EFI Fuel Tank Kit for 1969-1970 Impala with 400 LPH Pump
When fitting an LS motor into a 1969 and 1970 Impala body, stable fuel delivery under hard acceleration becomes critical, and this EFI Fuel Tank kit with a 400 LPH Walbro pump delivers a steady supply for engines that demand up to 750 horsepower. Tailored to the B Body undercarriage, the reservoir sits 0.75 inches deeper and 5 inches shorter than stock to follow factory crossmember locations and bolt in without trimming. Constructed from galvanized steel and finished in durable powder coat, it resists corrosion and wear, while the kit includes the in tank pump module, sending unit, tank straps, filler neck, vent filter, gaskets and installation hardware in a complete hardware kit to streamline every LS swap.
Optimized Fuel Delivery
The 1969–1970 Impala EFI Fuel Tank kit includes a 400 LPH Walbro pump capable of supplying fuel to engines rated up to 750 hp. This capacity exceeds the demands of most EFI setups, ensuring stable fuel pressure under heavy load or rapid throttle changes. The deeper reservoir lowers the pickup point for consistent feed even during hard acceleration. Its shorter profile enhances clearance behind rear axle mounts without sacrificing volume.
Precision Fitment for B-Body Platforms
Designed exclusively for 1969–1970 Impala B-Body chassis, this tank replaces the original unit with no cutting, welding or frame alterations. It interfaces directly with MuscleRods mounting brackets to preserve correct engine positioning and drivetrain angles, a critical factor for transmission alignment and driveshaft vibration. The kit arrives with all required gaskets and hardware for a plug-and-play experience.
Corrosion Resistance and Finish
Constructed from fully galvanized steel, the tank resists rust and maintains structural integrity in harsh environments. A durable powder coat finish further protects the exterior surface from abrasion and fluid exposure. Internal surfaces are sealed to prevent evaporation and reduce condensation. Each unit undergoes a leakproof test before shipping, offering confidence in long-term reliability.
To complete your same fuel tank but with a 255LPH pump, consider our 1969-1970 Impala EFI Fuel Tank kit - 255 LPH Pump.