LS Fuel Line Fitting Kit for G-Body Swaps
If you are tackling an LS swap into a classic G Body chassis, the Fuel Fitting Kit for G-Body ensures fuel flow paths follow the factory frame rails with precision and straight-forward installation. Each kit includes presized AN fittings matched to factory port geometry so connectors engage threads smoothly to create secure, leakproof joins without trimming or adaptor fittings. Routing geometry is engineered to preserve internal diameter at every bend and maintain consistent pressure under rapid load changes in demanding driving conditions. The stainless steel construction resists corrosion and provides stable regulator calibration for sharper throttle response when you push the engine hard.
Precision Machined AN Fittings Ensuring Seamless Fuel Seal
The kit features AN fittings that are precision machined to match the factory port geometry on G Body fuel rails with exceptionally tight tolerances. Each fitting engages threads smoothly and creates a controlled seal surface area, eliminating the need for adaptors and trimming that can introduce leak paths or inconsistent flow. By preserving uniform contact and concentric alignment between hose and rail port, the system maintains stable fuel pressure even under rapid throttle transitions and wide open throttle events. Technicians report faster setup and greater confidence when dialing in regulator pressure, since the fittings hold calibration values with minimal drift. This design also supports the use of high flow pumps without risking pressure collapse at critical engine speeds. As a result, throttle response remains sharp and predictable under all driving conditions.
Engineered Frame Rail Routing for Consistent Fuel Pressure
Routing fuel lines along the G Body frame rails requires precise bending and adapter orientation to preserve internal diameter at every bend. The Fuel Fitting Kit guides hoses along the factory chassis contour using fixed geometry adapters, avoiding kinks or sharp turns that can restrict fuel flow under load. This continuous bore design prevents pressure drops and supports regulator accuracy when the engine demands bursts of fuel during hard acceleration. The predefined routing path also reduces the risk of interference with brake lines, suspension components, or chassis brackets, ensuring a clean undercarriage layout. Inspecting the system becomes straightforward, as the hoses follow a consistent path with clear access points for fittings and clamps. By combining path optimization with port matched connections, the kit upholds a reliable supply of fuel to the rail without compromise.
Stainless Steel Construction for Corrosion Resistance and Calibration Stability
All major components are fabricated from premium stainless steel alloy chosen for its resistance to fuel additives, moisture intrusion, and sustained vibration found in classic chassis swaps. Unlike lower grade materials that fatigue or corrode over time, this steel preserves internal passages free of debris and resists pitting that can alter pressure readings at the regulator. Corrosion resistance extends service life and minimizes maintenance intervals, delivering consistent performance from street use to track sessions. The stable material properties also prevent shifts in regulator calibration as temperatures fluctuate between cruising and full load. With no coatings to chip or wear away, the bare metal finish maintains uniform wall thickness and leakproof integrity throughout its service life. Owners benefit from reduced replacement cycles and greater peace of mind when pushing the engine to its limits.
Streamlined Kit Integration for Rapid Installation
The Fuel Fitting Kit is engineered for professional shop workflows with presized components that install directly onto the stock sending unit and fuel regulator ports. Each AN connector arrives labeled with size and orientation, removing guesswork and cutting down on mockup time before final assembly. Technicians follow clear instructions that outline torque specs, hose clamp locations, and step by step routing guidance to ensure consistent outcomes on every build. By removing the need for cutting, bending tubing, or adapting off the shelf fittings, the kit reduces labor hours and cost on complex LS to G Body conversions. The integrated design yields a clean finished appearance that matches factory undercarriage lines, maximizing space and minimizing clutter. This workflow efficiency supports quick turnarounds without sacrificing the precision required for high demand fuel system performance.
Count on reliable fuel delivery and leakproof joins. For the matching Related FLT product see our EFI Sending Unit and In-Tank Fuel Pump for G-Body.