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QFS LS Swap Fuel Pump Hanger w/ Barb Fittings for 1973-1991 Square Body Pickup, C10 / C20 / C30, K10 / K20 / K30, R10 / R20 / R30, V10 / V20 / V30, QFS-H881 QFS

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LS Swap Fuel Pump Hanger w/ Barb Fittings for 1973-1991 Square Body Pickup, C10 / C20 / C30, K10 / K20 / K30, R10 / R20 / R30, V10 / V20 / V30, QFS-H881 QFS

$171.98 - $305.98
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SKU:
QFS-H881-0-BC
MPN:
QFS-H881-0
Availability:
Ships in 2-5 business days
Weight:
2.00 LBS

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Looking for a fuel system solution for your 1973-1991 LS or LT Swap Square Body? Look no further! Our brand new barbed fitting hanger is a clean sheet design, meant to facilitate the installation of the EP381, 255LPH, or 340LPH fuel pump without splicing connectors inside the tank. Every hanger comes standard with two wiring pigtails meant to fit the AC Delco EP381, as well as the Walbro 255LPH and other 340LPH In-Tank pumps. Quantum fuel pump hangers feature a lifetime warranty on both the Quantum fuel pumps themselves, as well as the sending units. Just select your desired pump option from the dropdown menu to get your swap off to a great start!

But wait! Swapping an LS or LT into your square body pickup requires more than just a new fuel pump. The entire fuel system needs to be upgraded in order to withstand the increased demand from a fuel injection system. The Quantum fuel system option takes the headache out of complex part selection and lets you add on genuine Phenix hoses and your choice of a Quantum brand filter/regulator or a Phenix filter and regulator.

More details here:

NOTE: Do NOT select the pump + filter/regulator option if you want to add-on a fuel system. Each fuel system comes with a filter and regulator.

FEATURES:

  • Applications: LS, LT, or any EFI swapped Square Body pickup
  • Fitting Type: Barb fitting (EFI hose clamps included)
  • Type: In-tank Fuel Pump Hanger with Sending Unit
  • Wiring: 14 gauge “Walbro style” 255LPH/340LPH pigtail included. Plug and play adapter harness included for use with AC Delco EP381 pump.
  • Coating: Corrosion resistant
  • Submersible high pressure hose included, compatible with gasoline as well as ethanol based fuels (E85)
  • Check Valve: Integrated check valve built into fuel pump outlet
  • Serialized fuel pump body guarantees Lifetime Warranty


BENEFITS:

  • Safely LS/LT swap your Square Body pickup by using a brand new drop-in hanger with calibrated sending unit and optional preinstalled pump
  • Eliminate failure prone splices and solder joints inside the fuel tank
  • Can be used on any LS, LT, or EFI motor (the optional filter add-on is standard Corvette pressure of 58psi)
  • Compatible with modern ethanol-infused pump gasoline as well as E85
  • Lifetime Warranty

Pump and filter options available.

Brand Name:
Quantum
This product has Quantum and Walbro pump options. For Hanger and QFS components: All QFS brand products are backed by a lifetime warranty. QFS products that fail at any time will be replaced under warranty if it is determined that the failure was due to a defect in workmanship or material. This warranty only applies to the original customer and is non-transferable. Improper use or installation of the product voids this warranty, and Quantum Fuel Systems is not responsible for incidental costs resulting from failure of the product. For Walbro pumps: There is a Limited warranty on all Walbro/TI Automotive products. Any that fail prematurely may qualify for replacement if it is determined that the failure was due to a defect in workmanship or material. This warranty only applies to the original customer and is non-transferable. Improper use, installation, or repair of the product voids this warranty, and Quantum Fuel Systems is not responsible for incidental costs resulting from the failure of the product. Quantum Fuel Systems will provide one (1) warranty replacement of the original Walbro/TI Automotive product within sixty (60) days of the original purchase date. All warranty claims placed beyond this 60-day period will need to be sent directly to Walbro/TI Automotive. Please contact support@highflowfuel.com for instructions on how to proceed with Walbro/TI Automotive's warranty process. Alternatively, Quantum Fuel Systems will offer to replace a Walbro/TI Automotive pump outside of the 60-day period with a QFS manufactured pump that is interchangeable with the original pump purchased. Please note that Quantum Fuel Systems does not manufacture an interchangeable pump for all Walbro/TI Automotive pumps and this option is subject to availability of the product. Please contact support@highflowfuel.com for warranty requests regarding this product.

QFS-H881 LS Swap Fuel Pump Hanger With Barb Fittings for 1973-1991 GM Square Body Pickups

LS swaps have seen a wall at the fuel system stage, and it is usually because someone tried to reuse factory hardware that was never built for EFI pressure. The QFS-H881 is a clean sheet hanger with barb fittings designed specifically to make your Square Body swap simple and reliable.

Purpose-Built for 1973 to 1991 Square Body Trucks

Purpose-Built for 1973 to 1991 Square Body Trucks

This hanger is engineered as a direct drop-in for 1973 to 1991 C10, C20, C30, K10, K20, K30, R10, R20, R30, V10, V20, and V30 pickups. The factory tank stays, the modifications stop, and you get a properly calibrated sending unit that reports your fuel level correctly to the cluster.

Barb Fittings With EFI Hose Clamps Included

Barb Fittings With EFI Hose Clamps Included

The H881 uses barb fittings with EFI-rated hose clamps included in the box. If your fuel line setup is built around standard EFI hose rather than AN, this is the hanger that matches your plumbing. It keeps your swap budget in check while still delivering the pressure and flow EFI requires.

No In-Tank Splicing for Clean, Reliable Wiring

No In-Tank Splicing for Clean, Reliable Wiring

Soldered splices submerged in fuel are a ticking clock on any build. The H881 ships with two wiring pigtails standard, one for Walbro-style 255LPH and 340LPH pumps and a plug-and-play adapter for the AC Delco EP381. Zero splicing is required inside the tank, which means zero surprises down the road.

The Clean Sheet Barb Fitting Hanger Built for LS and LT Swaps

When you are planning a swap, your fuel system has to match your engine's demands. The H881 is interchangeable with the Walbro 516 and GSS343G3, giving you a proven drop-in platform. Combine that with a built-in check valve and a calibrated sending unit, and you have a foundation that just works.

Multiple Pump Options to Match Your Horsepower Goals

Multiple Pump Options to Match Your Horsepower Goals

Pump options on the H881 run from a mild 155LPH Quantum pump all the way up to a 535LPH Walbro for serious boosted builds. You can also grab the hanger by itself if you already have a pump picked out. Match your pump to the power level you are actually chasing.

Corrosion Resistant and E85 Compatible

Corrosion Resistant and E85 Compatible

Every H881 hanger is finished with a corrosion-resistant coating, and the submersible high-pressure hose is rated for modern ethanol-infused gasoline and straight E85. Flex fuel builds punish fuel system components hard, and this hanger is engineered to handle the chemistry without breaking down over a season of aggressive driving.

Lifetime Warranty on QFS Components

Lifetime Warranty on QFS Components

Quantum Fuel Systems is American-owned, and we stand behind our hangers, sending units, and Quantum pumps with a lifetime warranty against defects in workmanship and materials. The serialized fuel pump body locks in that coverage. When you buy a QFS product, you are buying peace of mind that lasts.

Frequently Asked Questions

The H881 is a drop-in in-tank fuel pump hanger with a calibrated sending unit and barb-style fittings. It mounts your fuel pump inside the factory Square Body tank and delivers EFI-grade fuel pressure to your LS or LT swap without requiring any tank modifications or custom fabrication work.

The H881 is designed for 1973 to 1991 GM Square Body pickups, including the C10, C20, C30, K10, K20, K30, R10, R20, R30, V10, V20, and V30. If you are swapping an LS, LT, or any EFI motor into one of these trucks, this hanger is built to make the job straightforward.

Barb fittings work with standard EFI rubber hose and hose clamps, which keep the plumbing simple and cost-effective. 6AN fittings use AN threaded hose ends, which some builders prefer for a cleaner look. Both get the job done. Pick the H881 if your build is running a traditional EFI hose.

Yes. The submersible high-pressure hose included with the H881 is fully compatible with modern ethanol-infused pump gasoline as well as straight E85. The corrosion-resistant coating on the hanger body protects against long-term exposure to fuel blends that would chew up a standard hanger inside of a single season.

The H881 hanger is the foundation, but a full LS swap also needs upgraded fuel lines, a proper filter, and an EFI-rated regulator. We offer complete fuel system kits that pair with the H881 so you can order everything together instead of sourcing parts from a half dozen different suppliers.

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