EFI Fuel Tank Kit for 1965 Pontiac Lemans LS and LT Engine Swap
If you're installing an LS or LT powerplant in a 1965 Pontiac Lemans A-Body chassis, this EFI fuel tank kit with a high-flow Walbro 400 LPH pump tackles unstable fuel delivery under heavy throttle. The steel tank is shaped to match the original contours and bolts into factory mounting points for a clean fit that avoids lengthy modifications. It includes a calibrated sending unit to translate fuel levels into precise signals for the stock gauge cluster, keeping you informed during spirited drives. Cooling benefits from the submerged pump design reduce vapor lock risk under sustained throttle events. Sealed vents and durable gaskets maintain proper system pressure while preventing contamination and leaks throughout varying driving conditions.
Submerged Walbro 400 LPH Pump Ensuring Steady Fuel Delivery
The Walbro 400 LPH pump sits fully submerged in the EFI tank to draw cooling benefits from the surrounding fuel, keeping internal temperatures low during extended wide open throttle runs. This submerged design virtually eliminates vapor lock by maintaining liquid contact at all times, even in hot underbody environments or when the vehicle is parked after spirited driving. It delivers consistent flow beyond 550 horsepower demands, supporting both naturally aspirated and boosted LS or LT applications. Fuel starvation is prevented under rapid throttle movements, ensuring throttle response stays crisp and predictable. By relying on a proven pump architecture, this assembly safeguards long term reliability in performance scenarios.
Factory Contour Steel Tank Matching Original A Body Profile
Crafted from stamped steel, the tank follows the exact lines of the 1965 Pontiac Lemans A Body chassis, preserving the classic silhouette without requiring frame alterations. Mounting points, filler neck location and strap brackets reuse the factory holes, simplifying installation and reducing labor time. The robust steel construction resists deformation or flex even under full load, while its finish withstands corrosion from road debris and fuel vapors. Integrating modern EFI hardware into a vintage design, it honors the period correct appearance while delivering modern functionality. This approach keeps the underbody tidy and maintains clearances in tight wheel wells.
Calibrated Sending Unit Delivering Accurate Gauge Data
The precision fuel sender translates real time fuel level into reliable electrical signals for the stock gauge cluster, eliminating common readout errors in EFI conversions. Its float arm moves freely within the tank cavity, compensating for pitch and roll without binding or wear. Manufactured to OEM tolerances, the sending unit resists drift even after thousands of miles, helping you plan service stops with confidence on long outings. Consistent gauge readings prevent gravity drop surprises, so drivers can focus on the road rather than fuel worries. The robust design also stands up to vibration and temperature swings found in daily and weekend driving.
Vent Filtration and Precision Gaskets Maintaining Pressure Integrity
A dedicated vent filter blocks airborne contaminants from entering the tank while allowing smooth pressure equalization as fuel is drawn or added. High quality gaskets seal each joint to prevent leaks and maintain the slight positive pressure needed for EFI operation. Together these components form a cohesive system that resists water intrusion and debris buildup, safeguarding pump and sender performance. Proper venting also reduces throttle response lag by stabilizing fuel pressure during rapid engine load changes. This integrated approach ensures the entire fuel tank module remains reliable across varying weather and driving conditions.
Trust MuscleRods for a precise fit and consistent pressure. To complement your setup with a Smaller capacity fuel pump Kit at 255 LPH consider our 1965 Pontiac Lemans EFI Fuel Tank Kit - 255 LPH Pump.