EFI Fuel Tank Kit for 1966-1967 Chevy II/Nova LS Engine Swaps
If you are tackling an LS engine swap in a 1966 through 1967 Chevy II or Nova X Body chassis this EFI Fuel Tank Kit with its 400 LPH pump ensures a steady supply of fuel under sustained throttle loads. The steel shell is stamped to the exact undercarriage profile and installs using factory straps and mounting points to maintain ground clearance. Immersion cooling keeps the pump fully submerged so the surrounding gasoline lowers operating temperature and prevents vapor lock during heavy acceleration. An integrated level sensor then feeds clean signals to modern EFI controllers for precise tank readings with no adapter harnesses required.
Precision Matched Steel Shell Integration
The fuel tank's shell is stamped from heavy gauge steel to mirror the undercarriage contours of 1966 and 1967 Chevy II X-Body frames, delivering an exact fit without chassis modification. By retaining original mounting points and factory straps, this design preserves ground clearance and the classic ride height while eliminating the need for custom brackets or welding. A factory style finish resists corrosion from modern ethanol blends, ensuring that daily drivers and weekend racers alike benefit from durable performance. The increased internal volume not only meets the demands of LS engine swaps but also provides extra range between fuel stops, making long drives more convenient and stress free.
Immersion Cooled 400 LPH Pump Performance
Positioning the Walbro 400 LPH pump module fully submerged in fuel transforms the surrounding gasoline into an efficient heat sink, lowering operating temperatures and preventing vapor lock under sustained loads. This thermal management method is critical for engines producing more than 550 hp, where uninterrupted delivery is essential during high rpm runs or extended track sessions. Internally, the premium electric pump components maintain consistent flow rates while vibration-damping mounts reduce noise and extend service life. The result is a reliable supply of fuel that keeps pace with aggressive tuning without risking cavitation or pressure drop under harsh conditions.
Integrated Fuel Level Sending Unit Calibration
The in-tank sender arrives pre-calibrated for direct interface with modern EFI controllers and dash gauges, eliminating adapter harnesses or custom rewiring. From the moment of installation, this plug and play component provides precise fuel level feedback to the engine control module, enhancing driveability and preventing false warnings that can arise from mismatched sensors. Sealed electrical connectors guard against moisture and road debris, preserving signal integrity over tens of thousands of miles. For technicians, this means straightforward diagnostics and faster replacement procedures that keep restoration and maintenance schedules on track.
All in One Kit for Streamlined Installation
This comprehensive kit consolidates every element needed for a complete swap in one package: the 400 LPH pump module, matched sending unit, tank straps, filler neck, vent filter, sealing gaskets and all mounting hardware. A detailed installation guide walks builders through tank removal, module assembly and re-installation using existing crossmember clearances and factory brackets, so no specialty tools or additional parts are required. By organizing components and step by step instructions, labor hours are reduced and swap complexity is minimized, making this solution ideal for first time installers and seasoned fabricators alike.
Count on MuscleRods for reliable fuel delivery in your LS swap. For a smaller capacity fuel pump kit at 255 LPH consider our 1966-1967 Chevy II EFI Fuel Tank Kit - 255 LPH Pump