1967 Impala EFI Fuel Tank Kit with 400 LPH Pump
Fitting an LS powerplant in a 1967 Impala often reveals fuel flow limits under load, and this EFI Fuel Tank Kit with 400 LPH Pump supplies capacity for engines up to 750 hp. Its sealed reservoir and integrated sender unit form a single module that installs directly on the B Body frame rails without cutting or welding. Precision contours follow factory underbody geometry to preserve clearance and structural strength, while the Walbro pump holds steady pressure during spirited driving. By housing the pump, sender unit, and vent filter in an enclosed chamber, fuel line connections are reduced and potential leak points are minimized for cleaner installation and simpler upkeep.
Direct Drop In Fit on 1967 Impala B Body Rails
This fuel tank kit installs without any cutting or welding by matching the factory underbody geometry of a 1967 Impala B Body. Each contour is precision stamped to follow frame rail curves and maintain original ground clearance, so custom brackets or trial fittings become unnecessary. By using existing mounting points, alignment errors are reduced and installation time is cut down significantly. Builders also gain a fully reversible solution that preserves the chassis structure and allows a return to stock configuration if desired. Whether you retain a factory V8 or migrate to an LS conversion, this drop in design eliminates the need for fabrication work.
400 LPH Pump Capacity for Engines up to 750 hp
At the heart of this assembly is a 400 LPH Walbro pump rated to support powerplants up to 750 horsepower, ensuring a steady supply under wide open throttle and urban stop-start driving. Its internal design minimizes cavitation risks and maintains consistent pressure throughout spirited runs, helping to prevent lean spots under heavy load. This margin of flow capacity also accommodates future engine upgrades and forced induction setups without the need for a second pump. By delivering uninterrupted fuel flow, throttle response stays sharp and combustion stability is enhanced. The pump's proven track record in performance applications offers reliable service over thousands of miles.
All In Tank Design Minimizing Leak Paths and Clutter
Integrating the pump, sending unit, and vent filter into one sealed module reduces external fittings and potential leak points for a cleaner installation. Precision gaskets at the flange and filler neck create a robust barrier, while dedicated mounting hardware secures each component inside the tank shell. With fewer hose connections, plumbing time is cut and maintenance becomes more straightforward. The sending unit delivers accurate fuel level readings without extra wiring loops, and a single removal plate streamlines service or upgrades. This unified approach not only simplifies troubleshooting but also enhances overall system reliability.
Premium Steel Shell with Corrosion Resistance
The tank shell is fabricated from heavy-gauge steel and treated with a protective coating to withstand repetitive fill and drain cycles without rust formation. Wide mounting straps and robust hardware absorb road shock and vibration without flexing, ensuring the assembly remains stable under all driving conditions. A dedicated vent filter keeps debris out of the system, while a reinforced filler neck guards against impact damage during refueling. High temperature resistant seals and gaskets maintain leak-free performance even when exposed to extreme underbody heat. Material choices prioritize dimensional stability, giving you confidence in daily use and performance driving alike.
Built from heavy gauge steel and precision sealed for reliable service. For the same fuel tank but with a 255LPH pump see our 1967 Impala EFI Fuel Tank kit - 255 LPH Pump.