DOUGS HEADERS D3349-B Tube Header Gm Body Ls Engine Swap 694342555801 64-67 4.8-6.2L 7/8

( Brand: Dougs Headers ), ( Type: Exhaust Header ), ( Manufacturer Part Number: D3349-B ), ( Performance Part: Yes ), ( UPC: 694342555801 )

Review DOUGS HEADERS Long Tube Header 64-67 Gm Body 4.8-6.2l Ls Engine Swap 7/8 Inch Primary

Introducing Doug's Headers D3349-B Tube Header, an exceptional solution for those embarking on a 64-67 GM body 4.8-6.2L LS engine swap. This header system is meticulously designed to optimize performance and deliver a thrilling driving experience.

The D3349-B Tube Header is a high-performance aftermarket header designed specifically for the LS engine when swapping it into 64-67 GM bodies. The header is constructed from premium 304 stainless steel, ensuring durability and resistance to corrosion. This material choice not only guarantees longevity but also reduces the risk of exhaust gas contamination.

This header features a 7/8-inch primary tube diameter, which allows for a more efficient exhaust flow. The larger diameter tubes help to reduce backpressure, enabling the engine to breathe more freely and deliver improved power and torque. The header's design also ensures optimal exhaust scavenging for better engine efficiency and overall performance.

The Doug's Headers D3349-B Tube Header is a bolt-on solution, making installation a straightforward process. The header comes with all necessary gaskets and hardware for a hassle-free installation. Additionally, the header's design ensures a perfect fit with minimal modification required to the engine bay or exhaust system.

This header system is also designed to meet or exceed emissions regulations, making it a suitable choice for both street and off-road applications. The Doug's Headers D3349-B Tube Header is a must-have upgrade for any LS engine swap in a 64-67 GM body, delivering a significant performance boost and a more enjoyable driving experience.

Investing in the Doug's Headers D3349-B Tube Header ensures that you are not only enhancing the performance of your engine but also adding value to your vehicle. The header's durable construction, efficient design, and easy installation make it a smart choice for any LS engine swap in a 64-67 GM body.

Doug's Headers D3349-B tube headers are a popular choice for those performing an LS engine swap into 1964 to 1967 GM bodies. These headers offer several advantages and disadvantages that are essential to consider before making a purchase.

1. Improved Performance: Doug's Headers are known for their high-performance design. These headers provide better flow and increased horsepower compared to the stock exhaust system.

2. Enhanced Exhaust Sound: These headers produce a more aggressive and desirable exhaust note, which is a significant improvement over the stock exhaust system.

3. Fitment and Compatibility: Doug's Headers are specifically designed for the 64-67 GM bodies with 4.8-6.2L LS engines, ensuring a perfect fit.

4. Durability: These headers are constructed using high-quality materials, making them durable and resistant to corrosion.

1. Cost: Doug's Headers are more expensive compared to the stock exhaust system. This may be a significant factor for those on a tight budget.

2. Installation Complexity: Installing these headers requires professional expertise or extensive DIY experience. The process can be time-consuming and may involve additional modifications to the engine bay and exhaust system.

3. Heat Management: Since these headers are designed to improve performance, they can generate more heat. Proper heat management may be required to ensure the longevity of the engine and other components.

Doug's Headers D3349-B tube headers offer several advantages, such as improved performance, enhanced exhaust sound, perfect fitment, and durability. However, they also come with disadvantages, such as a higher cost, installation complexity, and heat management requirements.

If you are considering an LS engine swap into a 1964 to 1967 GM body and are looking for improved performance and exhaust sound, Doug's Headers D3349-B tube headers are an excellent choice. However, ensure you have a solid budget, are prepared for the installation complexity, and have a plan for managing the increased heat.

part # d3349 prices

• $790.78-$1030.50

specifications maniheader:

• brand: Dougs Headers
• type: Exhaust Header
• manufacturer part number: D3349-B
• performance part: Yes
• upc: 694342555801

seller maniheader:

• rating: 99.7%
• # reviews: 112543

offer maniheader:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: October 26, 2025
• quantity: 1

payments maniheader:

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

general maniheader:

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

returns maniheader:

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

shipping maniheader:

• cost: $0.00
• type: Fixed
• class: Standard
• transit: 3-6 Days
• service: Standard

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