1971-1972 Pontiac GTO/Lemans EFI Fuel Tank Kit for LS and LT Engines
Dropping an LS or LT engine into a Pontiac GTO or Lemans from 1971 and 1972 often stalls out at the fuel tank where original units can starve modern injectors. This EFI fuel tank kit with 400 LPH pump and notched steel tank clears exhaust piping and wheel wells while providing steady flow for engines over 550 horsepower. Integrated sending unit and vent filter deliver precise fuel level feedback under sustained throttle. All required mounting hardware and filler neck adapter bolt to the factory frame rails so you can complete installation without cutting or welding.
Precision Notched Tank Geometry Maintains Factory Frame Integrity
The custom notched profile of this fuel tank is sculpted to clear exhaust routing and wheel wells under the stock frame rails. By following the original chassis lines, the design preserves ride height and guards against heat transfer that can warp lines or cause tire interference. This precision fit eliminates the need to cut or weld the frame, saving hours in labor while keeping the structure exactly as it left the factory. Each contour is mapped to the 1971 1972 GTO and Lemans underbody to ensure a seamless fit and confident installation.
High Capacity Walbro Pump Ensures Steady Fuel Delivery for 550 Plus Horsepower Engines
Central to the kit is a 400 liters per hour Walbro pump that delivers a consistent flow even at wide open throttle. Modern LS and LT engines with outputs above 550 hp require uninterrupted fuel supply to avoid lean conditions that can harm pistons and valves. The pump's robust design minimizes cavitation and maintains pressure under aggressive acceleration, whether on the street or track. It has been chosen for its proven track record in high stress applications and long service life.
Integrated Tank Module Optimizes Fuel Level Accuracy and Reduces Slosh
This in tank assembly combines the fuel pump, sending unit and filter into a single compact solution that simplifies plumbing and wiring. The calibrated float geometry delivers accurate readings that eliminate the spiking or false empty signals common in retrofit systems. Inside the tank, the streamlined module reduces dead head areas and limits fuel movement, keeping the pump submerged to extend its life and maintain constant pressure. Factory style connectors seal securely to prevent leaks and make installation straightforward.
Complete Bolt In Kit Speeds Up Retrofit Without Cutting or Welding
Every component needed to modernize the fuel system comes in the box, from tank straps and filler neck to vent filter, gaskets and mounting hardware. All brackets and lines are pre shaped to match the contours of 1971 and 1972 Pontiac frames for a direct bolt in solution. No extra parts are required and no time is lost hunting down adapters or specialty fittings. This plug and play approach reduces shop time and ensures each piece works together for reliable performance.
Count on MuscleRods precision for your retrofit and to complete your Smaller capacity fuel pump Kit at 255 LPH see our 1971-1972 GTO 255 LPH pump Tank Kit (notched).