1978-1988 G-Body LS EFI Fuel Tank Kit with 255 LPH Pump for Monte Carlo/Malibu/Grand Prix
Whether you are fitting an LS into a 1978-1988 Chevy Monte Carlo, Chevy Malibu or Pontiac Grand Prix, the 1978-1988 Monte Carlo, Malibu, Grand Prix EFI Fuel Tank Kit - 255 LPH Pump provides a direct replacement for your stock tank that installs on original frame mounts. The in tank fuel pump module houses a Walbro motor rated at 255 LPH and supports 550 hp engines while the integrated fuel level sending unit ties into your factory gauge. Mounting straps, filler neck, vent filter, gaskets and hardware are included; no cutting or welding required. Fabricated in the USA from corrosion resistant steel with precision weld seams, the tank resists chassis flex and vibration.
Advanced Fuel Delivery Performance
The 1978-1988 Monte Carlo, 1978-1988 Malibu, 1978-1987 Grand Prix EFI Fuel Tank Kit harnesses a robust 255 LPH Walbro pump to support LS powerplants up to 550 horsepower. This capacity ensures stable pressure under high demand, allowing sustained acceleration and consistent injector flow even during extended runs. By maintaining a steady volume of fuel at elevated engine loads, the system minimizes the risk of lean conditions that can harm pistons, rings, and cylinder walls. The in tank location optimizes fuel pickup and cooling, reducing vapor lock and ensuring fast response when transitioning from idle to wide-open throttle. For builders targeting street, strip, or road course applications, this kit delivers the reserve and reliability required to fully exploit an LS's potential.
Engine Compatibility and Bolt-In Installation
Designed to fit the fuel tank openings of specific GM A-body and G-body models, this EFI Fuel Tank Kit requires no cutting, welding, or filler panels. The bolt-in design aligns with factory mounting points for smooth integration into the original frame rails and crossmember geometry. Installers save hours of fabrication work by simply dropping the module into the existing tank bucket and fastening with supplied hardware. This targeted approach preserves the vehicle's underbody structure and eliminates concerns over misaligned fittings or altered fuel line angles, providing a secure, leak-free connection from the pump outlet to the stock fuel sending line.
Integrated Level Sensing and American Craftsmanship
An onboard sending unit within the module delivers real-time, accurate readings to the factory gauge cluster, keeping drivers informed of remaining fuel reserves without aftermarket adaptors or calibration adjustments. Manufactured in the USA under stringent quality control, each assembly undergoes pressure testing and electrical validation before shipping. Corrosion-resistant materials in the sender float and wiring harness ensure consistent performance in varying temperature and humidity conditions. Backed by industry-leading support, this tank kit offers a precise, durable solution for veteran restorers and modern restomod builds alike.
To complete your Larger capacity fuel pump Kit at 400 LPH, consider our 1978-1988 Monte Carlo 400 LPH pump Tank Kit.