340 LPH LS Fuel Pump and Fitting Kit for 1991-2005 GM Models
When planning an LS or LT engine transplant into 1991 to 2005 GM cars and trucks, ensuring reliable EFI supply can quickly become a major concern with stock pumps. This 340 LPH Fuel Pump and Fitting Kit is engineered to match the higher flow demands of modern small block powerplants without cutting lines or hunting adapters. Installation is straightforward thanks to precision fittings and a universal bracket that align with factory mounts. By maintaining steady pressure under sustained loads and cornering forces, the 340 LPH pump keeps your engine running clean and responsive from first fire to full throttle blasts.
High Flow Walbro 400 LPH Pump Ensuring Peak Engine Support
The integrated Walbro 400 LPH pump is calibrated to sustain fuel flow demands of high-output LS engines, supporting applications up to 750 horsepower without hesitation. Its precision-crafted internals limit pressure drop and reduce heat buildup, which helps maintain fuel temperature control during extended wide open throttle periods. By delivering a steady volume of fuel rather than fluctuating output, the pump prevents lean spikes that can damage injectors or lead to hesitation under load. This level of consistency is critical for both spirited street acceleration and track conditions where instantaneous response and reliability are nonnegotiable.
Advanced Internal Baffling for Uninterrupted Fuel Pickup
Inside the tank, an intricate baffling system channels fuel to the pump inlet and keeps it submerged during cornering, braking, and acceleration. Carefully placed baffle plates and partitions control fluid momentum, eliminating air pockets that cause momentary starvation and erratic sensor readings. This design safeguards against fuel surge, preserving consistent pressure at the regulator and stable ECU calibration under dynamic driving. The result is smooth throttle modulation from stoplight launches through sweeping turns without risking lean conditions or loss of power.
Space Saving Frame Rail Mount Installation
Custom brackets align precisely with existing frame rail holes, allowing the tank to sit beneath the rear rails behind the axle without modifying sheet metal or bed components. Under-rail placement frees up bed space for cargo or gear and lowers the vehicle's center of gravity for improved handling balance. By distributing weight evenly and maintaining a compact footprint, the installation enhances chassis dynamics while protecting the tank from road debris. The straightforward fitment process reduces labor time and preserves the truck's original appearance.
Seamless Gauge Compatibility and Classic Bed Fill Design
A 0 to 90 ohm sending unit matches factory gauge circuitry for direct integration, eliminating the need for adapters or complex rewiring. Combined with an 18 gallon capacity and a period-correct bed fill neck, the system extends driving range while maintaining vintage refueling ergonomics. Refueling through the bed fill aperture offers the same feel as a factory system, blending classic style with modern EFI reliability. Together, these features ensure accurate fuel level readings and simplify service without sacrificing the look of your late sixties or early seventies Chevy truck.
Engineered to deliver consistent fuel supply and straightforward installation for your LS project.