EFI Fuel Tank Kit 400 LPH Pump for 1978-1980 Oldsmobile Cutlass LS and LT Swap
The Cutlass Notchback EFI Fuel Tank Kit 400 LPH Pump designed for 1978 to 1980 Oldsmobile models meets the critical demands of LS and LT engine swaps. With an in tank module housing a Walbro pump rated for supercharged or over 550 hp applications, this kit delivers 400 LPH flow from the factory opening. Complete with a precision sending unit, steel tank straps, filler neck, vent filter and molded gaskets, every component drops into the stock mounting points. All necessary installation hardware ensures straightforward assembly and reliable fuel supply under sustained high rpm loads.
Application Fitment and Compatibility
The 1978-1980 Cutlass Notchback EFI Fuel Tank Kit with a 400 LPH pump is designed specifically for GM chassis of those model years. It aligns directly with factory mounting points and integrates seamlessly with modern LS and LT engine layouts. When paired with MuscleRods mounts, the kit maintains correct engine position and drivetrain angle, preserving driveline geometry and reducing vibration. This focused fitment eliminates the guesswork of adapting a generic tank, ensuring that fuel lines, filler necks, and breather connections all match factory locations for a clean and secure installation.
Pump Performance and Capacity
At the core of the system is a 400 LPH Walbro pump engineered for supercharged and 550+ hp powerplants. This unit delivers steady pressure under high demand, preventing fuel starvation during hard acceleration or sustained wide-open throttle. The carefully chosen flow rate offers a balance between volume and usable pressure range, making it suitable for serious competition or heavy street duty. Precision engineering inside the pump minimizes heat buildup, which extends service intervals and maintains consistent delivery for both LS and LT configurations.
Precision-Engineered Components
Every element of this fuel tank kit undergoes rigorous testing to confirm long lasting durability in demanding conditions. The tank shell resists corrosion and road impact while internal baffles control fuel movement to maintain constant pickup. All fittings and hoses are selected for chemical resistance and secure sealing to prevent leaks. The all-in-one kit streamlines installation by providing every required part in one package, reducing installation time and potential mismatch errors. This comprehensive approach simplifies upgrades for restorers and builders aiming for reliability in high-output applications.
To complete your Smaller capacity fuel pump Kit at 255 LPH, consider our 1978-1980 Cutlass Notchback EFI Fuel Tank Kit - 255 LPH Pump.