Swapping an LS engine into a Chevy C10 has become a popular upgrade for enthusiasts seeking modern performance in a classic truck. One of the most critical components for this conversion is the headers. Choosing the right headers directly impacts engine efficiency, power output, and overall performance.
Proper headers ensure smooth exhaust flow and help the LS engine reach its full potential. Selecting high-quality exhaust headers is essential for both street performance and long-term durability.
What Are LS Swap Headers and Why They Matter
LS swap headers are custom exhaust manifolds designed to fit LS engines in vehicles that were not originally designed for them. They come in two main types: long tube and shorty headers. Long tube headers offer improved high-RPM performance, while shorty headers are easier to install with minimal clearance issues.

High-quality headers improve exhaust flow, which enhances both horsepower and torque. They are typically made from durable materials like T-304 stainless steel and feature precision CNC machined flanges for a perfect fit. Proper headers also account for vehicle-specific space constraints, such as crossmembers and steering shafts, ensuring installation is seamless and reliable.
Key Features to Look for in C10 LS Swap Headers
When selecting the best C10 LS swap headers, several key features determine performance and compatibility.
- Material Quality: Look for T-304 stainless steel, which offers excellent corrosion resistance and high-temperature durability.
- Pipe and Collector Design: The diameter of the primary tubes and the collector affects exhaust flow and overall power gains.
- Flange and Welding Quality: CNC machined flanges with TIG or MIG welded construction ensure a tight fit and long-lasting durability.
- Fitment Compatibility: Headers should accommodate a wide range of LS engines and C10 model years. Correct spacing for engine mounts, crossmembers, and steering components is crucial for a smooth installation.
- Performance Metrics: High-quality headers typically improve horsepower and torque while also optimizing exhaust sound.
Benefits of High-Quality Long Tube Headers for C10 LS Swaps
Long tube headers are a cornerstone upgrade for any C10 LS swap. They do more than just replace stock manifolds—they optimize exhaust flow, improve engine performance, and ensure long-term reliability. Choosing the best C10 LS swap headers is essential to fully unlock the potential of your LS engine. Key benefits include:

Improved Horsepower and Torque
High-quality long tube headers are engineered to minimize exhaust backpressure. This allows exhaust gases to exit the engine more efficiently, resulting in noticeable horsepower and torque gains. LS engines paired with premium long tube headers can achieve up to 10-15 HP and 10-15 lb-ft torque improvements at high RPM ranges, maximizing acceleration and overall driving performance.
Durable, Corrosion-Resistant Construction
The best headers are made from T-304 stainless steel, which resists rust and maintains structural integrity under extreme heat. CNC machined flanges ensure a precise fit, while TIG/MIG welded construction enhances strength and prevents leaks. This combination of quality materials and craftsmanship ensures your headers will last for years, even under heavy-duty use.
Enhanced Exhaust Sound
Long tube headers alter the exhaust pulse and resonance, producing a deeper, more aggressive tone. Unlike stock manifolds, high-quality headers reduce unwanted cabin drone while delivering a powerful exhaust note that enhances the classic C10 driving experience.
Optimized Installation and Fitment
Top-tier headers are designed with LS swaps in mind. They provide proper clearance around crossmembers, steering shafts, and transmission components. This ensures a smooth installation and avoids common issues such as interference with engine mounts or the front crossmember. For 1960-1966 C10 trucks, slider engine mounts can help clear tight spaces for long tube header installation.
Improved Engine Efficiency and Throttle Response
By facilitating smoother exhaust flow, long tube headers reduce engine pumping losses and improve scavenging. This enhances throttle response, smooths power delivery, and can contribute to slightly better fuel efficiency in high-performance applications.
Long-Term Value and Reliability
Investing in high-quality headers is a long-term decision. Premium headers maintain performance and appearance over time, resist corrosion, and support additional performance upgrades, such as custom exhaust systems or aftermarket tuning. They help preserve the overall value of your C10 while delivering consistent power improvements.
Flashark C10 LS swap Long Tube Headers
For enthusiasts seeking the best C10 LS swap headers, Flashark Long Tube Headers are an exceptional choice. They are engineered for Chevy C10 trucks from 1960 to 1988 and accommodate a wide range of LS engines, including 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L variants.

Product Highlights:
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Material & Finish: T-304 stainless steel with mirror polish for durability and style.
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Design: 8-2 tube configuration with CNC machined flanges and TIG/MIG welded construction.
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Fitment: Perfect for LS1, LS2, LS3, and LS6 engines; 1960-1966 trucks require slider engine mounts to clear the front crossmember.
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Performance: Provides approximately 10-15 HP and 10-15 lb-ft torque gains at 6000 RPM when paired with LS1/LS3 engines.
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Specifications:
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Primaries Diameter: 1-7/8 in (48mm)
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Collector Diameter: 3 in (76mm)
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Head Flange Thickness: 3/8 in (9.5mm)
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Pipe Thickness: 16-gauge (1.5mm)
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Includes O2 sensor locations for modern emissions compatibility
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Flashark headers combine performance, precision fitment, and aesthetic appeal, making them ideal for C10 LS swaps.
Installation Considerations for C10 LS Swap Headers
Proper installation is key to maximizing the benefits of high-quality headers.
Check engine mounts and crossmember clearance to avoid interference with long tube headers. The choice of transmission affects collector placement, and adjustments may be necessary for 4L60E or 4L80E setups.
O2 sensor placement and exhaust routing must be planned carefully. Ensuring proper clearance prevents heat damage and maintains optimal exhaust flow. Following these steps ensures a smooth installation and long-lasting performance.
Conclusion
Selecting the best C10 LS swap headers is essential for maximizing the performance of your Chevy C10 LS conversion. High-quality long tube headers, like the Flashark Long Tube Headers, offer superior exhaust flow, horsepower gains, and reliable fitment for 1960-1988 C10 trucks.
Investing in premium headers not only boosts performance but also ensures long-term durability and an enhanced driving experience. For anyone performing an LS swap on a C10, Flashark headers provide the perfect combination of power, quality, and style.

















