1973-1987 GM C10/C15 K10/K15 EFI Fuel Tank Kit 255 LPH Pump for LS Swap
When fitting an LS motor into a 1973 through 1987 GM eight foot bed truck fuel delivery often requires adaptation to chassis shape and power output demands. This fuel tank kit includes a 255 LPH Walbro pump housed in a steel shell formed to match factory tabs on C10, C15, K10 and K15 frames so installation avoids cutting or welding. Baffled interiors guide fuel toward the pickup during cornering or heavy throttle, preventing starvation under load and maintaining steady pressure for engines up to 550 horsepower. With sending unit, filler neck and mounting hardware included, builders gain a complete package that supports EFI systems and respects original frame geometry from day one.
Factory-Aligned Tank Shell Preserves Frame Integrity
The fuel tank shell is formed to lock into existing frame tabs on 1973 through 1987 GM eight foot bed trucks without cutting or welding. By matching the contours of the chassis and maintaining original mounting points, this design preserves ride height and structural rigidity. Builders benefit from reduced labor since no spacer fabrication or bracket alteration is required. Installation focuses on powertrain integration rather than body modification and maintains the truck's factory stance. This precise alignment also reduces stress on mounting straps which further secures the assembly against vibration.
Immersed Fuel Pump for Reliable Thermal Management
Mounting the 255 LPH Walbro pump fully inside the tank allows the surrounding fuel to act as a coolant and heat sink that moderates operating temperature. This setup maintains consistent pressure even under rapid throttle changes and supports engines rated up to 550 horsepower without performance drop off. Surrounded by liquid, the pump experiences less wear and fewer heat spikes, extending its service life. The integrated regulation system further ensures steady output for precise injector performance. This immersion approach sets a performance standard for fuel delivery in swapped engines.
Baffled Chamber Network Minimizes Fuel Starvation Risk
Internal partitions create multiple zones that channel fuel toward the pickup point during cornering, acceleration or braking maneuvers. These compartments limit slosh by confining liquid movement and keep the pump intake submerged under heavy load. Engineers calibrated the length and opening size of each baffle to balance stable fuel delivery with rapid refill when levels are low. The result is uninterrupted flow and throttle response in demanding driving conditions. Such a targeted approach to fluid management is key for high demand applications that push stock systems beyond their limits.
Comprehensive American Made Kit for LS Conversions
Produced in the United States from rugged steel, the tank body is primed and sealed to resist modern fuel blends and corrosion. The complete package includes a sending unit, filler neck, vent filter, gaskets, tank straps and all mounting hardware needed for a plug and play swap. Each component is selected for chemical compatibility and precision fit, ensuring leak free operation. By delivering every element in one assembly, installers can streamline build time and uphold quality standards. Quality control procedures ensure that each tank meets rigorous dimensional and functional checks before shipping.
To complete your fuel delivery upgrade with a Larger capacity fuel pump Kit at 400 LPH see our 1973-1987 GM Truck EFI Fuel Tank Kit - 400 LPH Pump - 8' bed.