1965-1967 Pontiac GTO EFI Fuel Tank with 400 LPH Pump for LS and LT Swaps
When planning a LS or LT engine swap into a 1965 to 1967 Pontiac GTO, reliable fuel delivery is critical and the 1965 to 1967 Pontiac GTO EFI Fuel Tank Kit with 400 LPH Pump is designed to meet that demand with an internal pump module contoured to the A Body chassis. Featuring a precision-fit reservoir molded to the factory underbody, this kit houses a 400 LPH Walbro pump rated for supercharged or over 550 hp applications and maintains consistent flow under high load. The assembly also includes a calibrated sending unit, tank straps, filler neck, vent filter, gaskets and all necessary hardware. Made in the USA, it aligns with original mounting points and uses ethanol-rated components for reliable fueling in classic GTO installations.
Precision Fit for Classic Muscle Rods
The 1965 to 1967 Pontiac GTO EFI Fuel Tank Kit has been engineered to integrate seamlessly with 1966 and 1967 Lemans and Tempest chassis. Its precision fit design eliminates the need for custom modifications, delivering direct installation without trial and error. Mounting surfaces align exactly with original tank points while accommodating LS and LT engine swaps. This tailored approach streamlines restoration projects and preserves factory clearances throughout the frame rails.
Reliable Fuel Delivery Under Extreme Load
At the heart of this conversion lies a 400 LPH Walbro pump calibrated for sustained duty at elevated demand. Whether you are accelerating under wide open throttle or maintaining boost in a supercharged build, fuel flow remains consistent. The kit supports engine outputs in excess of 550 horsepower and ensures stable pressure when driving at high rpm. With this level of supply reliability, fuel starvation during aggressive throttle transitions is effectively eliminated.
Engine and Chassis Integration Expertise
Optimized for A Body chassis platforms, the tank and mounting brackets work in concert with MuscleRods engine mounts to maintain proper driveline angles. This partnership guarantees the LS or LT powerplant sits squarely within the frame, reducing vibration and torque steer. The engineered spacing also accounts for exhaust routing and crossmember clearance, preserving service access to the transmission bellhousing and fuel lines without compromising structural rigidity.
Durable Construction and Quality Assurance
Manufactured in the USA from premium polymers and corrosion resistant hardware, the fuel tank kit withstands the rigors of spirited street driving and track use. All components undergo rigorous cycle testing to validate long term endurance against thermal expansion and chemical exposure. Every assembly is inspected for leak tightness before shipping, offering confidence that your classic GTO restoration will start reliably from the first key turn to the last lap.
For a smaller capacity fuel pump kit at 255 LPH, consider our 1965-1967 Pontiac GTO EFI Fuel Tank Kit - 255 LPH Pump. Trust MuscleRods for precision-built EFI fuel delivery solutions that support both LS and LT installations with reliable performance.