LS Swap EFI Fuel Tank Kit with 400 LPH Pump for 1963-1967 Chevy Corvette
Swapping an LS engine into a 1963 through 1967 Chevrolet Corvette Y body chassis demands a fuel system capable of supporting supercharged or 550+ horsepower applications without hesitation. The 1963 through 1967 Corvette EFI Fuel Tank Kit with 400 LPH Pump integrates a 400 liter per hour Walbro module inside the tank to maintain consistent flow at elevated throttle and boost levels. A built in precision sending unit delivers accurate fuel level readings through cornering and vibration, while included straps, filler neck, vent filter, gaskets, and installation hardware enable a direct fit installation. Crafted from premium materials in the USA, each assembly resists ethanol blends for reliable service.
Design and Compatibility
This fuel tank kit is engineered specifically for LS engine conversions in 1963 to 1967 Corvette frames. By working in partnership with MuscleRods chassis mounts, the system guarantees exact engine placement and precise drivetrain angles. That careful alignment minimizes vibration and stress on driveline components while simplifying installation for chassis builders and restoration experts. The tailored fit eliminates the need for extensive modification of the original frame floor, maintaining factory clearance around steering linkages and brake lines. Every mounting point is verified to factory dimensions, ensuring that the powertrain sits at the correct rake for optimal weight distribution and smooth power delivery.
Performance and Fuel Delivery
At the heart of this kit lies a high-efficiency fuel pump module designed to maximize horsepower output under all driving conditions. The assembly contains a 400 LPH Walbro pump capable of feeding supercharged or 550+ hp engine setups without dropping pressure at wide open throttle. By positioning the pump within the fuel reservoir, the design maintains constant supply even during hard cornering or uneven terrain. That steady flow reduces the risk of aeration and fuel starvation, allowing the engine control unit to maintain precise timing and injection pulses. The result is consistent throttle response, reliable acceleration, and the ability to handle track sessions as easily as daily driving.
Precision Measurement and Durability
A precision-engineered sending unit provides accurate fuel level readings, eliminating the guesswork that can arise with custom installations. Its float arm and bearing assembly are machined to tighter tolerances than common aftermarket options, so your gauge remains reliable throughout the tank's operating range. Every fuel line connection and bracket is fabricated from premium materials with corrosion resistance against modern ethanol blends and road salts. All welds are inspected for strength and leak prevention, and the entire assembly is proudly manufactured in the USA to meet rigorous quality standards. This combination of precision, toughness, and local craftsmanship ensures long service life and dependable performance season after season.
Engineered for LS conversions in 1963 to 1967 Corvette builds with premium US materials and ready for high output applications this tank kit ensures consistent flow under boost. For a smaller capacity fuel pump kit consider our 1963-1967 Corvette EFI Fuel Tank Kit - 255 LPH Pump.