JEGS 30055 Tube Headers Block 889944038054 265-400

( Brand: Jegs ), ( Part Type: Tube Header Block ), ( Manufacturer Part Number: 30055 ), ( UPC: 889944038054 )

Review JEGS Painted Long Tube Headers Small Block Chevy

Introducing the 30055 tube headers for the Chevy small-block engines with displacements ranging from 265 to 400 cubic inches. These tube headers are an excellent upgrade for performance enthusiasts seeking to enhance the power and efficiency of their engines.

Crafted from high-quality 321 stainless steel, these tube headers are built to last. The stainless steel material offers superior resistance to corrosion, ensuring that the headers remain in excellent condition even in the harshest environments.

The 30055 tube headers feature a 1.650-inch primary tube diameter and 1.500-inch collector diameter. The primary tubes are designed to be short and straight to minimize exhaust flow restriction, allowing gases to exit the engine more efficiently. The collector diameter is optimized for maximum flow and scavenging, creating a more efficient exhaust system.

These tube headers also come with 5/8-inch NPT threaded ports for easy exhaust system integration. The ports are located at the collector inlet to facilitate a seamless connection to the exhaust system.

The 30055 tube headers are designed to bolt directly onto the factory exhaust manifold studs, making for a straightforward installation process. The headers come with new gaskets, making it a complete kit for replacing the old exhaust manifold.

The 30055 tube headers are a great investment for those looking to boost the power output of their Chevy small-block engine. They are known to provide excellent gains in horsepower and torque, making them a popular choice among performance enthusiasts.

In summary, the 30055 tube headers for Chevy small-block engines with displacements ranging from 265 to 400 cubic inches are a high-quality, durable, and efficient upgrade for your engine. Made from 321 stainless steel, they offer superior resistance to corrosion and provide excellent gains in horsepower and torque. The primary tubes are designed for minimal flow restriction, while the collector diameter is optimized for maximum flow and scavenging. The headers come with 5/8-inch NPT threaded ports and new gaskets for a straightforward installation process.

Buying 30055 tube headers for a Chevy 265-400 block engine can offer several benefits, but it's essential to consider the potential drawbacks as well. Below are some pros and cons to help you make an informed decision.

1. Improved Performance: Tube headers enhance the exhaust flow, allowing for better scavenging of spent gases and improved engine breathing. This results in increased horsepower and torque.

2. Enhanced Sound: Tube headers produce a more aggressive exhaust note, which can be desirable for some enthusiasts.

3. Durability: 30055 tube headers are made of high-quality materials, such as stainless steel, ensuring long-lasting performance.

1. Cost: Tube headers can be quite expensive, especially high-performance options. The cost of the headers themselves, as well as any necessary modifications or additional parts, can add up.

2. Complexity: Installing tube headers requires significant mechanical knowledge and experience. It may be necessary to modify the engine and exhaust system to accommodate the headers, which can be a time-consuming and labor-intensive process.

3. Potential for Leaks: The seals between the headers and the engine or exhaust system can potentially leak, which can lead to a loss of performance and potentially damage to other components.

30055 tube headers for a Chevy 265-400 block engine offer several benefits, including improved performance and enhanced sound. However, they also come with potential drawbacks, such as cost, complexity, and the risk of leaks. Weighing these factors against your specific needs and budget will help you determine if investing in tube headers is the right choice for you.

If you are an experienced mechanic or enthusiast with a significant budget and a desire for increased horsepower and torque, tube headers could be a worthwhile investment. However, for those with limited mechanical knowledge or a smaller budget, alternative performance upgrades or modifications may be more suitable. It's essential to carefully consider the potential benefits and drawbacks before making a decision.

part # 30055 prices

• $156.99-$186.99

specifications maniheader:

• for makes: Chevy
• brand: Jegs
• part type: Tube Header Block
• manufacturer part number: 30055
• upc: 889944038054

returns maniheader:

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

offer maniheader:

• started: October 2, 2025
• availability: In Stock
• quantity: 10
• options: Ship-to-home
• sold: 0

shipping maniheader:

• class: Standard
• cost: $15.99
• service: Standard
• type: Fixed
• transit: 2-5 Days

seller maniheader:

• # reviews: 600163
• rating: 98.2%

payments maniheader:

• other
• wallet: Paypal
• credit card: Visa

general maniheader:

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

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