340 LPH Fuel Pump and Fitting Kit for GM LS Engine Swaps
With any LS engine swap in GM 1991 to 2005 chassis, ensuring correct fuel supply is critical; this 340 LPH Fuel Pump and Fitting Kit brings reliable volume directly from the stock tank. By aligning machined fittings with factory ports and including a bracket that secures to original frame points, the kit removes adapter hunting and reduces install time. The Walbro pump delivers 340 liters per hour to satisfy LS motor demands under both steady cruise and aggressive throttle changes while the mounting bracket positions the assembly clear of heat sources and suspension components, preserving line integrity and meeting chassis clearance requirements. Its calibrated flow and durable construction help maintain constant pressure under sudden load shifts, preventing lean spikes that lead to hesitation.
Secure Frame Mounting Under Rear Rails
The custom bracket is engineered to align directly with existing frame rail holes beneath the rear axle, yielding a rock solid attachment without cutting or drilling into the chassis. By positioning the tank assembly under the rails, the design preserves bed space and maintains the vehicle's center of gravity for predictable handling. Installers benefit from a drop-in fit that uses factory hardware locations, reducing labor time and potential fitment errors. The bracket's rigid support also shields the tank from road debris and lateral forces encountered during cornering. This precise alignment makes the upgrade straightforward for 1991 to 2005 GM chassis conversions.
Integral Baffling for Consistent Pump Immersion
Inside the 18 gallon tank, a multi chamber baffling system channels fuel directly to the inlet to prevent air pockets when braking or cornering. Strategically placed partitions keep the pump fully submerged even under high lateral loads, ensuring uninterrupted flow during aggressive maneuvers. This internal arrangement eliminates lean spikes and erratic pressure readings that can lead to hesitation or sensor fault codes in the ECU. Drivers experience smooth throttle transition from idle to wide open throttle without risk of momentary starvation. The robust baffling is fully integrated into the tank shell, requiring no additional modifications.
Factory Gauge Compatible Sending Unit
The included 0 to 90 ohm sending unit matches the resistance profile of stock fuel gauge circuits used in 1991 to 2005 GM models. This direct compatibility avoids complex adapter harnesses or resistor boxes and preserves dash cluster function exactly as original. Calibration across the full range ensures accurate level readings within the 18 gallon capacity, helping drivers avoid surprises on long drives. Installation relies on the same bolt pattern as the factory unit, so there is no need for new mounting holes or seal modifications. The result is a seamless upgrade that retains the classic gauge behavior.
400 LPH Walbro Pump for Steady Fuel Supply
At the core of the kit sits a Walbro fuel pump rated at 400 liters per hour, capable of supporting LS engines up to 750 horsepower. Precision machined internal components minimize pressure drop and maintain stable flow under varying throttle conditions. By controlling heat generation during continuous wide open throttle, the pump prevents performance loss due to vapor lock or cavitation. Its flow capacity meets the demands of both spirited street driving and track duty, keeping ECU fuel commands within the correct range. This reliability simplifies tuning and gives drivers confidence under all load scenarios.
This kit ensures reliable fuel delivery and a straightforward install for your LS swap.