LS EFI Fuel Tank Kit for 1964-1967 Chevy Chevelle with 255 LPH Pump
When swapping an LS engine into your classic 1964 to 1967 Chevelle, the factory tank proves inadequate under sustained throttle and spirited driving. This EFI Fuel Tank Kit installs directly in the stock mounting points and houses a 255 LPH pump module submerged in fuel to keep operating temperatures low and avoid vapor lock. Complete hardware including straps, gaskets, a vent filter and fittings arrives ready to bolt in without cutting, welding or fabrication. Because the calibrated sending unit follows the factory resistance curve drivers get reliable gauge readings on long highway runs or track sessions.
Submerged Pump Design for Consistent Fuel Delivery
The fuel pump module is placed fully inside the tank to use the surrounding gasoline as a cooling medium, which keeps operating temperatures down and prevents heat buildup that leads to vapor lock. Rated for flow at 255 liters per hour, the Walbro unit meets the demands of engines up to 550 horsepower without faltering under load. By running below the liquid surface, the pump consistently draws cool fuel even during extended highway stretches or spirited driving, eliminating pressure dips when cornering or braking. This approach also preserves factory clearances under the chassis, so there is no need for extra mounts or chassis modifications. As a result, drivers experience rock steady fuel pressure from the first lap on the track to a long distance cruise.
Factory Style Installation Preserving Original Tank Bay
This kit installs directly into the stock tank bay without cutting or welding, maintaining the original sheet metal and frame rail integrity. All mounting points align precisely with the factory design, letting you use the existing straps, filler neck opening, and body holes for a clean fit. The included vent filter and high quality gaskets mirror the vehicle's original emissions routing and sealing surfaces, so you stay compliant with stock venting. Eliminating custom brackets and extra cutting reduces both install time and the chance of alignment errors. The result is a seamless underbody appearance that retains the classic 1964 through 1967 Chevelle look.
Calibrated Sending Unit for Accurate Gauge Feedback
The precision sending unit replicates the factory resistance curve to ensure the original gauge cluster reports fuel levels accurately. A corrosion resistant float arm and robust wiring harness safeguard smooth electrical connection over years of use, preventing erratic needle swings or false empty warnings. Because its output mimics stock behavior, drivers can trust remaining range estimates without second guessing gauge fluctuations on long trips or track outings. This linear response simplifies refueling planning and reduces downtime by avoiding surprises at remote stations. Reliable meter feedback is especially critical when operating an LS powerplant under sustained throttle conditions.
All Inclusive Hardware Package Reducing Installation Headaches
The kit bundles every component needed for a professional grade EFI conversion in one box, including the pump, module, sending unit, straps, filler neck, vent filter, gaskets, and all fittings. Detailed, step by step instructions outline proper gasket orientation and specify correct torque values to achieve leak free sealing. Builders save hours that would otherwise be spent sourcing compatible parts or verifying fitment, as every piece is engineered to match the Chevelle tank bay setup. This unified hardware integration cuts down on installation errors and callbacks by ensuring each fitting and fastener is the right size. By streamlining assembly into a single supply package, the conversion becomes straightforward rather than a scavenger hunt for parts.
This kit maintains stable fuel flow under sustained demand. To upgrade to a larger capacity fuel pump Kit at 400 LPH see our 1964-1967 Chevelle EFI Fuel Tank Kit - 400 LPH Pump.