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EFI Sending Unit and In-Tank Fuel Pump for G-Body


EFI Sending Unit and In-Tank Fuel Pump for G-Body
Purchase EFI Sending Unit and In-Tank Fuel Pump for G-Body
  • EFI Sending Unit and In-Tank Fuel Pump for G-Body

  • $299.00

    SKU: 207-6601-00

550hp-capable LS Fuel Module for G-Body Tanks

Leveraging a Walbro 255 lph pump and precision 3/8 inch feed line sending unit, this LS EFI module transforms your stock G-Body tank into a reliable fuel delivery system rated for 550 hp. Direct fitment on Grand National, Monte Carlo, Cutlass and G8 tanks ensures accurate gauge readings and consistent pressure with minimal modifications for a quick, smooth installation.

LS EFI Sending Unit and In-Tank Fuel Pump for G-Body

For G-Body owners planning an LS EFI conversion, reliable in tank fuel management starts with the EFI sending unit and pump designed for your tank. This EFI sending unit and in tank pump package pairs a 3/8 inch sender calibrated to your factory gauge with a Walbro 255 liter per hour pump to maintain accurate fuel levels and consistent pressure for engines up to 550 horsepower. Installation taps into the original tank flange and seal interface, requiring only a few pilot holes to complete the swap. By integrating with stock tank hardware, it preserves the factory appearance while providing dependable EFI performance.

Precision 3/8 Inch Sending Unit Ensures Reliable Gauge Accuracy

The 3/8 inch feed-line sending unit is engineered to match the original float mechanism and resistance curve of your G-Body gauge, delivering consistent readings without calibration fuss. Its snug fit minimizes slop and vibration, so the needle remains steady even during spirited cornering. By tapping directly into the existing tank pickup, this unit eliminates extra adapters and leak points, ensuring long-term reliability. Precision machining of the sender housing keeps electrical contacts secure, translating to accurate fuel level reporting every time you turn the key.

High-Flow Walbro 255lph Pump Maintains Steady Pressure

At the heart of this assembly is the proven Walbro 255lph pump, selected to support LS engines up to 550 horsepower under heavy load. Its high-flow design prevents pressure drop during rapid throttle changes, eliminating lean spots that can stress injectors and engine components. Tight internal tolerances and a self priming rotor enable fast system fill after shutdown, reducing crank time on cold starts. Rugged construction resists wear from ethanol blends, so you can expect extended service intervals even with today's fuel formulations.

Direct Fitment for GM G-Body Tanks Simplifies Installation

This EFI sending unit and in-tank pump kit mirrors the factory GM flange and O-ring pattern for direct compatibility with Grand National, Monte Carlo, Cutlass and G8 tanks. Only a handful of pilot holes are needed to secure the assembly, so you avoid cutting custom openings or welding. By reusing original mounting points and hardware, installers preserve tank integrity and the stock appearance. The straightforward swap process means you can upgrade to modern EFI capability in just a few hours without complex frame modifications.

Count on precise fuel management and reliable operation; for this related FLT product see our Fuel Fitting Kit for G-Body.

Specifications

  • SKU: 207-6601-00
  • Swap Engine: LS
  • Body Type: G-Body
  • Brand: Muscle Rods
  • What's Included:
    • 3/8" feed-line equipped sending unit
    • Walbro 255lph fuel pump

Key Features

  • Converts factory G-Body fuel tank to in-tank EFI setup
  • High-quality 3/8" feed-line sending unit compatible with stock gauge
  • Walbro 255lph fuel pump supports up to 550hp
  • Direct compatibility with GM G-Body tanks including Grand National, Monte Carlo, Cutlass, G8
  • Requires minimal modifications for straightforward installation
  • Ensures reliable high-pressure fuel delivery under load

Benefits

  • Enable modern EFI performance without replacing your stock fuel tank
  • Maintain accurate fuel readings with your stock gauge
  • Support up to 550hp with consistent high-flow fuel delivery
  • Avoid fitment issues with direct G-Body model compatibility
  • Achieve a quick, hassle-free installation with minimal modifications
  • Maintain consistent high-pressure fuel flow under demanding loads

This Item Assigned to Category and Also Fits:

Description

LS EFI Sending Unit and In-Tank Fuel Pump for G-Body

For G-Body owners planning an LS EFI conversion, reliable in tank fuel management starts with the EFI sending unit and pump designed for your tank. This EFI sending unit and in tank pump package pairs a 3/8 inch sender calibrated to your factory gauge with a Walbro 255 liter per hour pump to maintain accurate fuel levels and consistent pressure for engines up to 550 horsepower. Installation taps into the original tank flange and seal interface, requiring only a few pilot holes to complete the swap. By integrating with stock tank hardware, it preserves the factory appearance while providing dependable EFI performance.

Precision 3/8 Inch Sending Unit Ensures Reliable Gauge Accuracy

The 3/8 inch feed-line sending unit is engineered to match the original float mechanism and resistance curve of your G-Body gauge, delivering consistent readings without calibration fuss. Its snug fit minimizes slop and vibration, so the needle remains steady even during spirited cornering. By tapping directly into the existing tank pickup, this unit eliminates extra adapters and leak points, ensuring long-term reliability. Precision machining of the sender housing keeps electrical contacts secure, translating to accurate fuel level reporting every time you turn the key.

High-Flow Walbro 255lph Pump Maintains Steady Pressure

At the heart of this assembly is the proven Walbro 255lph pump, selected to support LS engines up to 550 horsepower under heavy load. Its high-flow design prevents pressure drop during rapid throttle changes, eliminating lean spots that can stress injectors and engine components. Tight internal tolerances and a self priming rotor enable fast system fill after shutdown, reducing crank time on cold starts. Rugged construction resists wear from ethanol blends, so you can expect extended service intervals even with today's fuel formulations.

Direct Fitment for GM G-Body Tanks Simplifies Installation

This EFI sending unit and in-tank pump kit mirrors the factory GM flange and O-ring pattern for direct compatibility with Grand National, Monte Carlo, Cutlass and G8 tanks. Only a handful of pilot holes are needed to secure the assembly, so you avoid cutting custom openings or welding. By reusing original mounting points and hardware, installers preserve tank integrity and the stock appearance. The straightforward swap process means you can upgrade to modern EFI capability in just a few hours without complex frame modifications.

Count on precise fuel management and reliable operation; for this related FLT product see our Fuel Fitting Kit for G-Body.

Features
  • Converts factory G-Body fuel tank to in-tank EFI setup
  • High-quality 3/8" feed-line sending unit compatible with stock gauge
  • Walbro 255lph fuel pump supports up to 550hp
  • Direct compatibility with GM G-Body tanks including Grand National, Monte Carlo, Cutlass, G8
  • Requires minimal modifications for straightforward installation
  • Ensures reliable high-pressure fuel delivery under load
Benefits
  • Enable modern EFI performance without replacing your stock fuel tank
  • Maintain accurate fuel readings with your stock gauge
  • Support up to 550hp with consistent high-flow fuel delivery
  • Avoid fitment issues with direct G-Body model compatibility
  • Achieve a quick, hassle-free installation with minimal modifications
  • Maintain consistent high-pressure fuel flow under demanding loads
What's Included
  • 3/8" feed-line equipped sending unit
  • Walbro 255lph fuel pump
Specifications
  • SKU: 207-6601-00
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: G-Body