LS and LT EFI Fuel Tank Kit with 400 LPH Pump for 1958 Chevy Impala B-Body
When finishing a classic 1958 Impala swap with LS or LT power, ensuring reliable fuel delivery is essential and this 1958 Impala EFI Fuel Tank Kit with 400 LPH Pump is designed to mount directly to the original B-Body frame locations without modification. It retains the stock filler neck position to preserve underbody clearance while simplifying hose and wiring runs. Housing the Walbro pump inside the tank reduces noise and heat soak, delivering steady flow even under 550 hp loads and aggressive cornering. Installation is simplified by the inclusion of a calibrated sending unit, vent filter and all necessary hardware for modern EFI regulators.
Precision Direct-Fit Mounting Geometry
Engineered to mate exactly to the factory frame points on 1958 Impala chassis, the tank holds the original fill neck in its stock location and preserves underbody clearance. Bolts align with Bel Air, Biscayne and Del Ray models without drilling or trimming. Installers appreciate the elimination of mock ups and adapters, as line runs and electrical harnesses take shape without interference. Such exact positioning also guards against wiring chafe and fitting stress for a seamless installation experience.
In Tank Walbro Pump Thermal Management
Placing the 400 LPH Walbro pump fully inside the tank immerses it in fuel, acting as a natural cooling medium that limits heat soak and extends component life. Surrounding liquid also muffles operational noise and guards against vapor lock during hard cornering or prolonged highway runs. Fuel pressure remains steady under 550 hp demands, so sudden throttle inputs trigger an immediate delivery response. Drivers gain peace of mind knowing flow rate stays constant under all road conditions.
Comprehensive EFI Fuel Delivery Integration
Rather than tracking down separate parts, every necessary component arrives ready to assemble, including the calibrated sending unit, vent filter, tank straps, gaskets and all mounting hardware. Pre engineered connections simplify fuel line and regulator installations, so technicians avoid guesswork and extra trips to the store. The vent filter traps airborne contaminants and coarse debris, preserving the integrity of sensitive sensors. Final routing yields a tidy underbody look and a system primed for tuning.
American Craftsmanship for Seasoned Durability
Manufactured in the United States under strict quality checks, the tank shell and pump module undergo precise welding and leak testing to meet demanding performance standards. Corrosion resistant materials stand up to modern ethanol blended fuels and temperature swings across seasons. Critical hardware receives thorough inspection to ensure clamp and strap reliability under vibration and load. Resulting assembly delivers dependable fueling support for high output LS and LT installations over many miles.
This MuscleRods kit delivers reliable fueling support for LS and LT installations. To complement this kit with a Smaller capacity fuel pump Kit at 255 LPH see our 1958 Impala EFI Fuel Tank Kit - 255 LPH Pump.