1961-1964 Chevy Impala B-Body LS and LT Fuel Tank Kit with 400 LPH Pump
For enthusiasts swapping LS or LT engines into a 1961 to 1964 Chevy Impala B-Body, the 1961 to 1964 Impala EFI Fuel Tank Kit with 400 LPH Pump ensures dependable flow whether cruising or under load. A pump mounted inside the tank module delivers 400 liters per hour handling supercharged engines or powerplants above 550 horsepower. The unit contours to the factory underfloor well and secures with original strap and filler neck points preserving sheet metal and trunk clearance. A GM style sending unit reproduces factory resistance values and float arm geometry to provide accurate gauge readings without calibration. Complete kit contents include filler neck, vent filter, straps, gaskets and hardware, all tailored for quick installation on Bel Air, Biscayne, Del Ray and Impala models.
Tailor-Made Fitment
This fuel tank kit is crafted specifically for 1961 to 1964 Bel Air, Biscayne, Del Ray and Impala chassis. Every contour matches the original floor pan, ensuring an exact fit without modification to sheet metal or frame rails. The kit's design retains factory ride height and balance, preserving correct weight distribution front to rear. By focusing on these classic GM body styles, the system delivers a seamless restoration experience that respects the car's heritage while preparing it for modern powertrains.
Robust Pump Module
At the core of the assembly is a 400 LPH Walbro pump housed in an in-tank module. This arrangement reduces noise, shields the unit from external hazards and maintains consistent fuel pressure under hard acceleration. With capacity to support supercharged or engines exceeding 550 horsepower, the pump's internal components are engineered for extended duty cycles in high-stress applications. Heavy gauge wiring and corrosion-resistant fittings ensure reliability even in hot environments, while the integral filter screen prevents debris from entering the fuel lines.
Seamless Integration
The kit includes a precision sending unit for real-time fuel level data, compatible with both analog gauges and modern electronic clusters. All hoses, clamps and fittings are supplied, so installation proceeds without sourcing additional parts. Designed for LS and LT motor configurations, it integrates with MuscleRods mounts to maintain correct engine placement and drivetrain angles. This partnership guarantees that fuel lines and vent tubes align properly with chassis brackets, reducing installation time and eliminating guesswork. In sum, the complete package delivers a professional-grade solution for classic Impala restorations embracing EFI technology.
This fuel tank delivers precise 400 liter-per-hour flow and includes tank module, sending unit, filler neck and hardware for LS or LT powertrains in 1961 to 1964 Bel Air, Biscayne, Del Ray and Impala chassis. For a smaller capacity fuel pump Kit at 255 LPH, consider our 1961-1964 Impala EFI Fuel Tank Kit - 255 LPH Pump.