LS EFI Fuel Tank Kit with 400 LPH Pump for 1963-1967 Chevy Corvette
If you are fitting an LS engine into a 1963 to 1967 Corvette Y-Body chassis and need reliable fuel delivery under demanding conditions, the 1963 to 1967 Corvette EFI Fuel Tank Kit with 400 LPH Pump is engineered to maintain stable flow at high rpm and under boost. The in-tank module houses a 400 LPH Walbro pump that sustains pressure during extended high rpm runs and recirculates excess fuel to reduce pump temperature. A calibrated sending unit compensates for cornering forces and the assembly matches factory strap locations for installation without modifications while corrosion resistant construction stands up to ethanol blends. The kit includes all mounting hardware and gaskets for a leak free seal and provides accurate fuel level readings under hard acceleration and aggressive cornering.
In Tank Pump Module for Sustained LS Engine Demand
The in tank pump module integrates a 400 LPH Walbro unit within the fuel cell to deliver constant flow under prolonged high rpm operation. By recirculating excess return fuel, the assembly reduces heat buildup on the pump and extends its operational life. This configuration maintains stable pressure under boost and track driving, preventing lean conditions that can harm LS engine performance. Housing the pump inside the tank also improves noise isolation and shields the unit from external temperature swings. The outcome is consistent power delivery when pushing the engine at elevated output levels.
Accurate Fuel Level Feedback During Cornering and Vibration
The precision-engineered sending unit uses a pivot arm and finely tuned resistor track to monitor fuel movement reliably. During hard cornering or chassis vibrations, the float compensates for fuel slosh, keeping the gauge signal within tight tolerances. Accurate level reporting helps drivers anticipate refueling stops and avoid unexpected shutdowns during spirited runs. This level of feedback is essential when fuel reserves can drop quickly in high-output setups. Consistent electrical output also ensures seamless integration with stock and aftermarket dashboard systems.
Direct Fit Installation Into Corvette Fuel Bay
Designed specifically for the 1963 to 1967 Corvette Y Body chassis, this kit aligns with original strap locations to enable a direct fit without chassis modifications. It includes all straps, purpose built gaskets, mounting hardware, filler neck, and vent filter to guarantee a leak free seal and proper breather operation. Technicians can install the module with standard hand tools, eliminating fabrication delays and focus on engine calibration. Retaining the stock footprint maintains original underbody clearance and preserves suspension geometry. This turnkey solution streamlines LS engine integration for both street and track builds.
Corrosion Resistant Construction for Ethanol Compatibility
Manufactured in the USA from materials selected to resist chemical attack, the tank shell and internal parts withstand ethanol blended fuels and moisture. Surfaces are treated to prevent degradation over time, while durable seals resist swelling and leaks. The robust connector interfaces use premium grommets that maintain a tight seal through temperature cycles and fuel vapor exposure. This corrosion resistant design ensures reliable performance across varying climates and conditions. Enthusiasts benefit from a fuel delivery system built to endure hard use mile after mile.
Count on consistent flow and accurate level reporting under every driving condition. To complement your smaller capacity fuel pump Kit at 255 LPH see our 1963-1967 Corvette EFI Fuel Tank Kit - 255 LPH Pump.