LS and LT Fuel Tank Kit for 1971-1972 Pontiac GTO and Lemans
Swapping an LS or LT powerplant into a classic 1971 through 1972 Pontiac GTO or Lemans body often uncovers clearance conflicts and fuel starvation risks and this EFI Fuel Tank Kit employs a notched steel reservoir with a 400 LPH pump and integrated sending unit to deliver a constant supply under sustained throttle. The precision cut tank profile follows exhaust pipes and rear tire arcs to maintain original rail integrity and avoid interference without cutting or welding. Included brackets straps gaskets and adapter fittings allow the complete assembly to bolt onto factory rails in minutes while the fine mesh filter guards against vapor lock and erratic gauge readings.
Notched Reservoir Geometry for Seamless Frame Alignment
The steel fuel tank features precision notches cut to follow the exhaust routing and rear tire arc of 1971 and 1972 GTO and Lemans chassis. By selectively removing material only in critical zones where the pipes or tire path pass, the tank preserves full rail integrity and original frame strength. This tailored profile allows the unit to be bolted onto stock rails without any cutting or welding, simplifying the fitment process. Designers have matched contours to factory rail lines so installers can rely on consistent clearance and alignment from one installation to the next.
400 LPH Walbro Pump Supporting Over 550 Horsepower
At the heart of the kit, a 400 liters per hour Walbro pump is chosen for its ability to sustain fuel flow demands of modern LS and LT engines producing more than 550 horsepower. This pump maintains steady pressure under full throttle by resisting cavitation at high rpm and handling heat buildup within the sealed reservoir. Its robust vanes and housing construction ensure reliable performance during extended highway runs or track sessions. Drivers benefit from consistent mixture control, reducing the risk of lean conditions that can harm internal engine components.
Integrated Fuel Sending Module Ensuring Accurate Level Readings
This system ships with a combined in tank assembly that houses the pump, sending unit and fine mesh vent filter in one sealed module. The calibrated float arm delivers precise fuel level feedback, even under hard acceleration or tight cornering, eliminating erratic gauge movement. Internal flow paths are shaped to minimize dead spots and keep the pump submerged at all times, which lowers wear and extends service life. Factory style connectors seal out moisture and plug directly into existing harnesses, securing reliable signal transmission without modification.
Complete Bolt On Hardware Kit Streamlining Installation
Every component needed for installation is included, from tank straps and mounting brackets to gaskets, filler neck adapter and vent filter. Each bracket is pre formed for the correct orientation on the stock frame rails, while the adapter fittings match factory vent and fill openings so no custom plumbing is required. With all gaskets and hardware packed in a single kit, installers save time by avoiding parts scavenging and can finish the fuel system retrofit in minutes. This ready to install package reduces the risk of leaks and misalignment for a professional result.
This fuel tank assembly is crafted for a secure fit and steady fuel delivery. To choose a Smaller capacity fuel pump Kit at 255 LPH see our 1971-1972 GTO 255 LPH pump Tank Kit (notched).