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1963-1966 Chevy Truck Frame Mount Gas Tank - Side Fill - 255 LPH Pump


1963-1966 Chevy Truck Frame Mount Gas Tank - Side Fill - 255 LPH Pump
Purchase 1963-1966 Chevy Truck Frame Mount Gas Tank - Side Fill - 255 LPH Pump
  • 1963-1966 Chevy Truck Frame Mount Gas Tank - Side Fill - 255 LPH Pump

  • $629.00

    SKU: 120-6681-04

1963-1966 Chevy Truck LS Fuel Tank with 18 Gallon Side Fill

Internal baffling and sturdy steel construction ensure uninterrupted fuel delivery under hard braking and cornering on LS engines, while the integrated Walbro pump maintains precise EFI support for outputs up to 550 HP in 340 LPH flow. The 18-gallon capacity extends range with fewer stops and the convenient side fill neck simplifies refueling beneath the rear frame rails, while the compact profile fits neatly in tight chassis spaces.

340 LPH Fuel Pump and Fitting Kit for LS Swap on 1991-2005 GM Models

When installing an LS engine into a 1991 to 2005 GM chassis every builder faces the challenge of maintaining steady fuel pressure and the 340 LPH Fuel Pump and Fitting Kit provides a solid solution. It features a 340 liter per hour pump paired with precision fittings that streamline connections both at the tank and along the supply line. The included adapters and bulkhead hardware help reduce installation time and prevent leaks. With compatibility for factory outlets and standard injector feeds this kit supports consistent engine performance under dynamic load conditions.

Precision Underbody Mounting for Classic Chevy Frames

The 18 gallon tank has a low profile form measuring 32.25 by 20.5 by 9.75 inches that slides beneath the rear rails without sacrificing ground clearance. Its outer flange features bolt holes that match the original Chevy truck frame so installers can attach without drilling or cutting. This factory aligned mounting keeps the fuel reservoir and strap hardware close to the chassis rails, limiting movement and reducing noise from vibration. Retaining the classic underbody profile ensures the truck's stance remains authentic while adding modern fuel capacity. Installers appreciate how the precise fitment streamlines the process and avoids costly frame modifications.

Integrated Walbro Pump and Sending Unit for Steady EFI Performance

Inside the tank resides a Walbro pump rated at 255 liters per hour, capable of supporting engines up to 550 horsepower without loss of flow. Paired with a 0 to 30 ohm sending unit calibrated to match GM gauge clusters, the assembly provides reliable pressure and accurate level feedback in one package. Bulkhead fittings isolate the electrical and fuel connections from the main body, simplifying plumbing and wiring runs during the swap. This integrated module eliminates the need for external pump mounts or separate sending units, cutting installation time. By unifying these key elements, the setup delivers consistent fueling essential for responsive throttle control and clean combustion in LS systems.

Advanced Internal Baffling to Prevent Fuel Starvation

A series of internal partitions compartmentalizes the 18 gallon reservoir to dampen liquid movement during cornering, acceleration, and sudden stops. This baffling keeps the pump inlet submerged at all times, guarding against air ingestion that can lead to hesitation or stalling. The tank's chambers also reduce slosh noise, resulting in quieter operation under load. For restoration builds used in towing or spirited driving, this design ensures continuous fuel supply even with low tank levels. The multi chamber layout also extends pump life by maintaining constant submersion and minimizing aeration.

Side Fill Neck Placement for Bed Preservation and Convenience

Relocating the filler neck to the driver side frame rail moves refueling away from the bed floor, preserving the utility space and original sheet metal. This orientation aligns with standard pump nozzles at service stations, so drivers avoid bending hoses or adapters when filling. The side access point integrates seamlessly into the frame, maintaining a clean underbody appearance. This practical design choice eliminates the need for bed cuts or deck fillers, protecting the truck's restored cargo area. Overall, it contributes to a user friendly refuel process without compromising the truck's classic look.

Experience dependable fuel delivery and straightforward installation for your LS swap.

Specifications

  • SKU: 120-6681-04
  • Swap Engine: LS
  • Brand: Muscle Rods
  • What's Included:
    • Walbro 255 LPH fuel pump (up to 550 HP)
    • 0-30 Ohm sending unit for factory gauges
    • Internally baffled to prevent fuel starvation during braking and turns
    • Bed filler neck
    • 18 Gallon capacity
    • Measures 32-1/4" 20-1/2" 9-3/4" (including the mounting flange)

Key Features

  • EFI-ready design for electronic fuel injection systems
  • Walbro 255 LPH pump supports engines up to 550 HP
  • Internally baffled system prevents fuel starvation during braking and turning
  • 18-gallon capacity reduces refueling frequency
  • Side fill neck enables convenient refueling access
  • Compact 32-1/4x20-1/2x9-3/4 in size fits under frame rails

Benefits

  • Seamlessly integrates with EFI for smoother engine performance
  • Delivers reliable high-flow fueling for engines up to 550 HP
  • Ensures continuous fuel flow during sharp turns and braking
  • Provides extended range with 18-gallon capacity
  • Simplifies refueling with easy side-access filler
  • Compact design fits neatly under rear frame rails

This Item Assigned to Category and Also Fits:

Description

340 LPH Fuel Pump and Fitting Kit for LS Swap on 1991-2005 GM Models

When installing an LS engine into a 1991 to 2005 GM chassis every builder faces the challenge of maintaining steady fuel pressure and the 340 LPH Fuel Pump and Fitting Kit provides a solid solution. It features a 340 liter per hour pump paired with precision fittings that streamline connections both at the tank and along the supply line. The included adapters and bulkhead hardware help reduce installation time and prevent leaks. With compatibility for factory outlets and standard injector feeds this kit supports consistent engine performance under dynamic load conditions.

Precision Underbody Mounting for Classic Chevy Frames

The 18 gallon tank has a low profile form measuring 32.25 by 20.5 by 9.75 inches that slides beneath the rear rails without sacrificing ground clearance. Its outer flange features bolt holes that match the original Chevy truck frame so installers can attach without drilling or cutting. This factory aligned mounting keeps the fuel reservoir and strap hardware close to the chassis rails, limiting movement and reducing noise from vibration. Retaining the classic underbody profile ensures the truck's stance remains authentic while adding modern fuel capacity. Installers appreciate how the precise fitment streamlines the process and avoids costly frame modifications.

Integrated Walbro Pump and Sending Unit for Steady EFI Performance

Inside the tank resides a Walbro pump rated at 255 liters per hour, capable of supporting engines up to 550 horsepower without loss of flow. Paired with a 0 to 30 ohm sending unit calibrated to match GM gauge clusters, the assembly provides reliable pressure and accurate level feedback in one package. Bulkhead fittings isolate the electrical and fuel connections from the main body, simplifying plumbing and wiring runs during the swap. This integrated module eliminates the need for external pump mounts or separate sending units, cutting installation time. By unifying these key elements, the setup delivers consistent fueling essential for responsive throttle control and clean combustion in LS systems.

Advanced Internal Baffling to Prevent Fuel Starvation

A series of internal partitions compartmentalizes the 18 gallon reservoir to dampen liquid movement during cornering, acceleration, and sudden stops. This baffling keeps the pump inlet submerged at all times, guarding against air ingestion that can lead to hesitation or stalling. The tank's chambers also reduce slosh noise, resulting in quieter operation under load. For restoration builds used in towing or spirited driving, this design ensures continuous fuel supply even with low tank levels. The multi chamber layout also extends pump life by maintaining constant submersion and minimizing aeration.

Side Fill Neck Placement for Bed Preservation and Convenience

Relocating the filler neck to the driver side frame rail moves refueling away from the bed floor, preserving the utility space and original sheet metal. This orientation aligns with standard pump nozzles at service stations, so drivers avoid bending hoses or adapters when filling. The side access point integrates seamlessly into the frame, maintaining a clean underbody appearance. This practical design choice eliminates the need for bed cuts or deck fillers, protecting the truck's restored cargo area. Overall, it contributes to a user friendly refuel process without compromising the truck's classic look.

Experience dependable fuel delivery and straightforward installation for your LS swap.

Features
  • EFI-ready design for electronic fuel injection systems
  • Walbro 255 LPH pump supports engines up to 550 HP
  • Internally baffled system prevents fuel starvation during braking and turning
  • 18-gallon capacity reduces refueling frequency
  • Side fill neck enables convenient refueling access
  • Compact 32-1/4x20-1/2x9-3/4 in size fits under frame rails
Benefits
  • Seamlessly integrates with EFI for smoother engine performance
  • Delivers reliable high-flow fueling for engines up to 550 HP
  • Ensures continuous fuel flow during sharp turns and braking
  • Provides extended range with 18-gallon capacity
  • Simplifies refueling with easy side-access filler
  • Compact design fits neatly under rear frame rails
What's Included
  • Walbro 255 LPH fuel pump (up to 550 HP)
  • 0-30 Ohm sending unit for factory gauges
  • Internally baffled to prevent fuel starvation during braking and turns
  • Bed filler neck
  • 18 Gallon capacity
  • Measures 32-1/4" 20-1/2" 9-3/4" (including the mounting flange)
Specifications
  • SKU: 120-6681-04
  • Brand: Muscle Rods
  • Swap Engine: LS