1964-1967 Chevy Chevelle LS and LT EFI Fuel Tank Kit with 400 LPH Pump
When updating a classic Chevelle from 1964 to 1967 with an LS or LT powerplant the 1964-1967 Chevelle EFI Fuel Tank Kit - 400 LPH Pump addresses the critical need for consistent delivery under varying loads and rpm. By matching factory filler neck and strap locations this kit installs without cutting or welding and preserves ride height as well as rear apron clearance. A fully submerged Walbro pump rated at 400 LPH sits in a molded reservoir to resist heat soak and support sustained operation above 550 horsepower while a calibrated sending arm provides accurate fuel level readings during cornering or inclines. With complete hardware and molded gaskets included installers can focus on calibration instead of sourcing parts.
Factory Fitment and Frame Compatibility
Spanning Chevelle models from 1964 to 1967 this fuel tank kit mirrors the original rail spacing and strap mounting points. Matching the factory filler neck geometry ensures that existing hoses and vent lines route without alteration while maintaining rear apron clearance and ride height. Because the assembly bolts in with no frame cutting or welding required installers spend less time on fabrication and more on tuning. The result preserves the car's classic silhouette while delivering modern fuel delivery performance for LS or LT powerplants.
Submerged Walbro Pump Ensures Consistent Delivery
At the core of this design is a submerged Walbro unit rated at 400 liters per hour to meet the demands of engines making in excess of 550 horsepower. Placing the pump in a molded reservoir keeps it bathed in fuel to resist heat soak and maintain steady pressure under sustained high rpm operation. Internal baffles reduce fuel slosh during cornering or acceleration so engine response remains predictable. The entire pump module can be extracted as a single unit for service or upgrades without dropping the tank.
Precision Fuel Level Sending Mechanism
The calibrated sending arm follows the tank contour to deliver accurate fuel level readings even during hard cornering or steep inclines. A low friction pivot and streamlined float design prevent binding or false empty warnings that can lead to unexpected stops. By reporting volume within a fraction of a liter the unit protects the pump against dry run conditions and gives drivers confidence in fuel status. Seamless integration with stock gauge clusters preserves the factory look on the dash.
Comprehensive Kit for Streamlined Installation
This all inclusive assembly arrives ready to install with fuel pump module sending unit tank straps filler neck vent filter molded gaskets and all necessary fasteners. Precision molded seals ensure a leak free connection at every flange and spud location while the vent filter keeps debris out of the reservoir. Sourcing every required part from American made suppliers under strict quality standards reduces vendor juggling and installation hours. Technicians benefit from a bolt in solution that lets them focus on calibration rather than chasing missing hardware.
Trust this precision engineered fuel tank kit and for a smaller capacity fuel pump Kit at 255 LPH see our 1964-1967 Chevelle EFI Fuel Tank Kit - 255 LPH Pump.