1971-1972 Buick Skylark EFI Fuel Tank with 400 LPH Pump for LS and LT Swaps
Swapping in an LS or LT powerplant into a Skylark A Body chassis often exposes the stock tank's inability to maintain pressure under heavy acceleration. The 1971 to 1972 Skylark EFI Fuel Tank Kit with a 400 LPH pump tackles this challenge by supplying steady fuel flow for applications over 550 hp without altering the frame. Locating the pump inside the tank ensures constant pressure to prevent vapor lock, and the integrated module delivers accurate fuel level data to keep your dash readings true. Every gasket, vent filter and mounting strap is included for a direct fit into your Skylark so installation stays focused on the engine rather than fabricating parts.
Efficient Fuel Delivery with 400 LPH Walbro Pump
The heart of this fuel tank kit is the validated 400 LPH Walbro pump, selected for its ability to sustain flow rates needed by supercharged or high output LS and LT engines. By immersing the pump inside the tank, it maintains consistent pressure even under sustained cornering or heavy acceleration, preventing fuel starvation and vapor lock. Users will notice an immediate improvement in throttle response, as the pump's internal design reduces cavitation and maintains stable flow under load. Built entirely in the USA, this unit resists heat soak and offers a service life that aligns with demanding engine swap requirements. For engine builders aiming at 550 hp or more, this pump delivers the confidence that fuel supply will never lag behind power demands.
Integrated In Tank Module Simplifies Installation
This kit's in tank module unites the pump, filter and sending unit into a single assembly, removing the need for separate plumbing runs and multiple connection points under the car. Locating the filter at the pump inlet cools the fuel before it reaches the regulator, extending the lifespan of downstream components. The calibrated sending unit employs a precision float mechanism, yielding accurate fuel level readings to avert unexpected stalls in spirited driving. Technicians gain installation speed by avoiding the fabrication of brackets or hoses, while owners benefit from a reduction in potential leak zones. Overall, this integrated approach streamlines both installation and routine maintenance.
Body Matched Fit for 1971–1972 Skylark A Body Chassis
Every curve and mounting lug of the new tank housing mirrors the factory cavity in the Skylark A Body, eliminating any need for frame alterations or adapter plates. Tank straps, filler neck location and vent filter ports align exactly with stock positions, allowing installers to reuse existing hardware or the supplied replacements without modification. This meticulous fit preserves underbody integrity and maintains correct ground clearance, a critical factor when upgrading to a modern engine. For enthusiasts tackling their first engine swap, this precise geometry removes guesswork on clearance and routing. In aggregate, the result is a seamless integration that respects the vehicle’s original structure.
Comprehensive Kit Contents Ensure Leak Free Operation
Beyond the core pump assembly, this kit includes all gaskets, tank straps, vent filter and a dedicated filler neck sized for the Skylark application to ensure a reliable seal and prevent external contamination. Having these parts on hand eliminates additional trips to parts stores and reduces downtime during the swap process. Each component is engineered to work together, from the precision machined gasket surfaces to the corrosion resistant tank fittings. Installers can focus on mechanical tasks rather than sourcing missing hardware or custom hoses. The thoughtfulness of this complete package enhances the overall durability of the fuel system and gives confidence in long term service.
Built for uninterrupted fuel flow and consistent pressure in LS or LT swaps, this kit ensures reliable performance; for a smaller capacity fuel pump Kit at 255 LPH see our 1971-1972 Skylark EFI Fuel Tank Kit - 255 LPH Pump.