1958 Chevy Impala EFI Fuel Tank Kit with 400 LPH Pump for LS and LT
When planning an LS or LT engine installation in a vintage 1958 Impala chassis the fuel supply system becomes critical and this 1958 Impala EFI Fuel Tank Kit with 400 LPH Pump addresses that need with precision. It mounts directly to the original B Body frame points and retains the stock filler neck location to preserve underbody clearance while simplifying routing of hoses and wiring. Installation is further streamlined by the inclusion of a precision sending unit, vent filter, gaskets and all required hardware calibrated for modern EFI regulators. Quality construction in the United States ensures lasting performance under sustained loads up to 550 horsepower and the in-tank pump arrangement delivers consistent fuel flow during hard cornering or extended highway driving.
Exact B Body Chassis Alignment
This fuel tank kit bolts precisely to the factory B Body frame points on 1958 Impala, Bel Air, Biscayne, and Del Ray models without drilling or trimming. By matching the original filler neck and mount locations, it preserves underbody clearance and maintains the classic profile. Installers benefit from plug-and-play fitment that eliminates time spent trial fitting or fabricating adapters. The precise alignment also ensures proper fuel line and wiring routing, reducing the risk of chafing or kinks under the vehicle.
In Tank 400 LPH Pump for Consistent Flow
Housing the 400 LPH Walbro pump inside the tank places it directly in the fuel supply, where the surrounding liquid acts as a natural heat sink. This arrangement lowers operating temperature, dampens noise, and prevents vapor lock during high stress cornering or sustained highway speeds. With capacity to support engine output up to 550 hp, the pump module delivers steady pressure and rapid response at wide open throttle. The result is reliable fueling under aggressive acceleration and a quiet operation that keeps cabin noise to a minimum.
Complete EFI Component Integration
Rather than sourcing parts piecemeal, this kit arrives with a sending unit, vent filter, gaskets, straps, filler neck, and all required hardware calibrated for modern EFI regulators. Each vent filter traps airborne and road debris to protect sensitive connections and maintain accurate fuel level readings. Preconfigured gaskets and fittings streamline assembly of lines and electrical harnesses, so installers avoid guesswork and extra trips to the parts store. The comprehensive packaging delivers a clean underbody layout and a system that’s ready to tune once the engine is in place.
United States Crafted for Lasting Reliability
Manufactured under rigorous quality control in the United States, the tank shell and internal components undergo precise welding and leak testing to meet exacting performance standards. Corrosion-resistant materials and durable hardware withstand exposure to modern fuel additives and temperature swings over many seasons. This stringent process delivers a rugged assembly capable of supporting high output LS and LT engines with minimal maintenance. Owners gain confidence in consistent fuel delivery, long service life, and a product built to endure demanding driving conditions.
Enjoy reliable fuel delivery with each drive. For a smaller capacity fuel pump Kit at 255 LPH see our 1958 Impala EFI Fuel Tank Kit - 255 LPH Pump.