340 LPH Fuel Pump and Fitting Kit for LS Engine Conversions
When converting a 1991 to 2005 GM chassis to LS power, maintaining stable fuel supply is critical and the 340 LPH Fuel Pump and Fitting Kit is specifically engineered to deliver consistent flow without guesswork. Its 340 liter per hour pump mounts directly inside compatible tank outlets and pairs with precision bulkhead fittings and adapters crafted for GM factory ports. Installation time is cut thanks to plug and play hardware that resists leaks, while the arrangement of in line connectors ensures accurate EFI pressure under spirited driving and heavy load conditions. Choosing this kit removes the need for custom bracket fabrication and preserves underframe clearance for a clean installation footprint.
EFI-ready Fuel Delivery for LS Applications
The core of this kit is a Walbro 255 LPH pump engineered to support LS engine output up to 550 horsepower while seamlessly integrating with modern fuel injection controls. By mounting the pump directly inside compatible tank outlets, the design maintains a stable fuel pressure under rapid throttle changes and steady cruising alike. This EFI-ready module eliminates the need for an external booster pump and custom mounting brackets, cutting down on install time and potential leak points. Its precise flow rate and compatibility with factory injector feeds ensure that the engine's command over fuel delivery remains accurate even under high load.
Internal Baffling Design Guarding Against Starvation
Within the reservoir, a network of partitions divides the volume into smaller chambers that dampen liquid movement during acceleration, braking and cornering. This arrangement keeps the pump inlet submerged at all times, preventing air ingestion that would otherwise cause hesitation or stalling. Reduced slosh noise is another benefit, making for a quieter ride when carrying low fuel levels. For builds that see towing or spirited driving, this baffling ensures continuous flow even when the tank is below half capacity.
18 Gallon Capacity Enhancing Driving Range
An 18 gallon reservoir gives the LS conversion a notable advantage in range, reducing the need for frequent stops on long haul or track outings. A larger supply also helps stabilize fuel temperature and pressure, as the increased volume resists rapid heat soak and maintains consistent pump inlet conditions. This capacity is especially valuable in vehicles fitted with performance cams and high-flow injectors that demand a constant supply. Overall, it allows builders to balance power goals with practical usability on street and trail.
Precision Bulkhead Fittings Streamlining Installation
Built to match GM factory outlets, the precision-machined bulkhead fittings and adapters in this kit provide a leak-resistant connection without extra hoses or clamps. Each adapter aligns perfectly with stock chassis ports, so installers can plug in the pump module and feed line without trimming frame rails or fabricating brackets. The fittings also isolate electrical and fuel passages, simplifying wiring harness and line routing under the vehicle. With these components in place, builders spend less time troubleshooting leaks and more time dialing in the engine's performance.
Engineered for a precise fit within GM chassis and designed to deliver reliable fuel flow under all driving conditions.