1965-1967 Pontiac GTO LS Swap Fuel Tank Kit with 255LPH Pump
Installing an LS engine into a 1965-1967 Pontiac GTO often exposes stock tanks to fuel starvation under cornering or aggressive throttle events. This 1965-1967 Pontiac GTO EFI Fuel Tank Kit with integrated 255 LPH tank mounted pump delivers reliable feed by pairing an OEM style steel reservoir with internal baffling that keeps the Walbro unit fully submerged during rapid maneuvers. In addition the calibrated sending unit matches factory gauge resistance for true level readings and the direct fit design uses original A Body mount points to avoid undercarriage modifications. By retaining the factory crossmembers and the original straps this kit simplifies installation and keeps chassis geometry intact while supporting up to 550 horsepower capacity.
OEM Direct Fit Using A-Body Mount Points
By retaining the original A-Body fuel tank mount points this kit installs without cutting or welding the chassis floor. Precision molded pads align the reservoir to factory rails and cross members for a seamless interface that preserves the alignment defined by Pontiac engineers. Stock style tank straps and gaskets complete an authentic seal that resists leaks under spirited acceleration and daily driving alike. Proudly assembled in the United States this design minimizes labor time while maintaining the integrity of the factory undercarriage. Installers benefit from a plug and play solution that lets them focus on wiring and plumbing rather than custom fabrication.
Strategic Internal Baffle Design For Stable Fuel Pickup
Internal baffles are positioned to trap fuel around the inlet area during cornering, hard braking, and rapid acceleration. This configuration prevents air from reaching the pump inlet and maintains a continuous fuel column at the pickup point. Consistent immersion of the pump element ensures stable volume delivery to the rail, which is essential for precise fuel injection control and throttle response. By reducing the risk of fuel starvation the system protects both the pump and injectors from wear caused by erratic flow. The tank interior layout also maintains consistent head pressure around the pump inlet regardless of fuel level.
Submerged 255 LPH Pump For Consistent Flow And Cool Operation
Mounting the 255 LPH Walbro pump inside the tank immerses it in fuel for passive cooling that reduces heat soak and extends service life. The shortened fuel path between pump and rail allows rapid pressure recovery when throttle demand increases, which supports engines up to 550 horsepower. Integrated wiring within the assembly streamlines installation and limits junctions that could compromise reliability. Continuous flow at high output demands ensures the engine control unit can adjust fueling without delay. Positioning the pump close to the fuel rail also lowers the risk of vapor lock during high temperature operation.
Calibrated Sending Unit For Accurate Gauge Feedback
The sending unit is calibrated to match the original gauge resistance curve, enabling direct connection to factory dash instruments without modification. Accurate float travel ensures the gauge needle reflects true tank levels and retains original warning threshold behavior. By preserving the stock instrument response drivers avoid guesswork about remaining fuel during spirited driving. This thoughtful integration maintains the classic interior appearance while delivering modern functionality. A robust float arm and pivot design ensures long term accuracy and repeatable readings even over rough road surfaces.
To supply even higher flow rates consider our 1965-1967 Pontiac GTO EFI Fuel Tank Kit - 400 LPH Pump for a Larger capacity fuel pump Kit at 400 LPH.