Best Ls Swap Fuel Pump for Inline and In-Tank Setups

#1 · Best Overall

1. EVIL ENERGY 300LPH Inline Pump and Regulator

• Weight: 1.7 kg

Best for: Integrated regulator-and-pump setup.

Why it ranks #1: Pairs a 58 PSI regulator and 10-micron filter with a 300 LPH external pump, making it a well-specified integrated option for LS EFI conversions.

A 58 PSI filter regulator paired with a 300 LPH external pump combines pressure control and filtration in one LS-swap-oriented package. It targets 4.8L, 5.3L, and 6.0L V8 EFI conversions, with the 10-micron element helping keep fuel reaching the engine cleaner.

The external inline pump is rated for a maximum 300 LPH at 13.5V and operation under pressure up to 75 PSI, providing stated flow capacity for higher-horsepower applications. Its matching regulator maintains 58 PSI, while the integrated 10-micron filter supports cleaner delivery to EFI components. Buyers get those functions together rather than sourcing a pump and regulator separately; the listed engine fit focuses on 4.8L, 5.3L, and 6.0L V8 LS swaps.

Skip it if you need a tank-mounted hanger for a 1973–1991 Square Body; Lanotech’s 340LPH Fuel Pump Hanger includes a sender.

Choose this combined external-pump and regulator setup for a listed 4.8L, 5.3L, or 6.0L V8 EFI conversion that calls for 58 PSI. Its stated application does not cover every LS engine or installation layout.

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-Inclusive Kit

2. Yinlowa 255LPH Inline Kit

• Compatible with Vehicle Type: Passenger Car
• Weight: 0.92 kg

Best for: Adapter-inclusive inline kit.

Why it ranks #2: Designed for a 58 PSI LS swap and includes an external pump, filter regulator, and fuel-line adapters for common 3/8-inch and 5/16-inch connections.

Three included fuel-line adapters distinguish Yinlowa’s 255 LPH inline pump kit from a pump-only listing. It pairs an external pump with a 58 PSI filter regulator and adapters for 3/8-inch supply, 5/16-inch return, and 6AN-to-3/8-inch connections, giving LS-swap installers several specified connection options.

The 58 PSI fuel filter regulator matches the pressure stated in the LS-swap title, while the 255 LPH inline pump supplies the kit’s listed flow rating. Included 3/8-inch fuel-line and 5/16-inch return-line adapters address two line sizes, and a 6AN-to-3/8-inch adapter adds another connection option. These bundled parts can simplify gathering components for an external-pump installation, but the listing does not specify a particular engine displacement or vehicle fitment range.

Skip it if you need a documented Square Body tank-hanger fit; Lanotech’s 340LPH Fuel Pump Hanger is listed for 1973–1991 trucks.

This kit suits an installer assembling an external LS-swap fuel system who can use its stated adapters and 58 PSI regulator. Check the required vehicle and engine application independently because no detailed fitment range is supplied.

Listed on Amazon as: Yinlowa 255LPH Inline Fuel Pump Kit, Replaces GSL392, 58 PSI LS Swap

#3 · Best AN6-Fitting Kit

3. Codeforge 300LPH Inline Kit

• Compatible with Vehicle Type: Car, Light Truck, SUV, Truck, Van
• Weight: 4.1 lb
• Operation Mode: Automatic

Best for: Adapter-rich 300 LPH LS kit.

Why it ranks #3: Combines a 300 LPH pump with a 58 PSI filter regulator and multiple AN6 quick-disconnect adapters for a configurable inline EFI installation.

A 300 LPH external pump, 58 PSI regulator, and multiple AN6 quick-disconnect fittings form the core of Codeforge’s LS-swap kit. The regulator includes a 10-micron filter, and the listed 4.8L, 5.3L, and 6.0L GM LS V8 applications give buyers a defined engine-use range.

The regulator’s 58 PSI setting supports the stated EFI fuel-rail pressure, while its 10-micron filter element helps keep fuel cleaner before it reaches sensitive components. The external pump is rated up to 300 LPH under standard working pressure, with the listing describing support for naturally aspirated applications up to 750 hp. Included AN6 quick disconnects cover 5/16-inch and 3/8-inch connections, helping match the kit to the specified line interfaces during installation.

Skip it if you need a Square Body tank-hanger assembly rather than an external kit; Lanotech’s 340LPH Fuel Pump Hanger includes a sender.

This kit fits a builder seeking an external LS EFI setup with regulator, filter, and AN6 adapters in one package. Its listed engine range is select GM LS V8s, and the stated 750 hp support is naturally aspirated.

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

#4 · Best TBI Drop-In

4. Lanotech 58PSI TBI Replacement Pump

• Compatible with Vehicle Type: SUV, Truck, Van, Pickup, Suburban, Blazer, Jimmy
• Weight: 14.4 oz
• Operation Mode: Mechanical

Best for: 1982–1995 GM TBI replacement.

Why it ranks #4: Specifically targets 1982–1995 GM TBI vehicles and includes a pump, filter, strainer, tank seals, and clamps for a listed no-modification replacement.

A direct-replacement format for 1982–1995 GM TBI vehicles is the central advantage of Lanotech’s 58 PSI pump. The listing says installation requires no cutting, splicing, or hanger modification, and includes a pump, filter, strainer, tank seals, and stainless-steel clamps for an LS-swap fuel-system update.

Because the unit is described as a drop-in replacement for the factory pump, it aims to preserve the existing hanger rather than requiring cutting or splicing. That can simplify a TBI-to-LS conversion on the stated 1982–1995 GM applications. The specified 58 PSI matches the pressure required by LS engines according to the listing, and supplied filter, strainer, seals, and clamps cover several replacement pieces in the same package. Verify the vehicle falls within the stated application range.

Skip it if you need an external inline pump with adapters; Yinlowa’s 255LPH Inline Fuel Pump Kit includes a regulator and line adapters.

This suits a GM TBI owner converting to LS power who wants a factory-hanger replacement and the listed service components together. Its stated fit is limited to 1982–1995 GM TBI vehicles, rather than universal LS-swap use.

Listed on Amazon as: 58PSI High Pressure Fuel Pump for 82-95 GM TBI LSx Swap

#5 · Best Square Body Hanger

5. Lanotech Square Body Fuel Pump Hanger

• Compatible with Vehicle Type: Chevy C10, C15, K10, K15; GMC C15, C25, K25…
• Operation Mode: Normally Closed

Best for: Square Body tank-hanger conversion.

Why it ranks #5: A 340 LPH hanger with a sender is listed for 1973–1991 Square Body LS or LT swaps, with a plug-and-play adapter harness and lifetime warranty.

A 340 LPH pump hanger with a fuel sender targets 1973–1991 Chevrolet and GMC Square Body trucks receiving LS or LT swaps. Its -6AN connection and included plug-and-play adapter harness address both plumbing and wiring needs, while the listing specifies a 58 PSI operating target.

The hanger is listed for EFI-swapped Square Body trucks, including C10 and K10 applications, and is a direct fit for most 1973–1991 trucks; some tanks may need minor adjustment. Its 14-gauge pigtail and included adapter harness for EP381-style pumps can reduce the need for in-tank splices and solder joints. A -6AN connection supports the stated plumbing approach without compression fittings, while the included sender combines fuel supply and sending functions in the hanger assembly.

Skip it if you need a replacement pump for a 1982–1995 GM TBI hanger; Lanotech’s 58PSI High Pressure Fuel Pump is a listed direct replacement.

For a Square Body owner planning an LS or LT EFI conversion, this hanger combines pump, sender, and adapter harness functions. Allow for possible minor tank adjustment, since the listing does not promise a modification-free fit in every tank.

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

#6

6. OXCANO EP381 Pump with Regulator

• Compatible with Vehicle Type: Car, Truck, Van
• Weight: 1.4 lb
• Operation Mode: Electric

Best for: EP381-style TBI replacement.

Why it ranks #6: Lists 58 PSI regulation and direct replacement fitment for 1982–1995 GM TBI pumps, with a tank seal and fuel filter included.

Compatibility with all LS-series motors and a direct-replacement claim for 1982–1995 GM TBI pumps make this OXCANO EP381-style unit a targeted TBI-to-LS option. The package specifies a 58 PSI regulator, tank seal, and fuel filter, connecting the replacement-pump format with LS-swap pressure needs.

The listing names LS engines including LM7, LR4, L33, LC9, LQ4, LQ9, L92, LS1, LS2, and LS6, while identifying the pump as a direct replacement for AC Delco EP381. That combination helps buyers relate engine choice to the intended TBI donor-pump format. A 58 PSI regulator, tank seal, and fuel filter are listed with the replacement, supporting a more complete changeover than a pump alone. The listed inlet and outlet connections are 0.75 and 0.38 inches.

Skip it if you need an external inline kit with several fuel-line adapters; Yinlowa’s 255LPH Inline Fuel Pump Kit lists those adapters.

Choose this EP381-style replacement for a listed TBI-to-LS conversion when the donor vehicle and OE pump reference match. Its in-tank replacement format differs from an external inline setup, and the specified connection sizes matter for installation planning.

Listed on Amazon as: EP381 Fuel Pump TBI to LSX Swap with Fuel Pressure 58PSI Regulator

#7

7. Generic EP381 In-Tank Pump

• Compatible with Vehicle Type: Car

Best for: In-tank EP381 LS conversion pump.

Why it ranks #7: Designed as an EP381 replacement for TBI-to-LS conversions and states 58 PSI support, but its available flow figures are presented as 164/145 LPH.

A 58 PSI in-tank replacement for AC Delco EP381 targets TBI-to-LS conversions and names both car and truck LS engine families. The listing specifies 164/145 LPH electric-pump figures and includes LM7, LR4, L33, LC9, LQ4, LS1, LS2, LS3, and LS6 among its stated applications.

The EP381 replacement reference links this pump to the stated TBI-to-LS conversion use, while 58 PSI addresses the pressure requirement identified for LS fuel injection. Its named engine coverage spans several truck and car LS families, including LM7, LR4, L33, LC9, LQ4, LS1, LS2, LS3, and LS6. The title gives 164/145 LPH figures, but does not explain when each applies, so buyers should not treat them as a single unambiguous flow rating.

Skip it if you need a regulator and filter explicitly included; OXCANO’s EP381 Fuel Pump TBI to LSX Swap lists both with its pump.

This is aimed at an LS-swap builder seeking an in-tank EP381 replacement for a listed engine family. Its dual 164/145 LPH figures are not explained, so flow-sensitive projects should resolve that ambiguity before choosing it.

Listed on Amazon as: TBI to LS Swap Fuel Pump In-Tank 58PSI High Pressure for LS Engines, 164/145 LPH Electric Fuel Pump Replacement for AC Delco EP381, Fits LM7 LR4 L33 LC9 LQ4 LS1 LS2 LS3 LS6

#8

8. UEANAZZ EP381 Pump

• Compatible with Vehicle Type: TBI to LSx Swap Fuel Pump, Chevrolet Tahoe…
• Weight: 0.35 kg
• Operation Mode: Automatic

Best for: Stainless-steel EP381 replacement.

Why it ranks #8: Lists GM 1982–1995 and TBI-to-LS fitment with a lifetime limited warranty, but the supplied specifications provide fewer installation details.

A stainless-steel body distinguishes this EP381-style 58 PSI pump for GM TBI-to-LS conversions. The listing identifies Chevrolet Tahoe, GMC Yukon, and 1982–1995 GM applications, while the automatic operating mode and included-pump description keep the product focused on replacement rather than an adapter-rich external kit.

The EP381 reference and stated 1982–1995 GM compatibility make this a targeted in-tank replacement option for buyers working with a TBI donor system. Its 58 PSI pressure specification matches the requirement named in the title for LS swaps, and the stainless-steel body is the specified construction material. The listing also names Tahoe and Yukon applications. Since the included component is listed simply as a fuel pump, buyers needing a regulator, filter, or installation adapters should account for those separately.

Skip it if you need a regulator and filter in the same kit; OXCANO’s EP381 Fuel Pump TBI to LSX Swap includes both.

This suits a buyer replacing an EP381-style pump for a listed GM TBI-to-LS application who values the stated stainless-steel body. Plan separately for any regulator, filter, or adapters, which are not listed as included.

Listed on Amazon as: EP381 Fuel Pump for GM TBI to LS Swap with 58PSI Fuel Pressure Regulator

#9

9. AuHydraXel Square Body Assembly

• Compatible with Vehicle Type: Truck
• Operation Mode: Automatic

Best for: Square Body high-flow assembly.

Why it ranks #9: Targets 1973–1991 Chevy and GMC Square Body LS/LT swaps, but its title says 255 LPH while its features and description state 450 LPH.

This fuel-pump assembly is listed for 1973–1991 Chevy and GMC Square Body trucks and covers selected LS and LT swap applications. Its flow figures conflict: the title says 255 LPH, while the feature text describes a 450 LPH pump, making clarification important before choosing it.

The stated vehicle coverage includes C10, K10, C20, K20, C30, and K30 trucks, plus certain Suburban and Blazer models; the application text also names selected LS1, LS3, LS7, LT1, and L86 swaps. That specificity can help a Square Body builder assess whether the assembly suits the project. However, the title identifies a 255 LPH assembly while the feature text says 450 LPH, so the available information does not establish which flow rating applies.

Skip it if you require an internally consistent flow rating before selecting a Square Body hanger; Lanotech’s 340LPH Fuel Pump Hanger states 340 LPH.

Consider this assembly only if your Square Body or selected LS/LT application matches its stated coverage and you can resolve the conflicting flow figures. The title and feature text disagree, so flow-sensitive builds need clarification first.

Listed on Amazon as: 255LPH LS Swap Fuel Pump Assembly for 73-91 Chevy GMC C/K Trucks LS/LT

#10

10. EVIL ENERGY 255LPH Inline Pump

• Operation Mode: Automatic

Best for: External pump with hose-size clarity.

Why it ranks #10: Provides a standalone 255 LPH external pump, but the listed details do not identify an LS-specific regulator or vehicle fitment for the conversion.

A 255 LPH external pump comes with a 52 mm bracket clamp, giving this EVIL ENERGY unit a defined mounting component for inline installations. Its hose connections are specifically listed as a 3/8-inch inlet and 5/16-inch outlet, a useful distinction for builders sizing push-on rubber fuel hoses.

The stated 255 LPH maximum flow is aimed at high-performance builds needing higher-volume delivery under demanding load. The included 52 mm bracket clamp supports mounting the external pump, while the inlet and outlet dimensions identify the push-on rubber hose sizes required: 3/8 inch at the inlet and 5/16 inch at the outlet. Since the outlet is not 3/8 inch, accounting for that smaller connection during hose selection can avoid choosing a mismatched outlet hose.

Skip it if you want a pump-and-regulator kit with adapters; Codeforge’s 300LPH Electric Inline Fuel Pump Kit includes a 58 PSI regulator and AN6 fittings.

This suits a builder sourcing an external pump separately and able to accommodate the 3/8-inch inlet and 5/16-inch outlet. The clamp is included, but the listing does not list a regulator or filter in the package.

Listed on Amazon as: EVIL ENERGY External Inline Electric Fuel Pump, 255 LPH High Pressure with 52MM Bracket Clamp, Black