1958 Chevy Impala LS and LT EFI Fuel Tank Kit with 400 LPH Pump
When you graft an LS or LT powerplant into a 1958 Chevy Impala reliable fuel delivery becomes an immediate priority and the 1958 Impala EFI Fuel Tank Kit - 400 LPH Pump is engineered to meet that need. Built for direct fit installation on B Body chassis it utilizes original filler necks and mounting hardware to simplify your swap work. The 400 LPH pump inside the tank maintains constant pressure for engine builds up to 550 hp and prevents starvation during cornering or highway cruising. Every sending unit gasket and vent filter arrives ready to work with modern EFI harnesses and regulators for accurate level readings and contaminant free flow.
Direct Fit for 1958 Chevy B Body Chassis
This fuel tank kit is designed to secure directly to factory mounting points on Impala, Bel Air, Biscayne, and Del Ray models without any frame modifications. By matching the original filler neck and strap locations, installers can reuse stock hardware and maintain the classic underbody appearance. This precision alignment reduces trial and error during installation and helps keep restoration timelines on track. The result is a seamless integration that preserves both function and vintage style.
In Tank Pump Module Providing Steady Fuel Pressure
At the core of this assembly is a 400 LPH Walbro pump housed inside the tank to deliver constant flow even under heavy cornering or hard acceleration. Placing the pump within the fuel reservoir uses the surrounding liquid for cooling and noise suppression, extending component life. With capacity to support engine outputs beyond 550 hp, the design ensures you never experience starvation during spirited driving or long highway runs. This stability under varying g forces gives drivers confidence that throttle response will remain crisp and reliable.
Integrated EFI Components Ensuring Clean Delivery
Beyond the pump itself, the kit includes a precision sending unit for accurate level readings, a vent filter to block debris, and all gaskets and hardware needed for a leak free seal. These elements are preconfigured for modern EFI harnesses and regulators, which streamlines wiring and reduces troubleshooting after assembly. The comprehensive nature of the kit eliminates parts scouring and guarantees each connection point is optimized for peak performance. As a result, fuel is metered cleanly and consistently from tank to rail, supporting efficient engine management.
Built for reliable performance in your EFI swap this kit delivers steady flow and for a smaller capacity fuel pump Kit at 255 LPH see our 1958 Impala EFI Fuel Tank Kit - 255 LPH Pump.