1965-1966 Chevy Impala and Caprice LS Fuel Tank Kit with 255 LPH Pump
When installing an LS engine in a 1965 or 1966 Impala or Caprice, reliable fuel delivery up to 550 horsepower hinges on the right tank and pump. This EFI fuel tank kit with a 255 LPH Walbro module features a stainless steel shell and retains factory mounting points for a direct fit. Complete with straps, gaskets and a vent filter, it streamlines drop in installation on the classic B Body chassis. Whether cruising or pushing throttle response, the assembly maintains pressure and flow without custom modifications.
Stainless Steel Shell Provides Durable Corrosion Protection
The fuel tank shell is crafted from heavy-gauge stainless steel to resist rust and chemical attack over time. Its material properties maintain structural integrity when exposed to ethanol blended fuels or road salts, preserving tight tolerances under thermal cycling. This robustness reduces the likelihood of leaks or deformation compared to softer metals. Owners and technicians will appreciate the tank’s ability to remain maintenance free through years of use, even in demanding environments.
255 LPH Walbro Pump Fuels Up to 550 Horsepower Engines
The in-tank module features a Walbro unit rated at 255 liters per hour, ensuring consistent fuel supply for LS engine swaps up to 550 horsepower. Precision internal calibration controls pressure swings, minimizing fuel starvation during hard acceleration or sustained cornering. With stable output you can sharpen throttle response and maintain engine breathing under all driving conditions. This reliable volume supports both spirited street driving and occasional track use without risking lean runs.
Complete Fuel Tank Kit Simplifies Classic Impala Conversion
Designed for 1965 and 1966 Impala and Caprice B body chassis, the kit retains factory mounting points to facilitate a direct fit without frame modification. It includes all required components such as tank straps, sending unit, filler neck, vent filter and gaskets, so installers can avoid extra parts searches. Precision matched inlet and outlet ports integrate seamlessly with existing fuel lines, reducing installation time in a home garage. The straightforward drop in kit approach keeps the process efficient and ensures a leak free final assembly.
EFI Upgrade Improves Fuel Economy and Throttle Precision
Switching from a carbureted system to electronic fuel injection brings measurable gains in fuel economy and response. The precision metering of the in-tank pump stabilizes fuel pressure, sharpening accelerator input and refining idle control. This level of accuracy enhances driveability during stop and go traffic as well as steady highway cruising. With this kit, classic Impala owners enjoy modern EFI performance while preserving the vehicle’s original character.
Trust MuscleRods for reliable performance. To access a larger capacity fuel pump Kit at 400 LPH see our 1965-1966 Impala EFI Fuel Tank Kit - 400 LPH Pump.