HEDMAN HEDDERS 68310 Tube Headers Gm Body FT78-87 283-400 1978-198

( Brand: Hedman Hedders ), ( Part Type: Tube Header ), ( Manufacturer Warranty: 1 Year ), ( Manufacturer Part Number: 68310 ), ( Ls Swap: No ), ( Reducer Outlet Size: 2-1/2 In. ), ( Gasket Or Seal Included: Yes ), ( Collector Attachment: 3 In. ), ( Flange Thickness: 0.3125 In. ), ( Material: Mild Steel ), ( Tube Size: 1-1/2 In. ), ( Tube Design: Standard ), ( Engine: Chevy Sb 283-400 ), ( Replacement Head Flange Gasket: 27500 ), ( Finish: Uncoated ), ( Cylinder Head: Stock Profile Heads ), ( Cylinder Head Port Shape: Round ), ( Primary Tube Gauge: 16g ), ( Quantity: Sold As A Pair. ), ( Engine Notes: Chevrolet Engines Only )

Review HEDMAN HEDDERS Long tube Headers Gm G body 1978-198

The Hedman Hedders 68310 long-tube headers are a high-performance upgrade for the GM G-body cars with the FT78-87 engine, specifically model years 1978 to 1987, and capable of handling power outputs from 283 to 400 horsepower. These headers are designed to replace the stock exhaust manifolds, providing significant improvements in both power and performance.

Each header is constructed using premium-grade 304 stainless steel, known for its strength and durability. The long-tube design ensures proper exhaust scavenging, allowing for a more efficient flow of exhaust gases and reducing backpressure within the engine. This results in increased power output and improved engine response.

The Hedman Hedders 68310 headers feature a 1 5/8-inch primary tube diameter, which is larger than the stock manifolds. This larger diameter allows for a freer-flowing exhaust system, enabling the engine to breathe more efficiently and produce more power. The primary tubes are also ported for a better fitment and optimal exhaust gas flow.

These headers come with 3/8-inch thick flanges, ensuring a strong connection between the headers and the engine. The flanges are also stud welded to prevent any possibility of the studs coming loose over time. The headers are designed to work with the factory exhaust system, although a high-performance exhaust system is recommended for optimal results.

The Hedman Hedders 68310 long-tube headers are easy to install, with a bolt-on design that requires no welding or cutting. They are also CARB-legal, making them a suitable choice for those in California or other states with strict emissions regulations.

In summary, the Hedman Hedders 68310 long-tube headers are a top-tier performance upgrade for the FT78-87 GM G-body cars. They offer significant power gains, improved engine response, and are constructed using high-quality materials for durability. These headers are easy to install and are CARB-legal, making them a popular choice among automotive enthusiasts looking to maximize the potential of their engines.

Hedman Hedders 68310 long-tube headers are a popular upgrade for the 283-400 Cubic Inch GM G-body engines found in vehicles like Oldsmobile Cutlass and Buick Regal from the 1978-1987 model years. Long-tube headers offer several advantages for performance enthusiasts, but like any modification, they come with their pros and cons.

1. Improved Performance: Long-tube headers provide better flow characteristics than stock headers, which results in increased horsepower and torque gains. This is due to the longer tubes that allow for a more efficient exhaust gas flow.

2. Better Fuel Economy: The improved exhaust flow can lead to better fuel economy, as the engine doesn't have to work as hard to expel exhaust gases.

3. Enhanced Engine Sound: Long-tube headers produce a more pleasing exhaust note due to the improved exhaust flow and design.

4. Increased Durability: Long-tube headers are typically made of high-quality materials like stainless steel, which makes them more durable than stock headers.

5. Improved Cooling: The design of long-tube headers allows for better exhaust gas cooling, which can help prevent issues like exhaust valve melting and pre-ignition.

1. Cost: Long-tube headers are typically more expensive than stock headers, and the installation process can also add to the overall cost.

2. Complexity of Installation: Installing long-tube headers requires more time and expertise than installing stock headers. This can include modifying the exhaust system, engine components, and other parts to accommodate the new headers.

3. Potential for Increased Noise: While some people enjoy the sound of long-tube headers, they can also produce more noise than stock headers. This can be mitigated with the use of exhaust tips or mufflers, but it's still something to consider.

4. Potential for Oxygen Sensor Compatibility Issues: Some long-tube headers may not be compatible with the factory oxygen sensors, which could require additional modifications or the use of aftermarket sensors.

Long-tube headers, such as Hedman Hedders 68310, offer several advantages for performance enthusiasts looking to upgrade their GM G-body engines. However, they also come with some drawbacks, including cost, complexity of installation, potential for increased noise, and oxygen sensor compatibility issues. Ultimately, the decision to purchase long-tube headers depends on your individual goals, budget, and level of expertise. If you're looking for a significant horsepower and torque gain, improved engine sound, and increased durability, then long-tube headers may be worth the investment. However, if you're on a tight budget or have limited experience with engine modifications, then stock headers may be a better option for you.

If you've weighed the pros and cons and have determined that long-tube headers are the right choice for your GM G-body, then it's important to do your research and choose a reputable header manufacturer like Hedman Hedders. Make sure to consider the compatibility of the headers with your specific engine and exhaust system, and be prepared for the additional cost and complexity of the installation process. Additionally, be sure to consult with a professional mechanic or experienced enthusiast to ensure a successful installation.

part # 68310 prices

• $266.00-$362.73

specifications maniheader:

• brand: Hedman Hedders
• part type: Tube Header
• manufacturer warranty: 1 Year
• manufacturer part number: 68310
• ls swap: No
• reducer outlet size: 2-1/2 In.
• gasket or seal included: Yes
• collector attachment: 3 In.
• flange thickness: 0.3125 In.
• material: Mild Steel
• tube size: 1-1/2 In.
• tube design: Standard
• engine: Chevy Sb 283-400
• replacement head flange gasket: 27500
• finish: Uncoated
• cylinder head: Stock Profile Heads
• cylinder head port shape: Round
• primary tube gauge: 16g
• quantity: Sold As A Pair.
• engine notes: Chevrolet Engines Only

offer maniheader:

• quantity: 2
• started: February 26, 2025
• options: Ship-to-home
• sold: 0
• availability: In Stock

seller maniheader:

• # reviews: 3321
• rating: 99.4%

payments maniheader:

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

returns maniheader:

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

general maniheader:

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

shipping maniheader:

• type: Fixed
• carrier: UPS
• class: Standard
• transit: 3-7 Days
• cost: $0.00
• service: UPS Ground

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