1971-72 Chevy El Camino LS & LT Swap EFI Fuel Tank Kit 400 LPH Pump
Fitting an LS or LT mill into a Chevy El Camino from 1971 to 1972 demands a fuel system that holds steady under hard acceleration and this EFI fuel tank kit equipped with a 400 LPH pump answers that need by supplying ample flow for engines up to 550 horsepower without lean spots. It mounts directly to the original underbody rails using factory bracket locations for the tank, filler neck, straps and gaskets so there is no cutting or welding required. The steel shell resists corrosion while internal baffles and a precision vent filter control slosh and maintain consistent pressure even during spirited street drives or track runs.
Seamless Bolt in Integration for 1971 to 1972 A Body El Camino
This EFI fuel tank kit aligns precisely with the original underbody rails and bracket locations on 1971 to 1972 El Camino A Body chassis, so installers never need to cut or weld sheet metal. By matching the factory mounting points for the tank, filler neck, straps and gaskets, it preserves the structural integrity of the frame and maintains the vehicle's appearance. Clear fitment cues and dimensional accuracy reduce trial and error, allowing even a first time swap builder to secure the assembly in minutes. The bolt in design also keeps the underbody layout tidy, leaving space for exhaust routing and chassis stiffening components without interference.
400 LPH Walbro Pump Performance for 550 Horsepower Applications
At the heart of this system lies a high capacity 400 LPH Walbro pump engineered to supply steady fuel flow for engines making up to 550 horsepower. Its calibrated flow curve prevents fuel rail pressure from dropping during rapid throttle inputs, reducing the risk of cavitation and lean spots under boost or heavy acceleration. Because the pump module sits inside the tank, it benefits from constant fuel cooling and improved service life compared to out of tank designs. Consistent delivery under varying demand results in sharper throttle response and more predictable power output on street or track.
Rugged Steel Tank Construction and Baffle Control
Crafted from thick gauge steel treated to resist corrosion, the fuel tank body endures moisture, road salt and temperature fluctuations common beneath the chassis. Strategically placed internal baffles manage fuel motion, preventing slosh during hard cornering, sudden stops or uneven pavement. This stable fuel environment ensures the pump always draws from a full charge of fuel, even when tank level is low, eliminating starvation and hesitation. Heavy duty straps and hardware hold the assembly firmly against the frame, minimizing vibration and extending the life of mounting components.
Integrated Vent Filter and Accurate Level Sensing
A properly vented fuel system is crucial for smooth injection performance, and this kit's precision vent filter maintains balanced internal pressure as the pump withdraws fuel. By allowing air to reenter the tank without letting contaminants inside, it prevents vacuum lock and ensures the pump remains primed under all driving conditions. The included sending unit provides reliable fuel level readings so drivers can anticipate refuel stops, whether on a daily commute or during spirited road course sessions. Both components come preassembled in the pump module, streamlining installation and wiring for a clean underbody finish.
To match a smaller capacity fuel pump Kit at 255 LPH consider our 1971-1972 El Camino EFI Fuel Tank Kit - 255 LPH Pump for the same reliable fit and steady flow.