EFI Fuel Tank Kit for LS Engine Swaps on 1973-1987 GM C10/C15/K10/K15 Trucks
Whether you are teeing up an LS engine swap in a 1973 to 1987 GM C10, C15, K10 or K15 pickup with a six foot bed, this EFI fuel tank kit organizes the supply under the floor without any cutting or fabrication. It leverages factory frame points to mount the module directly to the chassis, preserving driveshaft angle and transmission tunnel clearance for 4L60E and 4L80E gearboxes while supplying up to 550 horsepower with its 255 LPH pump. Precision cut gaskets and OEM style vent filters ensure a leak free seal while full pump submersion prevents cavitation during hard acceleration or steep grades, and all components are made in the USA for lasting reliability.
Precision Engineered Fit for 1973-1987 GM Six Foot Bed Frames
The EFI fuel tank kit mounts directly to the original frame points on C10, C15, K10 and K15 trucks, eliminating the need for cutting or fabrication. By aligning precisely with factory holes and using the supplied straps, the installation preserves chassis geometry and ride height. This direct fit approach maintains the driveshaft angle and avoids interference with suspension or exhaust components. The result is a streamlined installation process that reduces labor time while keeping the frame rails intact during an LS engine conversion.
Fully Submerged 255 LPH Walbro Pump Ensuring Consistent Flow
At the heart of this kit is a 255 liter per hour Walbro pump rated to support up to 550 horsepower. Enclosing the pump completely below the fuel level eradicates cavitation risks during hard acceleration or on steep inclines. Immersion also dissipates heat buildup, delivering stable pressure under all driving conditions. This cool operating environment extends pump service life and prevents interruptions that could compromise throttle response or engine performance.
OEM Style Vent Filtering and Precision Gaskets for Leak Free Operation
Reliable venting and sealing are critical to any EFI system, and this kit employs OEM pattern filters alongside precision cut gaskets to meet those demands. The vent filter replicates factory flow characteristics, keeping moisture and debris out while allowing air to escape as fuel levels change. Each gasket is laser cut to match the module, filler neck and tank body, creating a flawless seal through thermal cycles and vibration. All hardware components are manufactured in the USA to tight tolerances, ensuring consistent containment and pressure control.
Maintained Clearance for 4L60E and 4L80E Transmission Integration
This tank design preserves the stock pump height and location, allowing 4L60E and 4L80E gearboxes to install without modifying the transmission tunnel or crossmembers. Keeping the original mounting geometry safeguards proper pinion angle and reduces driveline vibration. Consistent shaft alignment protects u joints and bearings from premature wear, while avoiding custom brackets simplifies the build and produces a clean, professional result. This thoughtful packaging streamlines LS swaps on GM six foot bed pickups.
Count on reliable fuel delivery with this kit and for a Larger capacity fuel pump Kit at 400 LPH consider our 1973-1987 GM Truck EFI Fuel Tank Kit - 400 LPH Pump - 6' bed.