1965-1967 Pontiac GTO LS and LT EFI Fuel Tank Kit with 400 LPH Pump
When fitting a modern LS or LT mill into a 1965 to 1967 Pontiac GTO A Body chassis, maintaining consistent fuel delivery becomes as important as engine selection. Engineered around a custom molded tank that follows factory floor pan contours, the kit drops in without frame rail alterations or extra brackets. Placing a 400 LPH Walbro pump inside the reservoir keeps it submerged for cooling and prevents vapor lock during spirited cornering. All mounting straps, gaskets, and vent filters are included to simplify installation, while materials tested for ethanol tolerance and corrosion give confidence on long drives.
Precision Molded Reservoir for Exact GTO A Body Fit
Our fuel tank is shaped to match the floor pan of the 1965 to 1967 Pontiac GTO without forcing any modifications. By lining up with the factory mounting points it requires no extra brackets or rail alterations giving a direct installation path. The reservoir's precise form holds position firmly under load and cornering forces reducing vibration and preserving seal integrity. Technicians gain time savings on alignment and can set focus on tuning the LS or LT powerplant. This exact match design ensures optimal ground clearance while maintaining the classic chassis profile.
Submerged 400 LPH Pump Ensures Consistent Fuel Flow
Central to the kit is the 400 LPH Walbro pump positioned inside the tank to remain fully immersed in fuel which aids thermal regulation and prevents vapor lock during spirited runs. An in tank strainer filters debris before it can enter the pump prolonging service intervals and protecting critical fuel system parts. This arrangement delivers steady flow under sustained high load conditions and supports boosted or supercharged setups up to 550 horsepower. By harnessing the pump's cooling from surrounding fuel this approach preserves output consistency and rapid throttle response. Builders can rely on uniform pressure even in tight turns or aggressive acceleration.
Materials Tested for Ethanol Blends and Corrosion Resistance
Every component in this assembly undergoes rigorous testing to ensure compatibility with modern ethanol fuel blends and exposure to road salts. The reservoir material resists swelling or degradation over prolonged service and all welds are pressure cycle tested to confirm leak free performance under real world use. Vent filters and gaskets are crafted from polymers that withstand chemical exposure without losing flexibility or sealing ability. Metallic hardware is coated or selected to minimize rust giving confidence for both street driving and extended highway trips. Manufactured in the USA under strict quality standards the kit is built to maintain integrity mile after mile.
All Inclusive Kit for Streamlined LS and LT Swap
This package assembles every necessary part from tank straps and filler neck to vent filter and calibrated sending unit eliminating guesswork and multiple supply runs. The sending unit matches the stock gauge cluster retaining accurate fuel level readings without modifications. Precision cut gaskets and mounting hardware simplify assembly and block potential leak sources. By providing the complete hardware and filters in one box installers avoid sourcing mismatched parts and reduce shop time. This unified solution lets custom builders focus on drivetrain performance instead of chasing components.
Trust in consistent performance across your build. For a smaller capacity fuel pump Kit at 255 LPH see our 1965-1967 Pontiac GTO EFI Fuel Tank Kit - 255 LPH Pump.