DOUGS HEADERS D741-SS Header 694342557737 3/4 304 65-74 400-455

( Brand: Dougs Headers ), ( Part Type: Header ), ( UPC: 694342557737 ), ( Manufacturer Part Number: D741-SS )

Review DOUGS HEADERS 3/4 Inch 304 Long Header 65-74 Oldsmobile fits SS

Introducing Doug's Headers D741-SS 3/4 inch 304 Stainless Steel Header for 1965-1974 Oldsmobile 400-455 engines. This header is designed to deliver superior performance and durability for your classic Oldsmobile.

The D741-SS header is crafted from premium 304 Stainless Steel, known for its strength, resistance to corrosion, and ability to withstand extreme temperatures. It features 3/4 inch primaries and collectors, ensuring a smooth and efficient exhaust flow. The design includes a 1 5/8 inch OD collector, which is larger than the stock collector, allowing for a freer exhaust flow and increased engine performance.

Each header comes with 5/16 inch thick flanges on the engine side, providing a secure and reliable fit. The exhaust side of the header features 180-degree outlet bends, which provide a clearance for the factory exhaust system. The bends are also roll-formed for added strength and durability.

The D741-SS header is designed to work with the factory exhaust system, making it a direct replacement for the stock header. It is also CARB-legal, making it an excellent choice for those in California or other areas with strict emissions regulations.

Installing the Doug's Headers D741-SS header is a straightforward process. It comes with all the necessary hardware, including new gaskets and bolts, making it easy for the average home mechanic to install. The header also comes with detailed instructions to ensure a successful installation.

By upgrading to the Doug's Headers D741-SS header, you'll experience improved engine performance, increased horsepower, and a more enjoyable driving experience. With its superior materials, design, and ease of installation, this header is a must-have for any Oldsmobile 400-455 enthusiast looking to take their classic car to the next level.

Pros and Cons of Buying Doug's Headers D741-SS for 1965-1974 Oldsmobile 400-455

a. Improved Performance: Doug's headers are known for their high-performance design. They allow for better exhaust gas flow, resulting in increased horsepower and torque.

b. Enhanced Sound: The headers produce an impressive exhaust note, adding to the overall driving experience.

c. Durability: Doug's headers are made of stainless steel, ensuring their longevity and resistance to corrosion.

d. Compatibility: These headers are specifically designed for 1965-1974 Oldsmobile 400-455 engines, ensuring a perfect fit.

a. Cost: Doug's headers are typically more expensive than stock headers or aftermarket alternatives. This may be a deterrent for some buyers.

b. Installation Complexity: Installing headers can be a challenging process, especially for those without experience. It may require professional installation or extensive research and time.

Doug's headers D741-SS for 1965-1974 Oldsmobile 400-455 engines offer several advantages, including improved performance, enhanced sound, durability, and compatibility. However, they also come with some drawbacks, such as a higher cost and installation complexity. Ultimately, the decision to purchase these headers depends on your budget, installation capabilities, and desired performance gains.

If you're looking for significant performance improvements and are willing to invest the time and money, Doug's headers D741-SS are an excellent choice. However, if you're on a tight budget or have limited installation experience, you may want to consider less expensive alternatives or seek professional advice before making a purchase.

part # d741 prices

• $1315.27-$1656.13

specifications maniheader:

• for models: Ss
• for makes: Oldsmobile
• brand: Dougs Headers
• part type: Header
• upc: 694342557737
• manufacturer part number: D741-SS

general maniheader:

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

shipping maniheader:

• type: Fixed
• cost: $0.00
• service: Expedited
• transit: 3-8 Days
• class: Expedited

offer maniheader:

• started: August 26, 2025
• sold: 0
• quantity: 5
• options: Ship-to-home
• availability: In Stock

seller maniheader:

• rating: 98.3%
• # reviews: 157979

payments maniheader:

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

returns maniheader:

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

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