1970 Chevy Monte Carlo LS EFI Fuel Tank Kit with 255 LPH Pump
Swapping an LS powerplant into a 1970 Chevy Monte Carlo raises concerns about maintaining precise fuel delivery under sudden throttle changes and this EFI Fuel Tank Kit with a 255 LPH Walbro pump addresses them by supplying uninterrupted flow for engines up to 550 horsepower. The steel reservoir matched to the frame rails slips into the A-Body chassis without brake line rerouting and retains the factory filler neck and vent filter for a stock look. In addition the submerged pump assembly runs cooler and prevents vapor lock during spirited acceleration while damping operational noise. Installers will value the direct bolt on design and precision sending unit which work together to maintain steady pressure and simplify the swap process from start to finish.
Frame Matched Installation for 1970 Monte Carlo
This EFI fuel tank kit is engineered to align precisely with the frame rails of a 1970 Chevy Monte Carlo A Body chassis, eliminating the need for cutting or custom bracket fabrication. The steel reservoir contours to the underbody geometry while preserving suspension mounts and brake line routing, so ground clearance and handling remain factory standard. Retaining the original filler neck and vent filter not only preserves the stock appearance but also streamlines service access and maintenance. Installers benefit from the included straps and hardware that secure the assembly directly to factory mounting points, reducing alignment time and minimizing the risk of fitment issues during an LS engine swap.
Submerged 255 LPH Walbro Pump Design
At the core of this kit is a 255 LPH Walbro fuel pump housed entirely inside the tank's liquid reservoir, which maintains consistent pressure for engines up to 550 hp. Immersion in fuel keeps the pump temperature low, extending component life and virtually eliminating vapor lock during spirited acceleration or in hot environments. The in-tank location also dampens operational noise for a quieter cabin experience. An internal bypass valve manages excess pressure under sudden throttle changes, resulting in seamless flow and reliable delivery whether cruising or during hard launches.
Durable Steel Fuel Tank Construction
The tank shell is built from corrosion-resistant steel, chosen for its ability to endure road debris, moisture exposure, and temperature variations without rusting over time. Precision welds secure the pump module and sending unit interfaces, providing a rigid structure that resists vibration and chassis flex during dynamic driving. All sealing surfaces use EFI-rated gaskets and stainless hardware to create a leak-free barrier against contamination and fuel seepage. This robust fabrication ensures the assembly withstands repeated load cycles and maintains system integrity mile after mile.
EFI Upgrade for Consistent Engine Protection
Switching from a carburetor setup to this EFI tank kit delivers immediate improvements in fuel metering and engine safety. The precision sending unit coordinates with the submerged pump to deliver a steady stream of fuel, preventing lean spikes that can lead to piston or valve damage under load. Improved atomization and closed-loop control keep consumption in check during everyday driving while unleashing full flow on demand. The result is crisp throttle response, stable pressure under hard acceleration, and enhanced protection for internal components across all driving scenarios.
To support a larger capacity fuel pump Kit at 400 LPH consider our 1970 Monte Carlo EFI Fuel Tank Kit - 400 LPH Pump for seamless integration and reliable delivery.