1964-1967 Chevy Chevelle LS and LT EFI Fuel Tank Kit with 400 LPH Pump
For LS and LT engine conversions in the 1964 through 1967 Chevelle chassis, the 1964-1967 Chevelle EFI Fuel Tank Kit with 400 LPH Pump ensures steady pressure and fits original mounting points without cutting or welding on the frame. By mirroring the stock filler neck and strap locations, it maintains factory hose routing and underbody clearance under the rear apron while preserving classic proportions. A fully submerged Walbro unit rated at 400 liters per hour resists heat soak and sustains consistent delivery during extended high rpm operation, and a precision sending arm reports fuel levels accurately through cornering forces. Complete hardware and molded gaskets arrive together so technicians can concentrate on fitment rather than chasing extra parts.
Factory Style Fitment Preserves Classic Proportions
The fuel tank shell is shaped to match the frame rail spacing and strap locations of Chevelles built from 1964 to 1967. By replicating the original filler neck geometry it aligns with factory hose routing and ensures underbody clearance below the rear apron is maintained. Because no frame rail trimming or welding is required the installation time is reduced and the risk of alignment errors or structural issues is eliminated. Technicians benefit from a bolt in solution that uses the existing mounting points, allowing focus on wiring and calibration instead of fabrication. This approach preserves the car's original proportions while adapting to modern LS and LT fuel delivery demands.
Fully Submerged 400 LPH Walbro Pump Performance
At the heart of this kit is a fully submerged Walbro pump rated at 400 liters per hour, installed within a metal reservoir to resist heat soak and maintain constant pressure during sustained high rpm operation. This pump capacity is suitable for engines producing over 550 horsepower and helps prevent lean conditions under load. The entire pump and sock assembly can be removed as a single modular unit, making service or upgrades quick without the need to drop the complete tank. Internal baffling minimizes fuel slosh at cornering or acceleration so pressure remains steady and engine response stays sharp. The submerged design also cools the unit and extends service life under racing style driving.
Precision Sending Unit for Accurate Fuel Feedback
The precision sending unit features a float arm calibrated to the tank's internal contour, delivering accurate fuel level readings even during hard cornering or steep inclines. Its low friction pivot and streamlined float minimize binding and false empty warnings that can lead to unexpected stops. By reporting fuel volume to within a fraction of a liter the system protects the pump against dry running and helps drivers plan refueling stops with confidence. Integration with stock gauge clusters is seamless, offering a true factory look and dependable performance. This precise measurement capability ensures peace of mind on long highway stretches or spirited backroad runs.
Complete Kit Assembly for Efficient Installation
Every component needed for a reliable conversion arrives in this kit, including tank straps, molded gaskets, vent filter, filler neck and all required hardware. Precision molded gaskets ensure a leak free seal at the flange and spud, while the vent filter prevents debris from entering the reservoir. With both pump module and sending unit pre assembled installers can focus on final adjustments instead of chasing parts. Each item is produced by an American made supplier under strict quality standards. This all in one package streamlines the workflow and reduces installation hours, resulting in a clean, reliable upgrade.
This kit ensures reliable fuel supply under varied conditions and straightforward installation. For a Smaller capacity fuel pump Kit at 255 LPH see our 1964-1967 Chevelle EFI Fuel Tank Kit - 255 LPH Pump.