1973-1987 C10/C15 K10/K15 LS EFI Fuel Tank Kit with 255 LPH Pump for 6' Bed
Swapping an LS fuel injected engine into a 1973 to 1987 C10 or K15 raises the challenge of integrating a supply system without changing the floor pan, and this EFI fuel tank kit with a 255 LPH pump slides into six foot beds in GM trucks. It installs using factory mounting points for C10, C15, K10 and K15 chassis so no cutting or fabricating is required, and the in tank Walbro unit supports up to 550 horsepower with steady flow under all conditions. Precision cut gaskets, OEM style vent filters and USA made hardware secure a leak free seal while preserving driveshaft angle and ride height for dependable performance in stock and modified 4L60E and 4L80E applications.
Precision Fitment for LS Engine Conversion in Six Foot Bed Trucks
This tank kit mirrors the original underbody contours of 1973-1987 C10, C15, K10 and K15 chassis, allowing a direct install in a six foot bed without panel cuts or tunnel alterations. By engaging factory mounting points, the supplied straps and hardware secure the assembly in the exact footprint of the stock tank, preserving ride height and avoiding interference with the drive shaft. Installers can follow a straightforward bolt-in sequence that eliminates welding and custom brackets, reducing labor time and potential errors. This approach safeguards the factory frame rails and ensures consistent clearance under varied load conditions for any LS swap project.
In Tank Walbro Pump Design for Stable Flow under All Conditions
At the heart of this kit is a 255 liter per hour Walbro pump mounted inside the fuel reservoir to deliver uninterrupted flow even during hard acceleration or steep inclines. Positioning the module fully submerged reduces fuel temperature rise and limits cavitation, which can disrupt pressure under high demand. Rated to support LS small block engines up to 550 horsepower, the pump maintains a steady supply at the rail to prevent lean spikes and protect internal components. This internal mounting method extends pump life while ensuring smooth start-up and consistent performance across all driving scenarios.
OEM Style Vent Filtration and Precision Gasket Seal
Maintaining correct tank venting is critical for safe operation and fuel system longevity. The kit incorporates an OEM style vent filter that replicates factory flow characteristics, preventing moisture and debris from entering the tank while allowing trapped air to escape. Precision cut gaskets form a leak free interface between the module, filler neck and chassis, and all hardware is made in the USA to meet stringent quality standards. By combining accurate sealing surfaces with a proven vent design, this assembly offers reliable containment and helps sustain optimal pressure for EFI operation.
Transmission Compatibility Preserving Drive Shaft Angle
This fuel tank kit is engineered to work with both 4L60E and 4L80E transmissions without altering the transmission tunnel or crossmember location. By retaining the factory pump height and mounting geometry, it preserves the original drive shaft angle and pinion alignment, which is vital for reducing vibration and wear in high output applications. The precise fit ensures that no additional spacers or adapters are required to clear suspension or exhaust components. As a result, builders benefit from a clean installation that upholds chassis integrity and delivers dependable driveline performance over the long haul.
Count on consistent EFI fuel delivery and leak free sealing for your LS swap. To complete your upgrade with a larger capacity fuel pump Kit at 400 LPH see our 1973-1987 GM Truck EFI Fuel Tank Kit - 400 LPH Pump - 6' bed.