Best Fuel System For Ls Swap: Compare 10 Fuel System Options

#1 · Best Overall

1. EVIL ENERGY 58 PSI Pump Kit

• Weight: 1.7 kg

Best for: Integrated pump-and-regulator setup.

Why it ranks #1: Combines a 300 LPH external pump, 58 PSI regulator, and 10-micron filter, with listed compatibility for 4.8L, 5.3L, and 6.0L LS V8 swaps.

A 300LPH external inline pump comes bundled with a 58 PSI filter regulator in this EVIL ENERGY kit, bringing fuel movement and pressure control together for an LS EFI conversion. Its 10-micron filter element adds filtration at the regulator, making this a compact component pairing for builders assembling a powered supply.

The external pump is rated for a maximum flow of 300 LPH at 13.5V, giving buyers a defined flow specification when planning an LS EFI system. Alongside it, the regulator maintains 58 PSI and incorporates a 10-micron filter element, combining pressure control and filtration in the supplied setup. The title names 4.8L, 5.3L, and 6.0L V8 conversions. Because the pump is external and inline, installation involves placing that pump in the fuel system rather than using an in-tank hanger.

Skip it if you need an in-tank hanger for a 1973–1991 Square Body; Lanotech's 340LPH hanger includes a sender.

Choose this bundled pump and regulator for a 4.8L, 5.3L, or 6.0L LS EFI conversion using an external inline pump. It is not the in-tank hanger format, and the pump's stated maximum is 300 LPH.

Listed on Amazon as: EVIL ENERGY 58 PSI Fuel Filter Regulator with External High Flow 300LPH Electric Inline Fuel Pump Compatible with LS Swap EFI Conversions (Fits 4.8L/5.3L/6.0L V8)

#2 · Best Adapter Set

2. Codeforge 300LPH Pump Kit

• Weight: 4.1 lb
• Compatible with Vehicle Type: Car, Light Truck, SUV, Truck, Van
• Material: Metal, Plastic

Best for: Quick-connect LS system builder.

Why it ranks #2: Pairs a 300 LPH pump and 58 PSI regulator with AN6 quick-disconnect adapters, including 5/16-inch and 3/8-inch connections.

This Codeforge kit pairs a 300LPH external pump with a 58 PSI filter regulator and multiple AN6 quick-disconnect adapters, giving LS builders both fuel-supply components and connection options. The package is specified for select 4.8L, 5.3L, and 6.0L GM LS V8 engines, with filtration built into the regulator.

The regulator's 10-micron filter and 58 PSI setting bring filtration and pressure control together for compatible EFI fuel rails. Its 300LPH, 12V external pump supplies the system, while included AN6 adapters cover 5/16-inch and 3/8-inch quick-disconnect connections. That assortment can simplify connecting the kit to different listed line sizes during an installation. The title identifies select GM LS V8s, and the package contents include a pump mounting bracket. Buyers should plan around an external pump installation rather than an in-tank arrangement.

Skip it if you want an adjustable regulator rather than a fixed 58 PSI unit; EVIL ENERGY's universal kit lists a 20–120 PSI regulator.

This suits builders of select 4.8L, 5.3L, or 6.0L GM LS V8 EFI systems who want a pump, filtered regulator, and quick-disconnect adapters together. Account for its external-pump installation and fixed 58 PSI regulation.

Listed on Amazon as: 58 PSI Fuel Filter Regulator & 300LPH Electric Inline Fuel Pump Kit, 12V LS Swap EFI Fuel System for Select 4.8L 5.3L 6.0L GM LS V8 Engines, with AN6 Adapters

#3 · Best Long-Hose Kit

3. EVIL ENERGY 20FT Line Kit

• Weight: 1.82 kg
• Material: Cpe Nylon, 304 Stainless Steel, Cpe Rubber…

Best for: Ethanol-free 6AN line kit.

Why it ranks #3: Includes a 20-foot 6AN hose and 58 PSI filter-regulator, making it a useful match for builds that need a substantial custom fuel-line run.

A 20-foot 6AN braided hose is paired with a 58 PSI filter regulator in this EVIL ENERGY LS-swap kit, supporting a custom EFI line run with pressure regulation included. The hose is specified for gasoline, diesel, and other fuels, but explicitly excludes E85 and ethanol, a key boundary for fuel selection.

The 20-foot hose gives the installer material for routing a custom line, and its nylon and stainless-steel braid construction is specified alongside a maximum working pressure of 750 PSI. The included filter regulator supplies the kit's 58 PSI pressure setting for LS swaps and EFI conversions. The hose's listed temperature range is -22°F to 248°F. It is compatible with gasoline and diesel, but the stated exclusion of E85 and ethanol rules it out for those fuels; no pump is listed in the title.

Skip it if you run E85 or ethanol; YEHERIT's 25-foot hose kit does not list the same fuel exclusion.

For an LS-swap or EFI builder routing a 6AN line for gasoline or diesel, this kit combines 20 feet of hose with a 58 PSI regulator. Do not choose it for E85 or ethanol use.

Listed on Amazon as: EVIL ENERGY 6AN LS Swap Fuel Line Kit 20FT CPE Hose 58PSI Filter Regulator

#4 · Longest Hose

4. YEHERIT 25FT Line Kit

• Weight: 2.14 kg
• Compatible with Vehicle Type: Passenger Car
• Material: Stainless Steel

Best for: Long-run custom line installer.

Why it ranks #4: Supplies a 25-foot 6AN EFI hose, filter-regulator, and fittings in one kit for a custom installation needing extra line length.

The included 25-foot 6AN EFI hose is the defining advantage of this YEHERIT kit, giving LS-swap builders material for a longer custom fuel-line route. Its 58 PSI filter regulator and 6AN fittings pair that reach with the pressure control and connections needed for an EFI setup.

A stainless-steel filter regulator handles fuel-pressure regulation at 58 PSI, while the supplied 25-foot 6AN hose lets an installer lay out a custom route rather than source line separately. The kit also includes 6AN fittings, which helps consolidate hose and connection parts for the build. Its stated compatibility includes C5 Corvette applications, and the stainless-steel regulator is specified for high-pressure use. The listed contents do not include an electric fuel pump, so this is a line-and-regulation kit, not a complete powered supply.

Skip it if you need a supplied electric pump; the EVIL ENERGY 58 PSI kit with 300LPH inline pump includes one.

For an LS-swap builder routing a custom 6AN line, this kit combines useful hose length with 58 PSI regulation. It suits builds sourcing a pump separately; the listed fit reference is C5 Corvette.

Listed on Amazon as: 58 PSI LS Swap Fuel Filter Regulator with 25FT 6AN EFI Fuel Hose & 6 AN Fittings Compatible With C5 Corvette

#5

5. CNARQR 20FT Line Kit

• Weight: 1.8 kg

Best for: Long custom fuel-line routing.

Why it ranks #5: Combines a 20-foot hose, AN fitting set, and 58 PSI filter-regulator with a built-in 10-micron filter for a custom swap fuel-line layout.

A supplied 20-foot hose and full AN fitting set are the central draw of this CNARQR kit, giving builders flexibility to route a custom fuel line. The integrated 58 PSI filter regulator adds a specified pressure target and 10-micron filtration, pairing line installation materials with fuel conditioning for an LS swap.

The 20-foot hose provides length for a custom run, while the full AN fitting set supports assembling that route without separately sourcing the listed fitting assortment. At the system end, the integrated regulator maintains 58 PSI and its 10-micron filter is intended to help keep fuel clean and prevent injector clogs. The listing states compatibility with standard gasoline and diesel fuels. It does not list an electric pump among the kit components, so buyers need to provide the pump separately.

Skip it if you need a supplied pump and regulator together; Codeforge's 300LPH kit includes an external inline pump and 58 PSI regulator.

Choose this for an LS-swap builder who needs a long custom hose run, AN fittings, and 58 PSI filtration and regulation in one kit. It is not a complete powered supply because no pump is listed.

Listed on Amazon as: CNARQR 6AN Fuel Line & 58 psi LS Swap Fuel Filter Regulator Kit

#6 · Best Direct AN Unit

6. Goodies Speed 4 BAR Regulator

• Weight: 0.32 kg
• Compatible with Vehicle Type: Light Truck, Passenger Car, SUV, Van
• Material: Stainless Steel

Best for: Direct AN-6 returnless conversion.

Why it ranks #6: Its stainless-steel 4 BAR, or 58 PSI, regulator has -6AN inlet and outlets that connect directly to matching hose or hard line.

Integrated stainless-steel AN-6 inlet and outlets let this Goodies Speed filter-regulator connect directly to -6AN hose or hard line, avoiding adapter fittings for that connection style. Its 58 PSI output is aimed at LS swaps and many EFI conversions, making it a focused option for a returnless supply layout.

The one-part filter and regulator combines a 5-micron aftermarket filter with 58 PSI regulation, so filtration and pressure control sit at the same connection point. Its AN-6 inlet and outlets are ready for -6AN hose or hard line, which can simplify a custom fuel-line installation without adapter fittings. The listing describes it as an OE-style C5 Corvette unit for returnless fuel supply. However, it is for custom or aftermarket applications; the AN-6 ends will not fit original GM application hoses.

Skip it if you need hose and fittings in the same package; YEHERIT's kit includes 25 feet of 6AN hose and 6AN fittings.

A good match for a custom LS or EFI returnless conversion using -6AN hose or hard line, especially when an integrated filter-regulator is wanted. Its AN-6 ends are not compatible with original GM application hoses.

Listed on Amazon as: Fuel Filter/Regulator 4 BAR with -6AN Inlet and Outlets Stainless Steel for LS swaps and EFI conversion

#7

7. WnSEu C5 Filter-Regulator

• Weight: 0.32 kg
• Compatible with Vehicle Type: Passenger Car
• Material: Stainless Steel

Best for: Moderate-flow C5 regulator replacement.

Why it ranks #7: The 58 PSI C5 Corvette-style filter-regulator is listed for several LS families and has a stated maximum flow of 255 LPH.

A stated maximum flow of 255LPH gives this WnSEu C5 Corvette fuel filter regulator a concrete capacity boundary for an LS swap EFI conversion. It maintains 58 PSI and is listed to support 550–600HP, making its published flow and power figures useful for buyers comparing a regulator against their build requirements.

The 58 PSI rating aligns with the stated LS-swap EFI application, while the maximum 255LPH flow and 550–600HP support figure help define the setup's listed operating envelope. Its C5 Corvette fuel-filter-regulator format is paired with compatibility references for several LS-family engines and intake configurations, including LS1, LS2, LS3, LS6, LQ4, LQ9, LM7, and L99. This is a regulator component rather than a listed pump-and-line bundle, so builders must account for the rest of the fuel system separately.

Skip it if you need a bundled 300LPH inline pump; Codeforge's 58 PSI kit includes one with AN6 quick-disconnect adapters.

This is for an LS-swap builder seeking a C5-style 58 PSI filter regulator whose listed flow and power figures match the project. Treat 255LPH and 550–600HP as the product's stated limits, not an all-in-one fuel system.

Listed on Amazon as: MSCRP C5 Corvette Fuel Filter Regulator 58 PSI for LS Swap EFI Conversion

#8

8. SENJWARM LS Filter Kit

• Weight: 0.3 kg
• Compatible with Vehicle Type: LS Swap EFI Conversion C5 Corvette 5.3 Chevy…
• Material: Metal

Best for: EFI connector-adapter replacement.

Why it ranks #8: Includes a 58 PSI filter-regulator and EFI adapters for 3/8-inch inlet, 5/16-inch return, and 6AN-to-3/8-inch outlet connections.

Three included EFI push-on fittings distinguish this SENJWARM regulator kit, covering 3/8-inch inlet, 5/16-inch return, and a 6AN-to-3/8-inch outlet connection. Its 58 PSI fuel filter regulator is aimed at LS swap EFI conversions, so the supplied adapters can help bridge common line connections during installation.

The regulator is listed for 58 PSI LS-swap EFI use, and the included fittings provide specific connection options: 3/8-inch EFI push-on for inlet, 5/16-inch push-on for return, and 6AN male to 3/8-inch push-on for outlet. That can simplify adapting a fuel rail connection layout without buying those listed fittings separately. The title and compatibility information name several LS engine sizes, from 4.8L through 7.0L. The package lists a regulator and adapters, not an electric fuel pump.

Skip it if you need a supplied inline pump with your 58 PSI regulator; EVIL ENERGY's 300LPH kit includes both components.

This suits an LS EFI builder whose installation needs the listed 3/8-inch inlet, 5/16-inch return, and 6AN-to-3/8-inch outlet adapters. It provides filtration and regulation, but not a listed electric pump.

Listed on Amazon as: 58 PSI fit Fuel Filter Regulator Kit for LS Swap EFI Conversion Corvette C5 5.3 Chevy Fuel Pressure Filter with Return AN-6 Fittings 3/8'' 5/16'' EFI Inlet Outlet Return Fuel Rail Adpater

#9

9. Lanotech Square Body Hanger

• Compatible with Vehicle Type: Chevy C10, C15, K10, K15; GMC C15, C25, K25…
• Material: Metal

Best for: Square Body in-tank LS conversion.

Why it ranks #9: A specialized option for 1973–1991 Square Body LS or LT swaps, with a 340 LPH pump hanger, sender, and plug-and-play adapter harness.

A 340LPH fuel-pump hanger with sender targets 1973–1991 Chevrolet and GMC Square Body trucks receiving an LS or LT swap. Its plug-and-play adapter harness for EP381-style pumps and included 14-gauge pigtail address the electrical side, while the hanger's 58 PSI rating matches the listed EFI swap use.

The hanger is specified for EFI LS or LT-swapped Square Body trucks, including named C10, K10, and related models, giving this component a narrower vehicle focus than universal inline kits. Its 340LPH pump capacity and 58 PSI rating suit the listed swap application, while the sender combines fuel delivery and sending functions at the tank. The included adapter harness works with EP381-style fuel pumps, and the listing says most trucks are direct fit, though some tanks may need minor adjustment.

Skip it if you are building a non-Square Body car and want an external pump kit; Codeforge's 300LPH kit is listed for cars and other vehicle types.

For a 1973–1991 Square Body owner converting to EFI with an LS or LT engine, this hanger integrates pump and sender functions. It is vehicle-specific, and the listing notes that some tanks may need minor adjustment.

Listed on Amazon as: 340LPH Fuel Pump Hanger -6AN w/Sender for 1973-1991 LS/LT Swap

#10

10. EVIL ENERGY Adjustable EFI Kit

• Weight: 2.45 kg
• Material: 6061-T6 Aluminum Alloy

Best for: Adjustable-pressure universal EFI setup.

Why it ranks #10: This universal EFI kit includes a pump, 10-micron filter, regulator, and fittings, but its adjustable 20–120 PSI range is less specifically matched to LS swaps.

An adjustable 20–120 PSI regulator gives this EVIL ENERGY kit a broader pressure-setting range than a fixed-pressure LS swap unit. It combines that regulator with a 300LPH inline pump, a 10-micron filter, and a fitting kit, letting builders assemble a configurable EFI fuel system from one package.

The adjustable regulator spans 20–120 PSI, so the builder can set pressure within the listed range rather than rely on a fixed 58 PSI regulator. A 300LPH inline pump provides the fuel supply, while the 10-micron filter adds filtration to the system. The included fitting kit reduces the need to source fittings separately, and the product is described as universal. Its 6061-T6 aluminum alloy construction is specified for the kit body; installation still uses an inline pump arrangement.

Skip it if you want a fixed 58 PSI regulator without setting pressure; EVIL ENERGY's 58 PSI inline-pump kit lists that fixed output.

This kit fits a builder who wants an inline EFI system with a pressure setting adjustable from 20 to 120 PSI and supplied fittings. Choose a fixed-pressure kit instead if the LS swap calls specifically for 58 PSI regulation.

Listed on Amazon as: EVIL ENERGY Fuel Filter 10 Micron Inline 300LPH Fuel Pump and Adjustable Fuel Pressure Regulator (20-120PSI) Kit, EFI Fuel System Kit with 6AN 10AN ORB Fitting, Universal, Black