1964 Pontiac GTO LS EFI Fuel Tank Kit with 255 LPH Pump
When installing an LS engine in a 1964 Pontiac GTO the fuel system must meet precise volume and pressure demands under sustained loads. The 1964 Pontiac GTO EFI Fuel Tank Kit - 255 LPH Pump provides a reliable in tank Walbro module that delivers 255 LPH for up to 550 horsepower. This direct OEM style tank includes a precision calibrated sending unit for accurate factory gauge readings and ships with tank straps filler neck vent filter gaskets and all necessary hardware. The assembly aligns with factory points on GTO Lemans and Tempest chassis to preserve underbody geometry and uses gasoline as a coolant to prevent cavitation under rapid acceleration.
Overview
The 1964 Pontiac GTO EFI Fuel Tank Kit with a 255 LPH pump offers a complete solution for modern fuel injection conversions in classic GTO, Lemans, and Tempest models. Designed as a direct OEM style replacement, this tank preserves the original mounting points and contour to the unibody structure. By matching the factory envelope, the kit maintains the correct ride height and clearance under the rear suspension while routing fuel lines along the factory path. Every component is precision formed to ensure compatibility without modification.
Performance and Fuel Delivery
At the heart of this kit lies a Walbro 255 LPH pump capable of supporting builds up to 550 HP without starvation under heavy load. The high volume output maintains consistent pressure during wide open throttle runs and extended highway cruising. Engineers calibrated the internal sump and outlet geometry to optimize flow at both low and high engine speeds. The sending unit is precision calibrated for seamless integration with the Pontiac's original gauge cluster, delivering accurate readings without aftermarket adapters or electronic modules.
Fitment and Installation
Installation follows the original service manual steps with no cutting or welding required. The tank drops in place using factory straps and bolts, and the pump module locks into the stock receiver ring. All fittings accept standard GM quick-connect lines to simplify plumbing. Molded mounting pads and baffles ensure minimal fuel slosh and quiet operation during acceleration and cornering. Proudly made in America, this kit uses corrosion resistant steel and premium internal seals for reliable operation over many seasons. The overall design guarantees a tidy underbody appearance and restores full fuel injection reliability to a truly iconic classic.
This EFI fuel tank kit meets LS swap precision and flow demands, and for builds requiring larger capacity fuel pump Kit at 400 LPH, consider our 1964 Pontiac GTO EFI Fuel Tank Kit - 400 LPH Pump.