High-Flow 255 LPH Fuel Line and Regulator for LS Engine Swaps
An LS engine swap project demands precise fuel control under varying conditions and the Fuel Line and Regulator Kit - 255 LPH meets the need for consistent pressure and material resistance. Featuring a PTFE inner tube wrapped in stainless steel braid and a factory preset 58 psi regulator, this assembly stands up to ethanol blends and engine vibration while maintaining injector flow. By eliminating a separate return hose the returnless layout keeps fuel cooler and frees space for routing and accessories. Installation is streamlined with machined AN fittings, clamps and mounting hardware for a tidy underhood presentation.
Robust PTFE stainless steel braid for lasting integrity
The core PTFE fuel line features a pure polytetrafluoroethylene inner tube that resists chemical attack from modern ethanol blends while maintaining dimensional stability under high temperature. Surrounding this tube, the heavy gauge stainless steel braid provides a protective shield against abrasion and ensures the line holds its shape when exposed to engine vibration or contact with wiring and chassis surfaces. This combination of materials prevents kinks and leaks that can disrupt fuel flow during spirited acceleration. Manufactured in the USA from corrosion resistant alloys, the assembly delivers consistent performance in both daily driving and sustained track operation.
Precise fuel regulation with integrated filter assembly
The integrated OE style filter and regulator module streamlines fuel management by combining two critical functions in one compact housing. With a factory preset 58 psi setting, the regulator maintains the exact pressure the engine control unit expects, preventing surges or drops that could compromise throttle response and fuel atomization. The built in filter element captures contaminants before they reach the injectors, extending service intervals and protecting precision fuel metering components. By reducing plumbing complexity and eliminating separate adjustment hardware, this design cuts leak points and simplifies both initial installation and routine maintenance for any LS swap application.
Returnless layout benefits for cooler fuel supply
The returnless arrangement eliminates the need for a separate recirculation hose, keeping fuel temperature stable by avoiding heat soak from the engine block. Shorter line runs reduce pressure drop and make routing simpler in tight engine compartments, freeing space for coolant lines or accessories. With fuel delivered directly to the rail without returning to the tank, density remains consistent even under stop and go traffic or extended idle periods. This efficient layout not only enhances power delivery but also presents a cleaner underhood appearance while improving service access for routine inspection and repair.
Comprehensive kit components for streamlined installation
Every component required for a leak free installation is supplied in this comprehensive kit. The braided fuel line, regulator filter combo, and precision screw together fittings match OE rail connections and ensure a tight seal without the need for additional adapters. Assorted AN connectors adapt lines between the tank, pump, and rail, while sturdy clamps and mounting brackets secure the assembly to the chassis and guard against vibration induced fatigue. This all in one package reduces assembly time, minimizes potential leak points, and instills confidence in long term reliability across street and track applications.
Count on reliable pressure control under all driving conditions. For the same kit but at a higher capacity of 400 LPH see our Fuel Line and Regulator Kit - 400 LPH.