may want to consider other options first.

Before purchasing Mopar 8955007 tube headers, it is recommended that you carefully consider your specific application and vehicle setup. Make sure that the headers are compatible with any other modifications or upgrades you plan to make, and that you have the necessary expertise and tools for installation. Additionally, be prepared for the added cost and potential complexity of the installation process. If you are still unsure, it may be a good idea to consult with a professional mechanic or performance specialist for advice.

part # 8955007 prices

• $150.00-$379.99

specifications maniheader:

• for models: 400, 440
• for makes: Dodge, Plymouth, Mopar
• for years: 1966-1974
• brand: Mopar
• mounting style: Bolt-on
• type: Exhaust Header
• manufacturer part number: 8955007
• material: Steel
• fuel type: Gasoline

seller maniheader:

• rating: 99.6%
• # reviews: 9224

payments maniheader:

• other
• credit card: Discover
• wallet: Google-pay

shipping maniheader:

• carrier: FedEx
• cost: $49.52
• service: FedEx Ground Economy
• type: Calculated
• transit: 3-9 Days
• class: Economy

offer maniheader:

• started: January 12, 2026
• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home

returns maniheader:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: Used

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