1968 Impala EFI Fuel Tank Kit with 400 LPH Pump
If you are fitting an LS engine into a 1968 Impala and need rock solid fuel pressure under sustained throttle, the 1968 Impala EFI Fuel Tank kit - 400 LPH Pump takes on that duty with precision. Stamped steel shell follows the exact B Body frame rail contours to preserve factory mounting points and install without floor pan cutting. Equipped with a Walbro 400 liter per hour pump integrated with sender and filter inside the tank, it delivers consistent fuel delivery during spirited driving. All required straps, filler neck and vent filter are included for a one session swap that brings modern injection reliability to your classic Impala.
Precision Stamped Steel Shell for Chassis Alignment
The tank is formed from heavy gauge steel that matches the contours of the 1968 B Body frame rails to preserve all original mounting points. Precision stamping eliminates the need for any floor pan cutting, delivering a direct fit that maintains structural integrity and alignment. Welded seams are fully sealed to prevent leaks and resist rust from road moisture or salt. This tailored approach ensures the assembly sits flush, reducing vibration and noise for a quieter ride.
Integrated Fuel Module Streamlines Delivery and Monitoring
By combining the pump, sending unit and filter sock into a single module, installation complexity is greatly reduced. The sending mechanism is positioned at an optimal height to deliver accurate fuel level readings under all driving conditions. The sock filter captures debris before it can enter the pump, extending service intervals and protecting critical components. Corrosion resistant connectors secure reliable signal transmission between the tank and gauge. This unified design simplifies maintenance and offers clear access to vital subsystems without disassembly of the entire tank.
High Flow 400 LPH Pump for Elevated Performance
The Walbro 400 liter per hour unit is engineered to handle the demands of both boosted and naturally aspirated LS conversions up to 750 horsepower. Mounted inside the reservoir, the pump is cooled by surrounding fuel which helps dissipate heat and extends its service life under sustained load. This capacity prevents pressure drops and ensures smooth throttle response during spirited runs or long highway stretches. Consistent flow means the engine receives the exact volume it needs at all rpm levels, reducing the risk of lean conditions under heavy load.
Comprehensive Kit for Direct Tank Swap in One Session
This kit includes every necessary component to remove the original tank and install the new assembly without additional parts. The package features straps, a filler neck, a vent filter, gaskets and all mounting hardware tuned to the Impala B Body chassis. Preassembled brackets align precisely with factory holes to guide installers through each step from fuel line disconnect to final torque checks. Clear instructions accompany the components for a do it yourself swap that restores modern injection performance in a single workday.
Count on MuscleRods for a precise fit and consistent pressure under every driving condition. For the same but with the smaller 255 LPH pump see our 1968 Impala EFI Fuel Tank kit - 255 LPH Pump.