LS and LT EFI Fuel Tank Kit for 1968-1970 Pontiac GTO/Lemans A-Body
When swapping an LS or LT engine into a 1968 to 1970 Pontiac GTO and Lemans A Body chassis, maintaining steady fuel pressure under hard cornering and high output is vital. The 1968 to 1970 GTO / Lemans EFI Fuel Tank Kit with 400 LPH Pump features a precision formed steel tank that is notched for exhaust tube and tire clearance without altering the floorpan. Inside the tank, a submerged 400 LPH Walbro pump module with sending unit, straps, filler neck, vent filter, gaskets and hardware aligns with original mounting points. Rated for supercharged or over 550 hp applications, this all in one kit delivers a flooded inlet to avoid cavitation and ensures accurate fuel level readings for LS and LT engine conversions.
Precision Notched Fuel Tank Design
The 1968-1970 GTO / Lemans EFI Fuel Tank Kit features a tank shell with precision notches that allow generous tire sidewall clearance and unobstructed exhaust routing. These sculpted reliefs eliminate the need for modification of the original chassis rails, preserving structural integrity while ensuring safe operation with large-diameter exhaust systems. When combined with MuscleRods engine mounts, this configuration maintains correct engine placement and drivetrain angles, guarding against interference during full suspension travel and heavy acceleration.
Robust 400 LPH Fuel Pump Delivery
At the heart of the system is a 400 LPH Walbro pump calibrated to sustain consistent fuel flow under extreme demand. The unit copes with rapid throttle transitions, steep banking angles and pressure fluctuations typical of forced induction. It reliably feeds supercharged engine combinations that exceed 550 horsepower without risk of starvation. Precision internal components and matched check valves hold steady pressure above recommended thresholds, supporting tuned fuel injection maps and delivering stable performance through extended track sessions.
Engine Conversion Compatibility and Material Durability
This fuel tank assembly is tailored specifically for LS and LT swaps in first-generation GTO and Lemans platforms. Critical mounting points align with factory floor pan contours and crossmember brackets to accept common conversion kits without fabrication. In addition, the unit housing and pickup fittings are constructed from premium corrosion-resistant alloys and high-strength polymers. This provenance ensures years of dependable operation in both street and competition environments while preserving original sheetmetal fitment and underbody clearance.
For a smaller capacity fuel pump Kit at 255 LPH, consider our 1968-1970 GTO 255 LPH pump Tank Kit.