LS and LT EFI Fuel Tank Kit for 1968-1970 Pontiac GTO and Lemans
When fitting a powerful LS or LT engine into a 1968 to 1970 A Body GTO or Lemans chassis the 1968-1970 GTO / Lemans EFI Fuel Tank Kit - 400 LPH Pump solves underbody clearance conflicts and supports sustained fuel delivery. Constructed from heavy gauge steel with a notched profile this tank carves space for header pipes and rear suspension links without cutting into structural walls. Positioned inside the tank the Walbro pump delivers 400 liters per hour to guard against cavitation in demanding driving conditions. Technicians will benefit from the complete hardware package and precise fitment that align with original mounting points for a straightforward LS or LT swap.
Integrated Submerged Pump for Reliable Fuel Pressure
Immersing the 400 liter per hour Walbro pump in the fuel supply minimizes cavitation by ensuring the impeller is always flooded, even under cornering forces or hard acceleration. This design also reduces operating temperature by drawing cooler fuel from the tank base, helping maintain stable fuel pressure for demanding LS or LT installations. Consistent delivery under sudden throttle inputs is crucial when supporting supercharged systems or engines above 550 horsepower, as it preserves injector calibration and prevents lean spikes. In tank mounting further dampens noise and vibration under the floorpan, leading to quieter operation and less fatigue during extended drives. The proven pump architecture offers long term durability, reducing the risk of premature wear in high duty cycle applications.
Engineered Notched Profile Optimizes Underbody Clearance
The notched tank contour is precision formed to carve space for header tubes and rear suspension links without cutting into structural members of the floorpan. By maintaining even wall thickness around each cutout, the profile resists heat soak and prevents vapor lock when running spirited or on the track. Fitment matches the original chassis geometry so installers eliminate complex metal shaping and maintain factory ride height alignment. This careful approach reduces installation time and preserves the factory underbody lines, delivering a cleaner appearance. Additionally, the separation of clearance zones protects the tank from road debris impact and sharp objects under extreme driving conditions.
Complete Installation Kit Streamlines LS and LT Swaps
Every element required for mounting is included: the pump module, sending unit, straps, filler neck, vent filter, gaskets and precision hardware engineered to match original mounting points. Laser measured components ensure each bracket and seal aligns perfectly, removing the need for mock up or trial modifications. The calibrated sending unit sends accurate fuel level data to the gauge cluster, improving driver awareness and preventing surprises during long trips. Integrated vent filtration allows pressure equalization while keeping contaminants out of the tank. This comprehensive approach significantly cuts labor costs and eliminates delays caused by missing or mismatched parts.
Heavy Gauge Steel Construction Ensures Tank Integrity
Constructed from robust steel plate, the tank resists deformation from rough roads and aggressive cornering, preserving its shape and preventing stress cracking. Precision welded seams reinforce critical junctions and form a leak proof vessel that stands up to temperature fluctuations and high load cycles. The solid assembly withstands underbody stone impacts and moisture exposure without accelerated corrosion, supporting reliable operation over many seasons. Even without additional surface treatments, the thick steel and quality welding deliver exceptional lifespan compared with thin or stamped tank designs. This sturdy build safeguards both the fuel system and vehicle occupants by preventing leaks and vapor intrusion.
Rely on MuscleRods precision for a seamless fuel system upgrade. For a Smaller capacity fuel pump Kit at 255 LPH consider our 1968-1970 GTO 255 LPH pump Tank Kit.