When undertaking an LS swap project, selecting the right electric fuel pump is essential for optimal engine performance. The fuel pump plays a significant role in delivering the right amount of fuel at the right pressure. This selection can affect everything from horsepower to reliability. Various electric fuel pumps on the market cater to different needs and budgets. This blog explores some of the best options available, highlighting their features, benefits, and suitability for LS swap applications. Whether working on a vintage car or a modern build, finding the right fuel pump can enhance the overall performance of your engine.
List of Top 5 best electric fuel pump for ls swap
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Top 5 best electric fuel pump for ls swap Reviews
In the world of LS swaps, selecting the right electric fuel pump is essential for optimal performance. This section presents a review of the top five electric fuel pumps that are well-suited for LS engine conversions. Each product has been evaluated based on key criteria such as reliability, flow rate, and ease of installation. The reviews aim to provide clear insights to help make an informed decision when upgrading or replacing a fuel pump for an LS swap project.
GSL392 Inline Fuel Pump with 58 PSI Regulator and Filter for LS Swap EFI Conversion. High pressure 255LPH external pump with 6AN fittings.

Specifications:
– Replacement fuel filter regulator kit delivers 58 PSI to the fuel rail.
– Kit includes 6AN adapter fittings for LS swap applications.
– Features a 10 micron fuel filter for clean fuel delivery.
– Protects engine operation and extends service lifespan.
– GSL392 high pressure fuel pump designed for racing and performance vehicles.
– Meets requirements for modern turbocharging applications.
– At 80 PSI, the pump flows approximately 132 liters per hour.
– An equivalent high pressure pump can flow over 210 liters per hour at the same pressure.
– Fits EFI applications including turbo and supercharged setups.
– Compatible with various Chevy LS-based engines from 1999 to 2014.
– Replacement part numbers for the fuel filter regulator are provided for reference.
– Direct fit with mounting bracket and rubber insulator for easy installation.
– Creates a returnless fuel supply for LS engine swaps and electronic fuel injection conversions.
– Includes necessary fittings for inlet and return lines.
– Comes with a 12-month warranty and lifetime technical support.
– Contact information provided for replacement inquiries if needed.
The replacement 58 PSI fuel filter regulator and GSL392 high-pressure fuel pump kit offers reliable performance for LS engine swaps. With easy installation and comprehensive compatibility, it delivers clean fuel efficiently while protecting engine longevity. The kit includes all necessary fittings and comes with a 12-month warranty, ensuring a hassle-free…
Pros:
– The fuel pressure regulator filter kit delivers a consistent 58 PSI, suitable for LS swap applications.
– The 10 micron fuel filter protects the engine by ensuring clean fuel delivery, potentially extending engine lifespan.
– Installation is straightforward due to the OEM design and included mounting bracket, allowing for a returnless fuel supply.
Cons:
– Compatibility is limited to specific Chevy LS-based engines, which may not suit all vehicle types.
– The high-pressure fuel pump may require additional modifications for certain applications, complicating installation.
– Replacement parts can be numerous, making it necessary to verify compatibility before purchase.
Best For:
This fuel filter regulator and high-pressure fuel pump kit is best suited for automotive enthusiasts and mechanics working on LS engine swaps or electronic fuel injection conversions, particularly in turbocharged or supercharged applications.
High Flow 300LPH 12V Electric Fuel Pump

Specifications:
– Designed specifically for 12V DC EFI systems.
– Test flow rates of 200 LPH at 75 PSI and 12V, 255 LPH at 43 PSI and 12V, and 300 LPH at 43 PSI and 13.5V.
– Operating pressure of 75 PSI.
– Operating temperature range from -68 °F to 194 °F.
– Compatible with various fuels including gasoline, pump gas, race gas, diesel, E85, and alcohol/ethanol.
– Recommended installation location is below the tank to allow for gravity-fed fuel from the fuel tank.
– Installation instructions are included for ease of use.
This fuel pump is designed specifically for 12V DC EFI systems. It offers impressive flow rates of up to 300 LPH under optimal conditions. Compatible with various fuels, including gasoline and E85, it operates efficiently in a wide temperature range. Installation is straightforward, with instructions included for below-tank placement.
Pros:
– The product is designed specifically for 12V DC EFI systems, ensuring compatibility and reliability.
– It offers multiple flow rates, accommodating various pressure requirements for different applications.
– It is versatile, as it can handle a range of fuel types, including gasoline, diesel, and ethanol blends.
Cons:
– Limited to 12V DC EFI systems, which may restrict its use for other setups.
– The recommended installation below the tank may complicate the installation process for some users.
– Operating temperature range may not be suitable for extreme conditions outside its specified limits.
Best For:
This product is best suited for users with a 12V DC EFI system who require a high-performance fuel pump compatible with various fuel types, including gasoline, diesel, and E85, and who can follow installation instructions for optimal placement below the fuel tank.
HFP-367-F2-AN6 Quantum TBI to LSX Swap Fuel Pump with Regulator and Filter for GM Models. Replacement for EP381. Delivers 58PSI. Includes fittings.

Specifications:
– Drop-in replacement with a Lifetime Warranty.
– 100% Direct OEM fit with no modification necessary.
– All parts match OEM specifications.
– Compatible with modern ethanol-infused pump gasoline.
– Specifically designed for quiet operation.
– Designed and constructed for problem-free operation exceeding 100,000 miles or 30,000 hours.
This fuel pump offers a seamless drop-in replacement with a lifetime warranty, matching all OEM specifications without modifications. It operates quietly, even with ethanol-infused gasoline, and is built for reliable performance exceeding 100,000 miles or 30,000 hours. A solid choice for hassle-free operation.
Pros:
– The product serves as a drop-in replacement with a lifetime warranty, ensuring peace of mind for the user.
– It is a 100% direct OEM fit, requiring no modifications, which simplifies installation.
– The pump is compatible with modern ethanol-infused gasoline and is designed for quiet operation, enhancing user experience.
– It is built for durability, offering reliable performance for over 100,000 miles or 30,000 hours.
Cons:
– While the product is designed for problem-free operation, there may still be occasional issues with compatibility in unique situations.
– The reliance on OEM specifications might limit options for consumers seeking aftermarket alternatives.
– The focus on quiet operation may lead to a trade-off in performance for those who prioritize power over noise levels.
Best For:
This product is best suited for vehicle owners seeking a reliable fuel pump that requires no modifications for installation and is designed for long-lasting performance, even with modern fuel types.
Fuel Pump for Chevy GMC LS/LT Swap 450LPH with AN Fitting and Sending Unit

Specifications:
– Applications: Suitable for EFI LS or LT swapped Square Body applications.
– Wiring: Includes a 14 gauge 255LPH pigtail and a plug and play adapter harness for AC Delco EP381 pump.
– Hose: Comes with a submersible high pressure rubber hose, compatible with gasoline and ethanol based fuels (E85).
– Safety: Facilitates LS/LT swaps in Square Body pickups without the need for compression fittings.
– Pressure Rating: Designed for EFI LS or LT (L83/L86/LT1) swapped Square Body applications rated at 58psi.
This LS/LT swap kit is ideal for Square Body pickups. It includes a 14-gauge pigtail and a plug-and-play adapter harness for AC Delco EP381 pumps. The submersible rubber hose works with gasoline and E85, allowing for safe high-pressure installation without compression fittings. A reliable choice for EFI applications.
Pros:
– Compatible with EFI LS or LT swapped Square Body applications, providing versatility in use.
– Includes a 14 gauge pigtail and a plug-and-play adapter harness for easy installation with AC Delco EP381 pump.
– The submersible high-pressure rubber hose is suitable for both gasoline and ethanol-based fuels, enhancing fuel compatibility.
Cons:
– Limited to specific applications, which may restrict use for some users.
– The reliance on specific components like the AC Delco EP381 pump may require additional purchases.
– Installation may still require technical knowledge, which could be challenging for inexperienced users.
Best For:
This product is best suited for automotive enthusiasts looking to perform EFI LS or LT swaps on Square Body pickup trucks, as it provides the necessary components for a safe and efficient installation without the need for compression fittings.
High Flow 300LPH 12V External Inline Fuel Pump with Bracket Clamp.

Specifications:
– The external fuel pump is designed for use with a 12V DC electric injection system.
– It has a test flow of 200 liters per hour at 75 PSI and 12V, 255 liters per hour at 43 PSI and 12V, and 300 liters per hour at 43 PSI and 13.5V.
– The operating pressure is 75 PSI.
– The operating temperature range is from -68 °F to 194 °F.
– The pump is compatible with gasoline, pump gas, race gas, diesel, E85, and alcohol/ethanol.
– It is recommended to install the pump below the tank to allow gravity-fed fuel from the fuel tank.
– Installation instructions are included with the pump.
The external fuel pump is designed for 12V DC electric injection systems. It delivers impressive flow rates of up to 300 LPH and operates under a wide temperature range. Compatible with various fuels, including gasoline and E85, its recommended installation below the tank ensures efficient gravity feed. Instructions are included…
Pros:
The external fuel pump is designed specifically for 12V DC electric injection systems, ensuring compatibility with a range of vehicles.
It offers impressive test flow rates, providing options of 200 LPH at 75 PSI, 255 LPH at 43 PSI, and 300 LPH at 43 PSI with a slightly higher voltage.
The pump is versatile, compatible with various fuel types including gasoline, diesel, E85, and alcohol/ethanol.
Cons:
Installation must be conducted below the fuel tank, which may limit placement options and complicate installation for some users.
The pump is only suitable for 12V systems, which may restrict its use in vehicles with different electrical configurations.
Operating temperature range may not be ideal for extreme conditions, potentially affecting performance in very low or very high temperatures.
Best For:
This external fuel pump is best suited for automotive enthusiasts and professionals who require a reliable and efficient solution for 12V DC electric injection systems, particularly those using gasoline, diesel, or alcohol-based fuels. Its high flow rate and operating pressure make it ideal for performance applications. The installation recommendations ensure a straightforward setup for users.
Things to Consider Before Buying best electric fuel pump for ls swap
When selecting the best electric fuel pump for an LS swap, several factors require careful evaluation. The compatibility with your engine and fuel requirements is paramount. Additionally, consider aspects such as flow rate, pressure, and installation ease to ensure a successful upgrade.
Choosing the Right Fuel Flow Rate
When selecting an electric fuel pump for an LS swap, the flow rate is a key factor. The fuel pump must provide enough fuel to support the engine’s horsepower requirements. A pump that is too small may lead to fuel starvation, while one that is too large can cause pressure issues.
Compatibility with Fuel Type
Compatibility with the fuel type is another important aspect. Many LS swaps use gasoline, but some may require pumps that can handle ethanol or other blends. Ensuring the fuel pump can accommodate the intended fuel type will prevent operational problems down the line.
Pressure Requirements
Pressure requirements vary among different LS engines and setups. It is essential to match the pump’s pressure rating with the engine’s needs for optimal performance. A mismatch can lead to poor engine performance and potential damage.
FAQ for best electric fuel pump for ls swap
What is the best electric fuel pump for an LS swap?
The best electric fuel pump for an LS swap typically offers high flow rates and compatibility with both carbureted and fuel-injected systems. Popular choices include the AEM 50-1000 and the Walbro 450, known for their reliability and performance.
How do I choose the right fuel pump for my LS swap?
Choosing the right fuel pump involves considering the engine’s horsepower and fuel requirements. It is advisable to select a pump that exceeds the necessary flow rate to accommodate future upgrades.
What are the benefits of using an electric fuel pump for an LS swap?
Electric fuel pumps provide consistent fuel delivery and can handle higher pressures than mechanical pumps. They are often more efficient and easier to install in modified vehicles.
Do I need a fuel pressure regulator with an electric fuel pump?
Yes, a fuel pressure regulator is necessary to maintain the correct fuel pressure for the engine. It ensures that the fuel pump delivers the right amount of fuel to the injectors.
Can I use a stock fuel tank with an aftermarket electric fuel pump?
In many cases, a stock fuel tank can be used with an aftermarket electric fuel pump, but modifications may be needed for proper fitment and fuel pickup. It is essential to verify compatibility to avoid issues during operation.
Conclusion
The blog provides an overview of five electric fuel pumps suitable for LS swaps. Each option is evaluated based on performance, reliability, and compatibility. The reviews aim to assist readers in making informed choices for their projects.
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