1967 Chevrolet Impala EFI Fuel Tank Kit with 400 LPH Pump
Taming the fuel demands of an LS conversion in a 1967 Impala can expose the limits of a stock tank under hard acceleration so this EFI fuel tank kit with 400 LPH pump steps in to feed up to 750 hp builds. The sealed steel reservoir drops into the factory underbody rails without any cutting or welding and houses the pump, sender and vent filter in a single module. Designers matched original frame contours to preserve ground clearance and chassis strength while reducing installation time and leak paths. With steady flow from the Walbro unit during daily cruising or spirited corner exits throttle response stays sharp and upkeep remains straightforward.
Precision Fitment on 1967 Impala B Body Rails
The tank kit is stamped to match the original frame rail curves of a 1967 Impala so it slides into place without cutting or welding. Each contour maintains existing ground clearance and avoids interference with suspension or brake components, preserving ride height and chassis balance. By using factory mounting points the design eliminates custom bracket fabrication and greatly reduces alignment checks. Installers benefit from a fully reversible solution that retains the classic underbody appearance while supporting modern EFI setups. This attention to original geometry also safeguards structural strength along the B Body frame.
Integrated In Tank Assembly Minimizing Leak Paths
Housing the fuel pump, sending unit and vent filter within a sealed module cuts external plumbing to the essentials and lowers the potential for fuel seepage. Precision gaskets at the module flange and filler neck create a robust seal that endures repeated fill cycles. A single access plate simplifies removal during maintenance and removes the need to drop the entire tank for routine service. With fewer hose connections, installation time shrinks and system troubleshooting becomes more straightforward. The compact arrangement ensures all critical components stay protected inside the reservoir shell.
400 LPH Walbro Pump Performance for Engines up to 750 hp
At the heart of this kit lies a 400 liter per hour Walbro unit engineered for reliable flow in builds up to 750 horsepower. Its internal bypass and pressure regulator design prevent cavitation at high rpm, maintaining consistent fuel pressure during full throttle runs and rapid load transitions. This reserve capacity also accommodates future power upgrades or forced induction without adding a secondary pump. Drivers will notice sharper throttle response and a stable air fuel ratio under load, whether cruising or powering through corners. The proven track record of this pump in performance applications offers confidence over extended road miles.
Durable Steel Shell with Enhanced Corrosion Protection
The reservoir is formed from heavy gauge steel treated with a protective coating to resist rust and chemical attack over time. Wide mounting straps and high grade hardware secure the tank under the car, absorbing road shock and vibration without flex or fatigue. A reinforced filler neck guards against impact during refueling and aligns precisely with the factory opening for a clean fit. Heat resistant seals and gaskets maintain a leak free barrier even in extreme underbody temperatures. Together these material choices and assembly methods ensure dependable service life and consistent operation.
This fuel tank delivers consistent flow and fits the original mounting points for straightforward installation. For the same fuel tank but with a 255LPH pump see our 1967 Impala EFI Fuel Tank kit - 255 LPH Pump.