1978-1987 Buick Regal and Grand National LS EFI Fuel Tank Kit with 255 LPH Pump
When fitting an LS engine into a classic G Body Buick Regal or Grand National, reliable fuel supply is critical. This 1978-1987 Buick Regal EFI Fuel Tank Kit with 255 LPH Pump delivers a custom formed steel reservoir that bolts into factory frame rails and preserves brake line routing. Designed around a submerged Walbro pump, it prevents vapor lock under sustained high load conditions and holds steady rail pressure for engines up to 550 horsepower. Constructed from heavy gauge steel with precision welds, it resists ethanol blends and road debris while maintaining original underbody clearance for smooth installation.
Precision Fit for G Body Frame Rails
The custom formed steel tank follows the exact underbody contours of 1978 to 1987 Buick Regal and Grand National chassis. By using the original mounting points it secures onto factory frame rails without interference to brake line routing or body panels. This precise fit helps maintain correct frame geometry and ensures adequate clearance for suspension components. Installers appreciate a bolt in solution that eliminates trimming or relocation tasks and preserves the classic structure of the G Body frame.
Submerged Pump Module for Vapor Lock Prevention
At the heart of the design is a Walbro pump rated at 255 liters per hour, fully submerged within the reservoir to keep it cool and free of air pockets. Immersion of the module prevents vapor lock under sustained load and steep angle driving by maintaining consistent pressure to the injector rail. This arrangement also reduces operational noise and helps deliver immediate throttle response. The dependable feed supports engine builds up to 550 horsepower on both street and track applications.
Heavy Gauge Steel Construction for Durability
Constructed from thick steel panels, the tank is welded at key stress points to resist deformation under hard acceleration and impact from road debris. Each weld seam is inspected to ensure it remains leak free with modern ethanol blends and variable temperature cycles. Reinforcements at the strap mounts prevent fatigue while an exterior coating enhances resistance to corrosion. A complete set of gaskets and seals keeps contaminants out, securing a clean fuel supply through every driving season.
Integrated Kit Assembly for Streamlined EFI Conversion
This all in one kit includes the pump module, sending unit, filler neck, vent filter, mounting straps, gaskets and all required hardware. Matching factory fill and vent connections and retaining stock wiring plugs means installers can reuse existing plumbing and electrical harness without adapter fittings. This plug and play approach reduces bench work and part sourcing so technicians spend more time on calibration and tuning. The result is a clean installation that simplifies EFI upgrades for G Body enthusiasts.
Rely on consistent pressure and proven durability in every drive. To complement this tank with a larger capacity fuel pump Kit at 400 LPH see our 1978-1987 Buick Regal 400 LPH pump Tank Kit.