1964-1967 Buick Skylark LS and LT EFI Fuel Tank Kit
For enthusiasts fitting LS or LT powerplants into a 1964 to 1967 Buick Skylark, installing the 1964 to 1967 Skylark EFI Fuel Tank Kit with 400 LPH pump addresses the common challenge of erratic fuel delivery under high demand by housing a Walbro 400 LPH pump inside the original tank. The design preserves every factory mounting point and the stock filler neck to keep the classic profile intact. Installers will value the precision sender that mates directly with the OEM wiring harness for accurate fuel level readings without splices. All required gaskets, straps and a vent filter arrive ready for a no welding no guesswork install.
In Tank Walbro 400 LPH Pump for Consistent Pressure
The heart of this EFI Fuel Tank Kit is the Walbro 400 LPH pump mounted entirely within the factory shell. Submerged placement keeps the pump cooled by fuel at all times, preventing vapor lock that can interrupt flow during spirited cornering or steep inclines. Delivering up to 400 liters per hour, it sustains consistent pressure even when feeding engines rated over 550 horsepower. By reducing turbulence inside the tank, this arrangement delivers a steady stream of fuel to the LS or LT powerplant under both steady cruise and hard acceleration. The result is a reliable supply that eliminates rich or lean spikes and supports performance upgrades without compromise.
Seamless Retrofit Using Original Mounting Points
This kit preserves every factory mounting point on the 1964-1967 Skylark tank to ensure a perfect fit with no body modifications. The stock filler neck is retained so the classic exterior profile remains untouched and the fill process uses existing hardware. Each gasket in the kit is molded to match the original opening, sealing against leaks without trimming or shims. Custom tank straps slip into the factory frame brackets for secure support, letting installers follow the original assembly flow. This approach maintains the vehicle's period correct design while upgrading to electronic fuel injection.
Precision Sender Integration for Accurate Readings
The included sending unit features an arm shaped to trace the exact inner walls of the Skylark tank, eliminating blind spots that can create false low or high readings. It snaps directly into the factory wiring harness, avoiding splices or butt connectors that often cause signal degradation over time. Calibration of the float arm matches the full range of the tank volume, from empty to brim, so the dash gauge delivers true readings under all driving conditions. This plug and play integration preserves the stock gauge look and lets drivers monitor fuel levels with confidence on every mile. Since there is no need for aftermarket gauges, the dash retains its original factory appearance and operation.
Complete American Made Hardware for Streamlined Assembly
Every gasket, strap and vent filter in the kit is manufactured in the United States under strict quality standards. The molded gaskets resist fuel seepage under pressure and temperature swings, while the vent filter keeps debris out of the system to protect the pump and lines. OEM style tank straps align precisely with the frame rails for firm support and quick installation without welding or filler pieces. All required hardware arrives in one box, so installers can complete the conversion in fewer hours and without extra parts hunting. This all inclusive approach saves time on the lift and helps sustain American manufacturing jobs.
Built for precise fit and lasting reliability. For a smaller capacity fuel pump Kit at 255 LPH see our 1964-1967 Skylark EFI Fuel Tank Kit - 255 LPH Pump.