1964-1967 Chevy Chevelle LS and LT EFI Fuel Tank Kit with 400 LPH Pump
When installing an LS or LT powerplant in a 1964 through 1967 Chevelle, the 1964-1967 Chevelle EFI Fuel Tank Kit 400 LPH Pump addresses the vital requirement for consistent fuel delivery across varying rpm and load conditions. This kit retains factory filler neck and strap locations for a bolt in installation that requires no cutting or welding while preserving original ride height and rear apron clearance. A fully submerged 400 LPH Walbro pump sits in an internal tank module to resist heat soak and supply fuel to engines producing over 550 hp. The precision sending unit delivers accurate level readings even during cornering, and the inclusion of straps, vent filter, gaskets and installation hardware ensures a ready to mount solution without sourcing additional parts.
Seamless OEM Style Integration
The 1964 to 1967 Chevelle EFI Fuel Tank Kit 400 LPH Pump is engineered to install using the original floor pan mounting points and stock fasteners. Precision laser stake alignment pins ensure repeatable placement and maintain clearance for suspension and exhaust components. Designed specifically for GM A-body chassis modifications, this assembly supports both LS and LT powerplants while preserving correct driveline geometry. By matching stock dimensions, it eliminates the need for custom fabrication or chassis alteration. A direct fit to the factory filler neck and vent lines preserves the vehicle's emissions routing and underbody appearance.
High Flow Fuel Delivery System
This kit includes a Walbro 400 LPH in-tank pump capable of supporting forced induction or any engine surpassing 550 hp. The pump's gerotor design and brushless motor deliver high efficiency with reduced electrical load. An integrated buffer chamber minimizes pressure pulsations and ensures consistent rail pressure under heavy acceleration or hard cornering. A reinforced filter sock guards against debris while maintaining peak flow rates. The precision calibrated sending unit offers accurate fuel level readings on the dash gauge so drivers can monitor consumption without guesswork. Modular inlet and outlet fittings allow straightforward line routing and quick adapter swaps.
American Craftsmanship and Serviceability
Every steel panel of this fuel tank is laser cut and welded by hand in the United States before receiving a multi-stage corrosion resistant coating. Weld seams undergo pressure testing to guarantee leak-free integrity, and the exterior finish resists road chemicals and environmental exposure. A quick-release access ring secures the pump module for hassle-free removal, allowing technicians to swap the pump or sender without tank removal. Installation hardware, gaskets and instructions are included in one comprehensive package so builders can complete their EFI conversion with confidence and minimal downtime.
This kit ensures consistent fuel delivery for LS and LT swaps using factory mounting points with minimal fit work and no additional parts required. To complete your Smaller capacity fuel pump Kit at 255 LPH, consider our 1964-1967 Chevelle EFI Fuel Tank Kit - 255 LPH Pump.