1969-1970 Impala EFI Fuel Tank Kit with 255 LPH Pump
Addressing the demands of modern EFI installations in a 1969 or 1970 Impala, this EFI fuel tank kit integrates a reliable 255 LPH Walbro pump with a reshaped tank module to maintain factory strap locations and support up to 550 hp. Built from heavy gauge galvanized steel with a protective powder coat finish, it resists ethanol blends and corrosion over years of use. The profile sits 0.75 inch deeper and five inches shorter than the original tank, preserving trunk clearance and simplifying installation in the Chevrolet B-body chassis. Installers get a bolt-in solution that requires no welding or custom brackets for LS engine conversions.
Custom Tank Profile for Stock Strap Alignment
The reshaped fuel tank sits three quarters of an inch deeper and five inches shorter than the original Impala unit, ensuring a precise fit beneath the trunk floor without altering ground clearance. By using laser-verified measurements of the 1969–1970 B-body chassis, mounting flanges align exactly with factory strap locations, so installers avoid welding or creating custom brackets. This carefully tailored geometry not only maintains trunk space but also preserves ride height and vehicle balance. Machined contact surfaces further reduce vibration noise, resulting in a secure, rattle-free installation that looks and feels factory-correct.
Submerged Pump Module Ensuring Consistent Fuel Delivery
Housing the 255 LPH Walbro pump fully under fuel eliminates the risk of vapor lock and keeps the unit cool under sustained high-load conditions. Operating submerged in the sealed tank module allows the pump to deliver stable fuel pressure from idle through wide-open throttle, supporting engines up to 550 horsepower without hesitation. Integrating the sending unit within the same assembly streamlines fuel lines and electrical connections, reducing potential leak points and simplifying diagnostics. As a result, EFI response remains crisp under rapid throttle transitions, crucial for spirited driving or high-output applications.
Galvanized Steel Shell with Protective Coating
A heavy gauge galvanized steel shell forms a robust barrier against corrosion, making the tank ideally suited to ethanol blended fuels commonly used in modern conversions. The powder coat finish bonds to every contour of the metal, shielding weld seams and cut edges from pitting, abrasion, and chemical attack. This combination of base material and surface treatment also dampens sound transmission through the tank walls, helping to deliver a quieter cabin experience. With this corrosion-resistant design, routine maintenance can be limited to visual inspections, providing years of reliable service without unwanted rust or wear.
All in One EFI Tank Kit for Streamlined Installation
This comprehensive kit includes the in-tank pump module with integrated sending unit, molded gaskets, filler neck, vent filter, precision hardware, and OE-style straps to match factory mounting points. Each component is engineered to work together for a leak-free fit, eliminating the need to track down separate parts. By delivering everything in one package, technicians can focus on tuning and calibration rather than parts sourcing, significantly reducing installation time. Whether in a home garage or professional shop, this complete solution enables a smooth EFI conversion for the classic Impala chassis.
Count on MuscleRods for reliable performance and see our 1969-1970 Impala EFI Fuel Tank kit - 400 LPH Pump for the same fuel tank but with a 400LPH pump.