EFI Fuel Tank Kit for LS and LT Engine Swaps in 1957 Chevy 150/210/Bel Air/Delray
When you're converting a classic 1957 Chevy chassis to an LS or LT powerplant, maintaining steady fuel pressure becomes critical and the 1957 Chevy EFI Fuel Tank Kit - 400 LPH Pump delivers consistent flow without any extra adapters. This internal tank assembly installs directly on factory mount points and follows the floor pan contours of 1957 Chevy 150, 210, Bel Air and Delray models to remove the need for custom fabrication. Engineers selected a 400 LPH Walbro pump to support engines producing more than 550 horsepower, delivering stable flow under hard acceleration and during boosted operation. With all gaskets, straps and a weatherproof wiring harness included, this complete package streamlines the LS and LT swap process so builders can focus on tuning rather than parts sourcing.
Internal Tank Assembly for Precise Chassis Fit
The EFI fuel tank is molded to match the original floor pan contours and factory mount points of 1957 Chevy 150, 210, Bel Air and Delray models. This internal assembly removes the need for custom bracket fabrication or frame rail grinding, preserving chassis strength and ground clearance. Strategically placed baffles keep the pump submerged during hard acceleration and spirited cornering, preventing fuel starvation at extreme angles. By aligning exactly with stock bolt patterns, it offers a genuine drop in solution that saves time and reduces the risk of fitment errors.
400 LPH Walbro Pump Delivering Stable Fuel Pressure under Load
The kit features a Walbro 400 LPH pump selected for its ability to support engines producing more than 550 horsepower, including boosted applications where fuel demand spikes. Its volume output maintains stable fuel pressure during rapid throttle changes, ensuring a consistent air fuel ratio and preventing lean conditions that can lead to engine knock. Quiet internal design minimizes vibration and noise, making this pump suitable for both daily driving and high output track use. Rapid response to injector demand under load helps drivers maintain maximum performance without hesitation.
Complete Modular Kit Streamlining Fuel System Installation
This package integrates the fuel pump, sending unit, vent filter and weatherproof wiring harness into one module that installs directly inside the tank. All gaskets, straps, filler neck components and mounting hardware are included, eliminating trips to the parts store and simplifying the assembly process. Connectors are clearly labeled for LS and LT engine harnesses, guiding installers through each electrical connection with confidence. By reducing parts count and coordinating component tolerance, the kit allows professional builders and home enthusiasts to complete the fuel system in a single afternoon.
Premium Materials and Components for Reliable Long Service
Every element of the fuel tank kit is manufactured from premium grade materials chosen for corrosion resistance and mechanical strength. The tank shell resists rust and maintains structural integrity over time, while seals and gaskets prevent leaks under pressure. Steel mounting straps and hardware are plated to withstand road debris and environmental exposure, extending service intervals and minimizing maintenance. This attention to component quality delivers factory level durability and dependable operation throughout extended use.
For a smaller capacity fuel pump kit at 255 LPH see our 1957 Chevy EFI Fuel Tank Kit - 255 LPH Pump and enjoy the same precise fit and reliable service.