1958 Chevy Impala LS EFI Fuel Tank Kit with 255 LPH Pump
When adapting an LS powerplant to a 1958 Chevy Impala B-Body chassis, securing a dependable fuel source is essential and this 1958 Impala EFI Fuel Tank Kit - 255 LPH Pump steers clear of clearance issues by nesting between the frame rails. It houses a reliable Walbro 255 LPH pump module inside the steel shell to maintain constant pressure and avoid vapor lock under heavy load or high temperature conditions. Mounting bosses line up with original brackets and the matched straps gaskets and fittings let installers complete the setup without trimming or extra parts. With support for engines up to 550 horsepower this solution sustains consistent flow for crisp throttle response and smooth power delivery on road or track.
Precision Fitment for 1958 Chevy Impala Frame Rails
The tank body is engineered to slip neatly between the original frame rails of a 1958 Chevy Impala B Body chassis without trimming or rail modifications. Factory mounting bosses align exactly with OE bracket locations, preserving ground clearance and preventing interference with suspension arms or exhaust routing. Maintaining the stock underbody profile also keeps rear pulley and belt clearances in spec, which is critical for reliable LS engine operation. By mirroring the factory layout, this design upholds the Impala's handling balance and allows installers to complete fitment with confidence and minimal downtime.
Immersed Pump Module for Stable Fuel Delivery
The integrated pump module encloses a 255 LPH Walbro unit entirely within the steel tank shell to ensure continuous immersion in fuel, which keeps the motor cool and virtually eliminates vapor lock risk under sustained load or hot ambient conditions. A fine mesh filter keeps debris away from the impeller, while a sealed single-plug connector simplifies wiring and guards against leaks. Submerging the pump also dampens operational noise and smooths pressure pulses, providing the engine control unit with a consistent flow signal. This reliable delivery supports engines up to 550 horsepower, delivering crisp throttle response from idle all the way to redline.
All Inclusive Kit Streamlining LS Fuel System Conversion
This comprehensive kit bundles every component needed for an EFI upgrade, including the pump assembly, in tank sending unit, filler neck, vent filter, mounting straps, gaskets and all hardware. Each part is pre-matched to the tank profile to eliminate fitment guesswork and avoid extra trips for missing items. Factory style hose fittings and clear access to mounting bosses make routing fuel lines and electrical connectors straightforward, reducing potential errors. By uniting all critical pieces in one package, this kit keeps your project on schedule and ensures a hassle-free path to a dependable LS swap fuel system.
This kit delivers reliable performance under demanding conditions. To step up to a Larger capacity fuel pump Kit at 400 LPH see our 1958 Impala EFI Fuel Tank Kit - 400 LPH Pump.