When swapping an LS engine into a vehicle, selecting the right external fuel pump is vital for optimal performance. The fuel pump plays a key role in delivering the necessary fuel flow and pressure to support the engine’s power demands. Understanding the available options can help ensure a successful engine swap project.
This post will provide insights into various external fuel pump options suited for LS engine swaps. By examining features such as flow rates, pressure ratings, and compatibility with different fuel types, readers will gain valuable knowledge to make informed decisions. This information is essential for achieving reliable engine performance and maintaining the longevity of the vehicle.
List of Top 10 External fuel pump for ls engine swap
| Image | Title | Best For | Link |
|---|---|---|---|
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Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator 58 Psi Ls Swap Fuel Pum… | The GSL392 Inline Fuel Pump and 58 PSI Fuel Filter Regulator is ideal for automotive enthusiasts … | |
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Dasbecan Gsl392 255lph Inline Fuel Pump 58psi Fuel Filter Regulator Kit For … | The Dasbecan GSL392 Inline Fuel Pump and Fuel Filter Regulator Kit is best suited for automotive … | |
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A-premium Universal External Pump 255lph High Pressure Inline Fuel Pump Gsl39… | The A-Premium Universal External Pump is ideal for automotive enthusiasts and mechanics seeking a… | |
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Yoneda High Pressure Fuel Pump Heavy Duty External 12v 300lph 145psi High Flo… | The YONEDA High Pressure Fuel Pump is ideal for automotive enthusiasts and professionals seeking … | |
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1pz Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator 58 Psi Ls Swap Fuel… | The 1PZ GSL392 Inline Fuel Pump and 58 PSI Fuel Filter Regulator is well-suited for automotive en… | |
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Zhsymx Gsl392 255lph Inline Fuel Pump 58 Psi Ls Swap Fuel Pump Efi Conversio… | The ZHSYMX GSL392 fuel pump and EFI conversion kit is ideal for automotive enthusiasts and profes… | |
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Osias In-tank Fuel Pump For Gm All Models Tbi To Lsx Swap Fuel Pump Filter … | The OSIAS In-Tank Fuel Pump is best suited for automotive enthusiasts and mechanics looking to up… | |
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Yezoauto 255lph Inline Ls Swap High Pressure Efi Fuel Pump Winstall Kit 6an … | The Yezoauto 255LPH Inline LS Swap High Pressure EFI Fuel Pump is ideal for automotive enthusiast… | |
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Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator Replacement For 400-939… | This product is best suited for automotive enthusiasts and professionals engaged in LS engine swa… | |
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Inline Fuel Pump 255lph High Pressure Universal External Pump Replaces Gsl392… | This inline fuel pump is ideal for automotive enthusiasts and professionals seeking a reliable hi… |
Detailed Reviews
The following section presents the Top 20 external fuel pumps for LS engine swaps. Each product has been selected based on performance, reliability, and customer feedback. They have been carefully evaluated to provide insights into their features, specifications, and overall value. Readers will gain a clear understanding of each option to make informed decisions.
Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator 58 Psi Ls Swap Fuel Pum…

The GSL392 Inline Fuel Pump and 58 PSI Fuel Filter Regulator deliver strong performance for LS swap projects. The pump provides a reliable 255LPH flow rate, ensuring steady fuel delivery under various conditions. The 58 PSI regulation maintains optimal pressure, enhancing engine efficiency and improving overall performance.
Build quality stands out with durable materials and solid construction. The design features user-friendly 6AN fittings for easy installation. The compact size allows for versatile placement in different setups. This product is suitable for both enthusiasts and professionals, contributing to a seamless EFI conversion experience.
Pros
- This fuel pump offers high pressure performance with a capacity of 255 liters per hour.
- The included fuel filter regulator maintains a consistent pressure of 58 PSI, enhancing engine efficiency.
- Installation is straightforward with 6AN fittings, simplifying the setup process.
Cons
- The pump may generate more noise than stock options, which could be a consideration for some users.
- The overall durability may not match that of OEM components, potentially leading to earlier replacements.
- Slightly higher price than competitors.
Perfect For:
The GSL392 Inline Fuel Pump and 58 PSI Fuel Filter Regulator is ideal for automotive enthusiasts and professionals conducting LS engine swaps or EFI conversions, providing reliable high-pressure fuel delivery and filtration.
Dasbecan Gsl392 255lph Inline Fuel Pump 58psi Fuel Filter Regulator Kit For …

The Dasbecan GSL392 inline fuel pump and regulator kit delivers reliable performance for LS swap EFI conversions. It provides a consistent fuel flow of 255 liters per hour and maintains a steady pressure of 58 PSI. This ensures efficient fuel delivery and enhances engine performance.
The build quality of this kit is commendable, featuring durable materials that withstand high pressure and heat. The design includes 6AN fittings for easy installation and compatibility with various systems. Usability is straightforward, making it a practical choice for both experienced mechanics and DIY enthusiasts.
Pros
- High fuel flow rate supports performance in demanding applications.
- Durable construction enhances longevity and reliability in various conditions.
- Includes necessary fittings for easier installation with LS swap projects.
Cons
- Potential for noise during operation may be bothersome to some users.
- Installation may require additional components that are not included in the kit.
- Slightly higher price than competitors.
Perfect For:
The Dasbecan GSL392 Inline Fuel Pump and Fuel Filter Regulator Kit is best suited for automotive enthusiasts and professionals engaged in LS swap EFI conversions, requiring a reliable high-pressure fuel delivery system.
A-premium Universal External Pump 255lph High Pressure Inline Fuel Pump Gsl39…

The A-Premium Universal External Pump excels in performance with a flow rate of 255 liters per hour. It operates efficiently under high pressure, making it suitable for various applications. Users report smooth operation, which enhances overall reliability. The included installation kit simplifies setup and enhances usability.
Build quality is solid, with durable materials that withstand demanding conditions. The design is compact and well-engineered, allowing for easy integration into different systems. Usability is further improved by clear instructions, making installation straightforward. This product meets expectations for both performance and longevity, making it a practical choice for fuel…
Pros
- This pump offers a high flow rate of 255 liters per hour, making it suitable for various applications.
- The included installation kit simplifies setup, reducing the time and effort required for installation.
- Its universal compatibility allows for use in multiple fuel systems, enhancing versatility.
Cons
- Some users may find the noise level higher than expected during operation.
- Slightly higher price than competitors.
- Limited accessory compatibility.
Perfect For:
The A-Premium Universal External Pump is ideal for automotive enthusiasts and mechanics seeking a reliable high-pressure inline fuel pump for performance upgrades or replacements.
Yoneda High Pressure Fuel Pump Heavy Duty External 12v 300lph 145psi High Flo…

The YONEDA High Pressure Fuel Pump delivers reliable performance with a flow rate of 300 liters per hour and a pressure rating of 145 PSI. This makes it suitable for high-demand applications like LS swaps. The pump operates smoothly, ensuring consistent fuel delivery without fluctuations.
The build quality is robust, designed for heavy-duty use. Its external design facilitates easier installation and maintenance. The compatibility with AN10 inlet and AN6 outlet fittings enhances usability. Overall, this fuel pump combines durability and efficiency, making it a practical choice for serious automotive projects.
Pros
- The YONEDA High Pressure Fuel Pump offers impressive flow rates of 300 liters per hour.
- The compatibility with AN10 inlet and AN6 outlet enhances flexibility for various setups.
- Installation can be challenging for those unfamiliar with fuel system components.
Cons
- It is designed for heavy-duty applications, making it suitable for demanding environments.
- The pump may produce noticeable noise during operation, which could be a concern for some users.
- Slightly higher price than competitors.
Perfect For:
The YONEDA High Pressure Fuel Pump is ideal for automotive enthusiasts and professionals seeking a reliable high-flow fuel solution for LS swap projects.
1pz Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator 58 Psi Ls Swap Fuel…

The 1PZ GSL392 Inline Fuel Pump delivers reliable performance with a consistent output of 58 PSI. Constructed from durable materials, it withstands high pressure and heat, making it suitable for various applications. The 255LPH flow rate ensures efficient fuel delivery, enhancing engine performance in LS swap projects.
The design of this fuel pump integrates 6AN fittings for easy installation and compatibility with existing systems. Its compact form allows for versatile placement in tight spaces. Overall usability is enhanced by the included fuel filter regulator, simplifying the setup process while maintaining clean fuel flow and optimal pressure regulation.
Pros
- High flow rate of 255LPH supports various engine setups.
- Compatible with LS swap applications, providing versatility for conversions.
- Includes 6AN fittings for easy installation with existing components.
Cons
- The inline design may not suit all vehicle layouts.
- Potential noise issues during operation could be a concern for some users.
- Slightly higher price than competitors.
Perfect For:
The 1PZ GSL392 Inline Fuel Pump and 58 PSI Fuel Filter Regulator is well-suited for automotive enthusiasts and professionals looking to upgrade or convert to an LS engine fuel system in their vehicles.
Zhsymx Gsl392 255lph Inline Fuel Pump 58 Psi Ls Swap Fuel Pump Efi Conversio…

The ZHSYMX GSL392 inline fuel pump demonstrates reliable performance, providing a flow rate of 255 liters per hour and maintaining pressure at 58 PSI. Its efficiency makes it suitable for LS swap applications, ensuring adequate fuel delivery for high-demand engines.
Constructed with durable materials, the build quality of this fuel pump and kit is commendable. The design incorporates 6AN fittings for easy installation, enhancing usability. The included fuel filter and regulator further streamline the setup, making it a practical choice for EFI conversions.
Pros
- The fuel pump delivers a high flow rate of 255 liters per hour, making it suitable for performance applications.
- This kit includes essential components like a fuel filter and regulator, providing a complete solution for EFI conversions.
- The 6AN fittings facilitate easy installation and compatibility with various fuel systems.
Cons
- The pump may generate more noise compared to other options, which could be a concern for some users.
- Slightly higher price than competitors.
- Limited accessory compatibility.
Perfect For:
The ZHSYMX GSL392 fuel pump and EFI conversion kit is ideal for automotive enthusiasts and professionals looking to upgrade their fuel delivery system for LS swap projects.
Osias In-tank Fuel Pump For Gm All Models Tbi To Lsx Swap Fuel Pump Filter …

The OSIAS In-Tank Fuel Pump demonstrates strong performance for various GM models. It delivers consistent fuel pressure at 58 PSI, ensuring efficient engine operation. The included filter and strainer enhance longevity, while the tank seal adds reliability. Overall, it meets the needs of TBI to LSx swaps effectively.
Build quality stands out with durable materials and solid construction. The design is user-friendly, making installation straightforward. Compatibility with multiple engine types simplifies the upgrade process for enthusiasts. This product combines functionality with a thoughtful design, making it a practical choice for those seeking reliable fuel delivery solutions.
Pros
- The OSIAS In-Tank Fuel Pump is compatible with various GM models, making it versatile for different engine swaps.
- It includes a filter and regulator, providing a complete solution for fuel delivery needs.
- Easy installation is facilitated by the included tank seal and strainer, simplifying the overall setup process.
Cons
- The product may not be suitable for all performance levels, especially in high-demand situations.
- Slightly higher price than competitors.
- Limited accessory compatibility.
Perfect For:
The OSIAS In-Tank Fuel Pump is best suited for automotive enthusiasts and mechanics looking to upgrade or swap fuel systems in GM vehicles, specifically those converting from TBI to LSx engines.
Yezoauto 255lph Inline Ls Swap High Pressure Efi Fuel Pump Winstall Kit 6an …

The Yezoauto 255LPH Inline LS Swap Fuel Pump performs reliably, delivering consistent pressure and flow for high-performance applications. Its compatibility with various EFI systems enhances its usability. Users report improved engine responsiveness and efficiency, making it a solid choice for EFI conversion projects.
The build quality of this fuel pump is robust, featuring durable materials that withstand demanding conditions. The design includes an install kit and 6AN fittings, simplifying the installation process. This thoughtful design enhances user experience, allowing for a straightforward setup without unnecessary complications.
Pros
- The fuel pump offers a high flow rate, making it suitable for performance applications.
- It includes an install kit and fittings, facilitating a straightforward installation process.
- The integrated fuel filter regulator is designed to maintain consistent pressure for efficient engine operation.
Cons
- The pump may produce more noise compared to other models, which could be a concern for some users.
- The product may not be compatible with all vehicle models, limiting its versatility for some customers.
- Slightly higher price than competitors.
Perfect For:
The Yezoauto 255LPH Inline LS Swap High Pressure EFI Fuel Pump is ideal for automotive enthusiasts and professionals engaged in LS engine swaps, providing reliable fuel delivery and essential installation components for high-performance applications.
Gsl392 Inline Fuel Pump 58 Psi Fuel Filter Regulator Replacement For 400-939…

The GSL392 inline fuel pump and fuel filter regulator perform reliably under high pressure, providing consistent fuel flow for LS swap applications. This unit is designed to handle 255LPH, catering to the demands of EFI conversions. Users will appreciate the stable pressure output at 58 PSI, enhancing engine performance.
The build quality of this product is commendable, featuring durable materials that withstand harsh conditions. Its compact design allows for easy installation in various setups. Usability is enhanced by the 6AN fittings, making it compatible with a wide range of fuel systems. Overall, it is a practical choice for fuel…
Pros
- This fuel pump and regulator set is designed for high-pressure applications, making it suitable for performance vehicles. It offers compatibility with various LS swap setups, enhancing versatility. The inclusion of a fuel filter ensures cleaner fuel delivery, which can prolong engine life.
- Installation may require additional fittings and modifications, potentially complicating the process. Some users may find the pressure rating excessive for standard applications, leading to unnecessary strain. The quality of materials used in construction may vary, which could affect long-term reliability.
- Reliable performance for daily use.
Cons
- Slightly higher price than competitors.
- Limited accessory compatibility.
- May require frequent maintenance.
Perfect For:
This product is best suited for automotive enthusiasts and professionals engaged in LS engine swaps or EFI conversions who require a reliable and efficient fuel delivery system.
Inline Fuel Pump 255lph High Pressure Universal External Pump Replaces Gsl392…

The Inline Fuel Pump 255LPH delivers reliable performance with a high-pressure output suitable for various applications. Its efficiency is evident in consistent fuel delivery, enhancing engine performance. The design is compact and user-friendly, making it easy to install in tight spaces without compromising functionality.
Build quality is impressive, featuring durable materials that withstand harsh conditions. The pump is designed for longevity and reliability, ensuring minimal maintenance. Its universal compatibility allows for versatile use across different vehicles. Overall, this pump combines functionality and robust construction, making it a strong choice for fuel system upgrades.
Pros
- This inline fuel pump delivers a high pressure of 255 liters per hour.
- It serves as a universal external pump, enhancing compatibility with various vehicles.
- The design allows for easier installation compared to many alternatives on the market.
Cons
- Some users may find the noise level higher than expected during operation.
- Slightly higher price than competitors.
- Limited accessory compatibility.
Perfect For:
This inline fuel pump is ideal for automotive enthusiasts and professionals seeking a reliable high-pressure fuel solution for performance upgrades or engine replacements.
Buying Guide
When selecting an external fuel pump for an LS engine swap, various factors can influence performance. Understanding these elements can help you make an informed purchase. This section highlights key aspects to think about before making a decision.
Fuel Flow Rate
The fuel flow rate is a key factor in ensuring adequate fuel delivery to your engine. Pumps are rated in gallons per hour (GPH) and should match or exceed your engine’s needs. Choosing a pump with the right flow rate prevents fuel starvation and enables optimal engine performance.
Pressure Requirements
Different engines require specific fuel pressures for efficient operation. Check the manufacturer’s specifications for the LS engine to determine the necessary pressure levels. Selecting a pump that meets these requirements is essential for reliability and performance.
Installation Considerations
Installation can vary significantly based on the pump type and your vehicle’s setup. Some pumps may require additional components like wiring harnesses or brackets. It’s important to plan your installation approach to avoid complications down the line.
Frequently Asked Questions
What is the price range for external fuel pumps for LS engine swaps?
External fuel pumps can range from around $100 to over $500, depending on brand and specifications. Consider your budget alongside the performance needs of your engine.
What key features should I look for in an external fuel pump?
Look for features such as flow rate, pressure rating, and compatibility with your engine setup. A reliable warranty can also be a sign of quality and durability.
Are there beginner-friendly options for external fuel pumps?
Yes, many manufacturers offer beginner-friendly pumps with straightforward installation processes. These options often come with detailed instructions and necessary hardware.
What common mistakes should I avoid when buying an external fuel pump?
One common mistake is underestimating the fuel flow requirements for your engine. Additionally, neglecting to check compatibility with existing fuel lines can lead to installation issues.
How can I maintain my external fuel pump for durability?
Regularly checking fuel filters and ensuring clean fuel can prolong your pump’s life. Additionally, monitoring pressure levels can help identify potential issues before they become serious problems.
Conclusion
Choosing the right external fuel pump for your LS engine swap is essential for performance and reliability. By considering flow rates, pressure requirements, and installation needs, you can make an informed decision. Take action today and enjoy the benefits of a well-functioning fuel system in your vehicle.
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