1958 Chevy Impala EFI Fuel Tank Kit 400 LPH Pump for LS and LT Swaps
If you are swapping LS or LT power into a 1958 Chevy Impala, the 1958 Impala EFI Fuel Tank Kit with 400 LPH Pump provides the reliable fuel delivery your build requires. Designed to bolt onto factory B Body frame points in Bel Air, Biscayne, Del Ray and Impala models without trimming or drilling, it keeps the stock underbody geometry intact. An in tank 400 liter per hour Walbro pump guarantees consistent fuel pressure for setups over 550 hp, and the kit includes a sending unit, vent filter, filler neck, gaskets, straps and all mounting hardware for direct integration with stock or aftermarket EFI regulators.
Installation and Fitment
The 1958 Impala EFI Fuel Tank Kit features a direct-fit design for 1958 Impala, Bel Air, Biscayne and Del Ray models, allowing enthusiasts to replace the factory tank without cutting or welding the floor pan. By integrating with MuscleRods mounts, this kit ensures proper engine placement and drivetrain angles, preserving the geometry that underpins reliable acceleration and smooth steering response. Every bracket and mounting point matches the original chassis rails, enabling a straightforward bolt-in installation that retains the classic underbody appearance while accommodating modern EFI upgrades.
Fuel Delivery Performance
At the heart of this kit sits a 400 LPH Walbro fuel pump engineered to support applications exceeding 550 horsepower. Placed inside the tank, the pump module delivers steady pressure and consistent flow under the most demanding conditions, from highway cruising to spirited track runs. This setup minimizes the risk of fuel starvation during hard cornering or rapid throttle changes, ensuring the engine receives precise fuel metering for swift throttle response. As a result, drivers experience improved fuel atomization, tighter control of air fuel ratios and enhanced EFI efficiency that meets modern performance standards.
Construction and Quality Assurance
Crafted in the United States under strict quality control protocols, this fuel tank kit combines robust materials with meticulous manufacturing methods to resist corrosion and vibration. The module accepts original sending units and filler necks, preserving gauge accuracy and maintaining the stock refill procedure. It also provides seamless compatibility with Electronic Fuel Injection upgrades, ensuring that wiring harnesses, hoses and fittings integrate without the need for aftermarket adapters. From professional restorations to custom hot rod builds, this kit delivers reliable, long term performance for LS and LT engine installations in classic 1958 Chevrolet chassis.
For a smaller capacity fuel pump Kit at 255 LPH, consider our 1958 Impala EFI Fuel Tank Kit - 255 LPH Pump. Its direct fit design ensures consistent flow and stock chassis mounting on classic 1958 B Body models.