1965-1966 Chevy B-Body Impala and Caprice LS EFI Fuel Tank Kit with 255 LPH Pump
When planning an LS conversion in a 1965 and 1966 Chevy Impala or Caprice B-Body consistent fuel pressure under sudden throttle demands is vital and this EFI Fuel Tank Kit fitted with a 255 liter per hour Walbro pump addresses that requirement with capacity for engines up to 550 horsepower. Crafted from heavy gauge stainless steel the tank shell resists ethanol blends and road salt while preserving original mounting locations to maintain the classic underbody profile. Installation aligns directly with stock fuel lines to eliminate custom brackets and accelerate the fitment process. The complete kit includes the in tank pump module sending unit straps gaskets vent filter and filler neck for a ready to install dependable EFI fuel delivery package.
Heavy Gauge Stainless Steel Shell for Enduring Corrosion Resistance
The fuel tank shell is constructed from heavy gauge stainless steel, offering robust protection against ethanol-enhanced fuels and corrosive road salts that often plague classic underbodies. By using precision formed panels, the design maintains uniform wall thickness and sealing surfaces, so weld seams stay consistent and leak-free through repeated temperature cycles. Stainless steel's natural resistance to pitting and galvanic corrosion means owners can spend less time inspecting or repairing and more time enjoying the road. This material choice also preserves the original underbody profile on Impala and Caprice frames without adding excess weight or requiring reinforcements. In effect, the shell balances heritage styling with modern durability for years of maintenance-free operation.
255 LPH Walbro Pump Ensuring Steady Supply for Up to 550 Horsepower
At the core of the kit lies a 255 liter per hour Walbro pump calibrated to support LS engines up to 550 hp, delivering consistent fuel pressure during sudden throttle openings and sustained high-load driving. Its internal rotor design and efficient electric motor maintain ideal air-fuel ratios by avoiding cavitation or vapor lock under hard cornering or track conditions. By eliminating fuel starvation scenarios, the pump sharpens throttle response and preserves injector performance even under the most demanding acceleration bursts. Engineers selected this flow rate to match modern EFI requirements without overtaxing the vehicle’s electrical system or fuel lines. This precise balance of flow and pressure control ensures optimal engine health and power delivery from the first start.
Drop In Fitment for 1965 and 1966 Impala and Caprice B Body Chassis
This fuel tank kit is engineered to drop in on 1965 and 1966 Chevy Impala and Caprice B Body frames without the need for custom brackets or frame modifications. All original mounting points remain intact, and inlet and outlet ports are machined to align directly with stock fuel lines, preserving the clean underbody look cherished by restorers. By matching the factory undercarriage geometry, the design reduces stress on hoses and fittings, minimizing the risk of leaks or vibration-induced failures. Installers benefit from a simplified assembly process that cuts labor time and eliminates guesswork. The result is a seamless integration that respects the vehicle’s heritage while delivering modern EFI reliability.
Comprehensive EFI Conversion Kit Streamlines Fuel System Upgrades
This all-inclusive EFI conversion kit arrives complete with the in-tank pump module, sending unit, tank straps, filler neck, vent filter, gaskets, and mounting hardware. Each component is chosen for compatibility with the stainless steel shell and Walbro module to ensure proper sealing, correct venting and precise fluid routing. Having every clamp, gasket and fitting in a single package removes the need to source parts from multiple vendors and reduces project delays. Technicians gain confidence that all elements meet factory-grade tolerances, which translates to fewer leaks and faster first-fire tuning. Ultimately, this turnkey solution lets builders focus on performance calibration rather than chasing missing hardware.
To complete your Larger capacity fuel pump Kit at 400 LPH consider our 1965-1966 Impala EFI Fuel Tank Kit - 400 LPH Pump. This well engineered option ensures reliable fuel delivery under demanding conditions.