1965 Pontiac Lemans A-Body LS EFI Fuel Tank Kit with 255 LPH Pump
Swapping an LS engine into a 1965 Pontiac Lemans A Body calls for a fuel system that maintains steady flow under demanding conditions and the 1965 Pontiac Lemans EFI Fuel Tank Kit 255 LPH Pump answers with direct fit components engineered for engines up to 550 hp. Installation uses original strap locations and retains the factory filler neck orientation to preserve chassis geometry and underbody clearance without the need to remove frame rails or fabricate new brackets. Thanks to the Walbro 255 LPH pump inside the tank, fuel stays cooled by immersion during spirited driving and the calibrated sending unit delivers accurate level readings to the stock gauge cluster.
OEM Style Integration for A Body Chassis
The EFI Fuel Tank Kit is engineered to drop into the original mounting points of the 1965 Pontiac Lemans A Body without altering factory strap locations or filler neck orientation. By aligning precisely with stock attachment pads, this design maintains the vehicle's underbody clearance and original angles, preserving the classic profile that defines the car's period correct silhouette. Installers avoid cutting frame rails or fabricating brackets, which significantly reduces labor time and the potential for installation errors. This approach also ensures that chassis integrity remains intact, eliminating rattles and fitment issues down the road. As a result, restoration and swap projects move forward efficiently while retaining the geometry and style of the 1960s design.
Immersion Cooled Pump Delivering Steady Pressure
At the core of the system is a Walbro 255 LPH in-tank pump capable of supporting engines up to 550 horsepower. Positioned inside the tank, the pump benefits from continuous contact with fuel, which dissipates heat and helps prevent vapor lock under high demand. This immersion cooling effect also reduces the risk of aeration and cavitation when the driver transitions quickly from idle to full throttle. The steady flow rate ensures that even during spirited acceleration, the engine never experiences lean conditions that can lead to detonation or damage. In practice, this translates to more immediate throttle response, predictable power delivery and a longer service life for the pump.
Calibrated Sending Unit Ensuring Fuel Level Accuracy
The precision sending unit included in this kit features a float and sensor assembly tailored for electronic fuel injection systems. Its calibrated resistance curve closely matches the factory gauge cluster, delivering clear and repeatable fuel level readings that prevent the guesswork of older mechanical systems. Consistent data from the sending unit allows drivers to plan refueling stops accurately, avoiding unexpected interruptions on long drives. For those tuning engine management parameters, reliable feedback supports precise fuel usage analysis and mapping adjustments. The sending unit integrates seamlessly with the original wiring harness, maintaining an OEM appearance behind the dash.
All Inclusive US Made Fuel System Kit
This fuel tank kit brings together every component needed for a complete EFI conversion on a 1965 Lemans A Body, all manufactured in the USA to strict quality standards. Alongside the Walbro pump and sending unit, it includes tank straps, a replacement filler neck, vent filter, molded gaskets and all required mounting hardware. Each piece is inspected for fit and finish, ensuring compatibility and reliable performance from the first startup. By sourcing parts designed to work together, installers eliminate the challenge of mixing and matching components from multiple vendors. The result is a streamlined installation process that saves shop hours, reduces risk and preserves the vehicle's authentic underbody appearance.
Count on this fuel tank kit for reliable supply under spirited driving conditions and explore our larger capacity fuel pump kit at 400 LPH with the 1965 Pontiac Lemans EFI Fuel Tank Kit - 400 LPH Pump.