1971-1972 Buick Skylark EFI Fuel Tank Kit for LS and LT Swaps
Swapping an LS or LT engine into a 1971 and 1972 Buick Skylark often reveals that the original fuel tank cannot sustain modern performance demands. This EFI tank kit with a 400 LPH pump replaces the stock unit inside the factory cavity and delivers stable flow for applications up to 550hp without chassis modifications. Installers will appreciate the precise fit to the A Body frame rails and the integrated reservoir, filter, and level sensor that guards against vapor lock under cornering forces. With all hardware and gaskets included, setup is straightforward and maintains stock underbody clearance.
Integrated Fuel Module Enhances Efficiency and Reliability
The integrated fuel module combines pump, filter and level sensor in a single assembly that nests entirely within the factory tank cavity. By immersing the filter inlet in the reservoir, the design keeps fuel temperatures lower and extends component life under sustained use. Technicians gain a single service point for inspection or replacement, which cuts diagnostic time and avoids work under the chassis. With fewer external lines and fittings, potential leak paths are minimized. The consolidated layout also supports consistent pressure control and helps prevent vapor lock during high-speed cornering or rapid throttle changes.
400 LPH Walbro Pump Maintains Steady Fuel Delivery for 550hp Applications
At the heart of this kit is a 400 LPH Walbro pump engineered to meet the demands of LS and LT engines up to 550 horsepower. Installed inside the tank, the unit operates free of cavitation even when lateral forces arise in performance driving. Its compact footprint maximizes usable fuel capacity, and the robust motor provides lasting flow stability under heavy load. Manufactured to strict U.S. standards, the pump delivers consistent pressure to the injectors and supports reliable acceleration without fuel starvation. This ensures drivers can exploit engine output with confidence, whether on the street or at the strip.
Precision Alignment with 1971 1972 Skylark A Body Frame Rails
This fuel tank kit is sculpted to mirror the original 1971–1972 Skylark A Body underbody cavity, delivering millimetre-level alignment with existing frame rails and factory straps. All mounting gaskets and vent hardware match stock locations, so no drilling or trimming is required. By preserving the vehicle's underbody clearance, the assembly allows use of reusable factory components and maintains the vintage ride height. Installers encounter a true bolt-in process that eliminates fitment guesswork and accelerates project completion. As a result, the swap preserves both structural integrity and the car's heritage appearance.
Complete Kit Design Streamlines Installation and Service
Every essential component is provided-400 LPH pump, in-tank module, sending unit, filler neck, vent filter, gaskets, straps and hardware—so there is no need to source additional parts. This comprehensive approach removes compatibility concerns and reduces the risk of mismatched fittings. With tested components designed to work in harmony, installers achieve leak-free seals, accurate fuel level readings and proper venting from the first startup. The unified package also simplifies future maintenance: replacing the module or filter requires only a single removal, speeding service and reducing vehicle downtime. By delivering all elements in one box, the kit ensures a smooth swap and dependable operation.
To accommodate a smaller capacity fuel pump Kit at 255 LPH see our 1971-1972 Skylark EFI Fuel Tank Kit - 255 LPH Pump for consistent flow and reliable fit.