EFI Fuel Tank Kit for LS and LT Engine Swaps in 1964 Pontiac GTO
When upgrading a 1964 Pontiac GTO with a modern LS or LT powerplant, consistent fuel flow becomes essential and the 1964 Pontiac GTO EFI Fuel Tank Kit - 400 LPH Pump steps in to meet that need. Featuring a 400 LPH Walbro pump submerged in the fuel, this kit maintains steady pressure during hard acceleration and high engine loads. Each component installs using existing mounting points without any frame changes, preserving the GTO's original structure. Drivers will also appreciate the calibrated sending unit for accurate fuel level readings that take the guesswork out of every drive.
Robust 400 LPH Walbro Pump for Sustained Fuel Delivery
The heart of this EFI fuel tank kit is the in tank 400 LPH Walbro pump, selected for its ability to maintain steady pressure even when powering supercharged or 550+ horsepower setups. By remaining fully submerged, the pump benefits from constant cooling, which reduces heat build-up and preserves performance over time. This design also prevents fuel starvation under hard acceleration, ensuring throttle response remains sharp on the strip or street. Furthermore, the submerged orientation minimizes the chance of vapor lock, so drivers can count on reliable starts and smooth operation regardless of operating temperature.
Calibrated Sending Unit for Factory Gauge Accuracy
Accurate fuel level readings are critical in a classic GTO, and the sending unit in this kit is calibrated to replicate the original measurement curve of the factory gauge. That precision means you'll avoid unexpected empty-tank warnings and plan refueling stops with confidence on long drives. The rugged construction of the float mechanism and seals ensures that readings stay consistent over thousands of miles without drifting or sticking. In daily driving or spirited runs, this sending unit eliminates the guesswork that can plague aftermarket swap solutions.
OEM Style Direct Fit Installation without Frame Alterations
This fuel tank kit is engineered to bolt directly into the 1964 Pontiac GTO, Lemans, or Tempest using existing mounting points, requiring no cutting, welding, or custom fabrication. Every component arrives pre-assembled and ready to install, from the filler neck to the straps and hardware, which cuts installation time dramatically. By preserving the original frame and chassis integrity, enthusiasts retain the classic appearance beneath the car while modernizing its performance. Whether you're a seasoned professional or a hands-on hobbyist, the straightforward process lets you complete the upgrade in a single weekend.
Integrated Filtration to Protect Fuel System Components
Modern LS and LT fuel injectors demand contaminant-free fuel, so this kit includes a vent filter and precision gaskets to block dirt, moisture, and debris from entering the tank. The vent filter captures airborne particles before they can settle in the pump or lines, while the sealing gaskets eliminate leaks and maintain system pressure. As a result, the injectors and pump see only clean fuel, reducing wear and clogging and extending service intervals. This level of protection translates into more reliable performance, fewer maintenance headaches, and greater longevity for your entire fuel delivery network.
Trust MuscleRods for consistent fuel delivery in your LS or LT swap and for a smaller capacity fuel pump Kit at 255 LPH see our 1964 Pontiac GTO EFI Fuel Tank Kit - 255 LPH Pump.