1970-1972 Chevy Chevelle LS Fuel Tank Kit with 255 LPH EFI Pump
For an LS engine swap in a 1970-1972 Chevelle, maintaining constant fuel pressure is vital to support up to 550 horsepower. This EFI fuel tank kit pairs a 255 LPH Walbro pump with a precision sending unit and internal filter to deliver steady flow under hard driving. Designed to fit factory mounting points on the original frame rails, it installs without cutting or welding for a clean fit. Tested for heat soak and vibration resistance, the sealed assembly keeps the fuel mixture balanced for smooth throttle response and dependable performance.
Precision Fit for 1970 to 1972 Chevelle Frame Rails
This fuel tank kit is engineered to align exactly with the original mounting points on the 1970 to 1972 Chevelle A Body chassis, offering a true drop-in installation without alteration to the frame or body. By matching the factory rail spacing and strap locations, it preserves the vehicle's original undercarriage geometry and ground clearance. Installers benefit from minimized trial and error since no cutting or welding is required to achieve a secure hold. This precision fit cuts install time and maintains the integrity of suspension and brake lines. The result is a clean appearance and reliable support for high intensity driving.
255 LPH Walbro Pump Calibrated for LS Engine Demands
At the heart of this kit lies a 255 liter per hour Walbro fuel pump specifically selected to meet the needs of an LS engine producing up to 550 horsepower. Its flow rate sustains fuel pressure during rapid acceleration and wide open throttle, preventing lean conditions that can lead to detonation. By maintaining a stable air fuel ratio under all driving loads, the pump improves throttle response and drivability in street or track use. Precision calibration means the engine receives the volume it requires without cavitation or momentary pressure dips. Drivers will notice smoother power delivery when the engine is pushed to higher rpm ranges.
Sealed In Tank Module Ensuring Steady Fuel Delivery
The integrated module combines pump, filter and sending unit in a sealed housing designed to resist heat soak and vibration common to classic chassis. An internal vent filter prevents vapor lock by stabilizing pressure above the fuel level, while quality gaskets and precision hardware eliminate leaks and air intrusion. This arrangement protects critical components from contaminants and temperature extremes, extending service life. Fuel remains agitated just enough to avoid hot spots, ensuring consistent mixture even during steep corners or hard launches. The result is reliable performance and sustained pressure under spirited driving.
USA Manufactured Components for Enduring Reliability
Every element in the kit is proudly made in the United States, from the fuel pump to the mounting straps and hardware. Material selection and fabrication processes undergo strict quality control to meet the demands of high output engine swaps in vintage chassis. Components are sourced and inspected domestically, ensuring traceability and consistent performance batch after batch. This commitment to local manufacturing translates into superior durability and reduced lead times for replacement parts. Owners can trust that the assembly will withstand heat cycles, road vibration and long term exposure to fuel additives.
This assembly ensures consistent delivery under demand. To achieve a larger capacity fuel pump Kit at 400 LPH consider our 1970-1972 Chevelle EFI Fuel Tank Kit - 400 LPH Pump.