Return Style Fuel Line and Filter Kit for LS Engine Swap
Many LS swap projects stumble when surplus fuel and microscopic debris overwhelm factory return paths and filters. The Return Style Fuel Line and Filter Kit integrates braided PTFE supply and return hoses with a billet aluminum element to maintain a consistent 58 psi rail pressure while capturing contaminant particles. Precision machined ports and AN fittings align with early LS mounting points, and each component resists ethanol blends and abrasion under heat. As a result, this assembly delivers reliable operation without extra fabrication or guesswork.
PTFE Stainless Steel Braided Lines Ensuring Chemical and Mechanical Durability
The fuel supply and return lines feature a smooth PTFE inner core that offers exceptional compatibility with modern ethanol blends and resists swelling or deterioration over time. Surrounding the core, a stainless steel braid provides tensile strength and shields the hoses from abrasion and harsh engine bay heat. A protective black jacket further guards against chafing on nearby components and prevents contact damage to wiring or painted surfaces. Tested to hold a steady 58 psi under heat soak and heavy load, these assemblies preserve consistent flow and injector performance. Their compact profile and flexibility also allow for clean routing in tight LS swap installations without extra modifications.
Return Style Routing Preserving 58 PSI Rail Pressure During Demanding Operation
This kit's return style layout continuously circulates excess fuel from the rail back to the tank, holding rail pressure at an exact 58 psi under all conditions. By moving surplus fuel through the rail, the design minimizes heat buildup and sharply reduces the chance of vapor lock during spirited driving or hot under hood environments. The open loop arrangement matches early LS on-rail regulator mounting points, so hoses align with factory locations and avoid sharp bends that could impede flow. Maintaining constant flow preserves uniform injector spray patterns and prevents sudden pressure spikes that can wear internal seals. The result is steady fuel delivery and optimized injector longevity with every engine start.
Billet Aluminum Fuel Filter Housing for Simple Service and Solid Protection
Constructed from precision machined billet aluminum, the filter housing resists corrosion and holds its shape even when exposed to constant heat and fuel contact. Inside, a high flow media element captures abrasive particles before they can reach sensitive injector components, safeguarding engine health. Service requires no tools or hose removal-simply hand-unscrew the cap to swap the filter element and return the vehicle to service. Precision AN style ports on the housing align with the included fittings, ensuring a leak-free connection every time. This robust design delivers reliable protection while making routine maintenance fast and trouble free.
Corrosion Resistant AN Fittings and Mounting Hardware for Precise LS Swap Fitment
Every fitting and clamp in this kit is made from corrosion resistant materials, including black anodized aluminum and stainless steel hardware built to withstand road moisture and fuel exposure. Two piece AN fittings screw together to clamp onto the braided hoses without sealant or special tools, guaranteeing a tight connection. A comprehensive set of AN adapter fittings handles feed and return connections at the tank, filter, and rail, eliminating the need for custom fabrication. Formed brackets and line clamps conform to early LS engine contours, securing hoses against vibration and reducing long term wear. Installation is straightforward with standard hand tools, producing a clean, factory style appearance under the hood.
Engineered to maintain consistent rail pressure and simplify maintenance in your LS swap.