1966-1967 Chevy II/Nova X-Body LS EFI Fuel Tank Kit with 400 LPH Pump
If you are fitting an LS engine into a 1966 or 1967 Chevy II or Nova X Body this EFI fuel tank kit ensures you have a steady high volume fuel supply under all driving conditions. Beyond the sturdy tank shell and 400 LPH pump the system includes a precise fuel level sender that works with modern EFI controls for accurate readings and consistent delivery. Installation is designed to drop in place of the stock tank with no fabrication required and all mounting hardware is included for a snug vehicle fit. Built for classic Chevy II and Nova X Body models this kit supports your LS build with the reliable capacity needed for spirited street or track use.
Precision Designed for LS Engine Integration
The fuel tank kit is engineered exclusively for LS engine swaps on 1966 and 1967 Chevy II and Nova X Body models, achieving a seamless fit in the stock tank location. Its contours match factory mounting points and body clearances, eliminating the need for cutting or reshaping the chassis. This precise integration ensures the new EFI hardware nests securely, preserving original ground clearance and preventing unwanted stress on fuel lines. The included fuel level sender interfaces directly with modern engine controls, offering accurate readings without custom adapter brackets.
Consistent Fuel Flow from 400 LPH Walbro Pump
At the heart of the system lies a 400 LPH Walbro electric pump calibrated for engines over 550 horsepower, delivering a steady supply even under rapid throttle changes and sustained high rpm. Mounted inside the tank, it uses surrounding fuel to dissipate heat, preserving flow rates during track sessions or spirited street runs. The in-tank module design also minimizes vibration and cabin noise transfer. This arrangement achieves reliable delivery that supports aggressive acceleration without hiccups or fuel starvation.
Complete Kit for Effortless Installation
This all-inclusive assembly arrives ready to install, with every component needed to convert a stock tank for EFI use. Beyond the pump module and precision fuel-level sender, it includes tank straps, filler neck, vent filter, gaskets and mounting hardware to secure all connections. A detailed guide leads you through each step, from lowering the old tank to aligning the new unit, so experienced enthusiasts can complete the swap without specialized fabrication. The result is a clean underbody layout and a tight seal against leaks.
Durable Construction for Extended Driving Range
Built to withstand the rigors of modern high performance driving, the tank shell uses rugged steel alloys that resist road debris and repeated refills. A corrosion-resistant finish shields the interior from ethanol blends and moisture, while the increased fuel capacity provides longer intervals between stops on road trips or track days. The included vent filter and gasket set help prevent contaminants from entering the system, maintaining pump longevity and fuel purity. Together, these design choices ensure worry-free operation mile after mile.
This kit provides reliable fuel delivery for LS engine installs. For a smaller capacity fuel pump kit at 255 LPH see our 1966-1967 Chevy II EFI Fuel Tank Kit - 255 LPH Pump.