EFI Fuel Tank Kit with 400 LPH Pump for 1971-1972 Chevy Monte Carlo LS Swaps
When a classic Monte Carlo A Body chassis meets a demanding LS powerplant, factory fuel systems often struggle to keep up under forced induction or sustained load. This EFI fuel tank kit pairs a 400 LPH Walbro pump with a purpose built tank designed to drop into 1971-1972 Chevy Monte Carlo frame rails without cutting or major fabrication. Inside the tank an integrated vent filter maintains constant pressure to prevent air ingestion during hard cornering or acceleration and a precision fuel level sender delivers accurate gauge readings over varied driving conditions. Complete mounting hardware and step by step instructions ensure a straightforward installation for street or track applications.
Optimal In-Tank 400 LPH Walbro Pump Placement
The kit's 400 LPH Walbro unit sits inside the fuel reservoir to reduce vapor lock and eliminate aeration that can starve the engine under heavy load. By submerging the pump, heat soak from the engine bay is minimized so fuel temperatures remain cooler and more stable. This configuration also dampens road vibration and noise, extending service life and smoothing output during rapid throttle changes. Technicians benefit from simplified fuel line routing which cuts down on installation complexity while ensuring reliable support for power levels above 550 hp.
Engineered Vent Filter and Precision Level Sender
A dedicated vent filter prevents air from entering the tank during hard cornering or sudden braking, preserving consistent pressure for steady flow. Combined with the precision sender, the gauge reads accurately across varying fuel loads and G forces, avoiding sudden drops in readings that can catch drivers off guard. This synergy between vent control and level sensing enhances driver confidence by keeping performance predictable on street drives or road courses. It also protects the pump from dry running, helping maintain peak efficiency over extended use.
Custom Drop-In Tank for 1971 to 1972 Monte Carlo A Body
Each metal reservoir is shaped to fit within the original frame rails of the 1971 to 1972 A Body chassis without trimming or major modification. All mounting straps, filler neck hardware and gaskets come included, simplifying the swap process for fabricators of any skill level. Detailed step by step instructions guide removal of the stock tank and installation of this modern EFI solution, saving shop time and reducing alignment issues. The finished underbody preserves the vehicle's classic look while delivering reliable fuel supply for LS engine swaps.
Complete Package with All Installation Components
This all in one kit includes every piece needed to upgrade your fuel system without sourcing parts separately. The pump module and sending unit arrive pre assembled while tank straps, filler neck gaskets and mounting bolts are packaged in clearly labeled bags. A detailed parts list in the instructions helps prevent missing items and ensures each component is installed in the correct order. By providing matched hardware and sealing gaskets, the design reduces potential leaks and keeps your project moving forward without delays at every step.
Trust in consistent fuel delivery and precise pressure under load. To complete your Smaller capacity fuel pump Kit at 255 LPH, consider our 1971-1972 Monte Carlo EFI Fuel Tank Kit - 255 LPH Pump.