LS and LT EFI Fuel Tank Kit for 1973-1987 C10/C15 K10/K15 Chevy GMC Trucks
Whether you are fitting an LS or LT engine into a classic eight foot bed C10, C15, K10 or K15 chassis, the 1973-1987 GM Truck EFI Fuel Tank Kit ensures a reliable fuel supply for applications rated beyond 550 horsepower. Designed for electronic fuel injection conversions, the kit uses a precision pressed steel tank that installs with factory gauge wells and mounting points in trucks from 1973 through 1987. At its core is a in tank pump module housing a Walbro 400 liter per hour fuel pump paired with a sending unit and vent filter to maintain stable pressure under cornering or rough terrain. Included tank straps, filler neck, gaskets and mounting hardware secure the assembly for a direct fit without frame or floor alterations.
Fuel Delivery Reliability
The EFI Fuel Tank Kit for GM trucks from 1973 through 1987 is anchored by a high-flow 400 LPH pump built to support supercharged or 550 plus hp engines. Delivering a steady stream of fuel under all operating conditions, this pump guards against lean spots and power loss during rapid throttle events. Locating the pump module inside the tank shortens feed lines and reduces exposure to heat and vibration, leading to more stable fuel pressure and longer component life. Integrated filtration and sealed electrical connectors simplify plumbing and wiring, reducing installation time for both professional builders and weekend mechanics.
Engine Swap Integration
Designed specifically for LS and LT powerplants, this kit works in concert with MuscleRods mounts to ensure accurate engine placement and proper drivetrain angles. The tank's deep sump matches the oil pan clearance of Gen III and IV blocks, guaranteeing full pump prime even on steep inclines. When paired with MuscleRods bracket geometry, the system maintains factory style drive shaft alignment and body clearance. This precision fit removes guesswork, allows for a straightforward bolt-in approach, and streamlines the path to final calibration and performance testing.
Precise Fit for 8 Foot Beds
Custom tailored for GM trucks from 1973 through 1987 with 8 foot beds, the tank drops into frame rails without cutting or adapter plates. The filler neck and sending unit flange align with the original floor pan opening for a seamless look. Preformed steel straps attach to factory weld points, delivering support that matches or exceeds OEM standards. Each mounting pad and side bracket is positioned to retain a stock appearance beneath the bed, allowing you to restore or upgrade without compromising the truck's original styling.
Built to Withstand the Elements
Manufactured from corrosion resistant steel and finished with a durable coating, this tank stands up to daily street use and demanding off road conditions. Heavy wall construction resists dents and deformation, while internal baffling minimizes fuel slosh during acceleration, braking, and cornering. All fittings and connectors use O-rings rated for ethanol blends to prevent leaks over time. Maintenance is simplified by a spin on filter cartridge and a plug and play wiring harness that connects directly to GM power and ground leads, keeping service intervals quick and hassle free.
For a smaller capacity fuel pump option at 255 LPH, consider our 1973-1987 GM Truck EFI Fuel Tank Kit - 255 LPH Pump - 8' bed.