1971-1972 Chevy Monte Carlo LS EFI Fuel Tank Kit with 255 LPH Pump
Many LS swap projects in a 1971 to 1972 Chevy Monte Carlo built on the A Body chassis run into fitment issues and insufficient fuel supply. This kit integrates a sealed steel cell with a 255 LPH Walbro pump capable of supporting up to 550 hp and accepts both LS and supercharged configurations. It ships complete with the internal tank pump module, sending unit, tank straps, filler neck, vent filter, gaskets, and all mounting hardware, installing to original frame brackets per factory specifications. By replicating stock vent locations and fuel line routing, it ensures stable delivery under dynamic loads.
Product Overview
The 1971 to 1972 Monte Carlo EFI Fuel Tank Kit with 255 LPH Pump is a dedicated solution engineered for A Body platforms of this era. This assembly replaces the original fuel tank and pump module to support modern EFI requirements. It is designed to fit precisely within the factory frame rails and mounting points of Monte Carlo models from 1971 through 1972. By matching the original tank footprint and filler neck angle, the kit retains correct chassis clearance and fuel line routing. The complete package addresses the demands of upgraded engines without altering the vehicle's underbody geometry.
Pump Performance and Capacity
At the heart of the kit is a 255 LPH Walbro unit capable of sustaining up to 550 hp. This pump flow rate ensures consistent fuel pressure even under heavy load or extended wide open throttle operation. In high demand scenarios - such as circuit driving or towing - a stable flow rate prevents lean conditions that can lead to detonation or power loss. The increased capacity over stock equipment improves throttle response and supports forced induction on LS and supercharged powerplants. Internal strainer and check valve arrangements maintain a clean supply to the rail and injectors.
Installation and Compatibility
Installation follows original factory specifications with no modifications to floor pans or frame mounts. Mounting points align directly with existing holes, minimizing labor time and eliminating the need for custom brackets. This kit is manufactured by Muscle Rods and integrates seamlessly with their mounting hardware to guarantee correct tank placement and inlet orientation. Electrical connections use OEM style terminals for a plug-and-play experience with most wiring harnesses. The assembly ships complete with necessary gaskets and straps to simplify fitment.
Reliability and Construction
Manufactured by Muscle Rods for proven quality and reliability, the tank is constructed from corrosion-resistant steel with a durable primer and paint finish. All weld seams are leak-tested to ensure long service life and consistent operation. The pump module features an integrated strainer and check valve to protect against contaminant ingress. Rubber isolators on the straps dampen vibration and road shock, reducing stress on the tank body and fittings. This robust design delivers trouble-free performance for street, strip or touring applications.
This kit maintains factory fitment and delivers stable flow under high loads. For a larger capacity fuel pump Kit at 400 LPH, consider our 1971-1972 Monte Carlo EFI Fuel Tank Kit - 400 LPH Pump.