1978-1987 Buick Regal and Grand National LS EFI Fuel Tank Kit with 255 LPH Pump
Whether you are swapping an LS into a 1978 to 1987 Buick Regal or Grand National you can rely on this custom fuel tank kit to bolt directly into the G Body chassis and sustain precise fuel delivery under high load. Equipped with a 255 LPH pump this kit keeps the Walbro unit immersed to avoid vapor lock while using original mounting points to preserve brake line routing and underbody clearance. Installers benefit from the in tank module that reduces plumbing clutter and cuts bench time before calibration begins. This design supports engines up to 550 horsepower while maintaining steady pressure for reliable throttle response.
Precision Chassis Alignment for G Body Integration
The custom formed steel tank is shaped to match the underbody contours of late 70s and early 80s Buick Regal and Grand National frames. Using factory mounting points, it preserves original brake line routing and chassis clearance to avoid interference with suspension or exhaust pathways. This precise fit allows the fuel reservoir to bolt directly to the frame rails without modification, ensuring proper alignment and maintaining factory geometry. By closely following the G Body profile, the design minimizes heat exposure to fuel and reduces chance of vapor lock. Installers gain from a seamless transition that cuts install time and retains the vehicle's classic structure.
Submerged Fuel Pump Module for Consistent Pressure
At the core of the system is a Walbro fuel pump rated to 255 liters per hour, fully submerged in the tank to maintain cooling and eliminate air pockets. Immersion prevents vapor lock and provides stable pressure to the injector rail even under sustained high demand or steep incline driving. The sealed pump module also reduces operational noise and limits heat build up. With the pump fully immersed, fuel starvation is virtually eliminated during cornering or hard acceleration. This arrangement delivers faster throttle response and reliable flow for engines up to 550 horsepower in both street and track settings.
Heavy Gauge Steel Tank for Enhanced Durability
The tank is constructed from high grade steel panels welded at critical stress points to resist deformation under hard acceleration and road debris impact. Each seam undergoes rigorous quality checks to guarantee leak free performance with modern ethanol blends and variable temperature conditions. Reinforced plates at the strap mounts prevent fatigue and hardware wear, preserving structural integrity over time. Corrosion resistant treatment on the exterior surface further extends service life in harsh climates. A full set of gaskets and sealing components keeps contaminants out, ensuring that the fuel supply remains clean and dependable across many seasons.
Complete Assembly Kit Streamlining EFI Upgrades
This all in one fuel tank kit includes the pump module, sending unit, filler neck, vent filter, straps and all fitting hardware required for installation. By matching factory fill and vent lines and retaining stock wiring plugs, it allows reuse of original plumbing and electrical connections. Installers save bench time and avoid adapter fittings, expediting the conversion process. The plug and play approach supports a straightforward EFI upgrade, leaving more time for calibration and tuning rather than part sourcing.
This fuel tank kit delivers consistent pressure and dependable performance. For a larger capacity fuel pump Kit at 400 LPH see our 1978-1987 Buick Regal 400 LPH pump Tank Kit.