1978-1980 Oldsmobile Cutlass EFI Fuel Tank Kit with 255 LPH Pump for LS Swaps
Whether you are converting your 1978 to 1980 Cutlass Notchback to an LS powerplant or refreshing the existing fuel system, the 1978-1980 Cutlass Notchback EFI Fuel Tank Kit - 255 LPH Pump provides the critical fuel flow and components required for reliable operation. This bolt-in installation features a 255 LPH pump housed in the corrosion resistant module, complete with sending unit, tank straps, filler neck, vent filter, gaskets and mounting hardware. Engineered to support up to 550 horsepower, it sustains steady delivery under sustained load and prevents engine starvation. For outputs beyond 550 horsepower, consider the optional 400 LPH upgrade to meet higher demand.
Overview of the 1978-1980 Cutlass Notchback EFI Fuel Tank Kit
The 1978-1980 Cutlass Notchback EFI Fuel Tank Kit with a 255 LPH pump is engineered for LS engine users seeking reliable fuel management up to 550 horsepower. This kit includes a precision tank, sender unit, and a Walbro 255 LPH pump designed to maintain consistent pressure under hard acceleration. It supports engine outputs up to 550 horsepower by ensuring that fuel delivery keeps pace with high demand. By choosing this package, builders gain confidence in eliminating fuel starvation in both street and strip applications.
Fuel Delivery System and Performance Benefits
At the heart of the system is the Walbro 255 LPH pump, rated to support outputs as high as 550 horsepower without risk of cavitation or pressure collapse. The pump’s design promotes a stable flow rate that prevents lean conditions during cornering or sustained high rpm operation. Optimized for EFI conversions, the kit’s internal plumbing and high-flow lines are calibrated to deliver fuel at a steady rate, reducing the chance of vapor lock and ensuring precise injector control. The result is crisp throttle response, consistent air–fuel ratios, and repeatable lap times.
Seamless Integration with MuscleRods Mounts
This fuel tank kit is tailored to fit LS engine conversions in the 1978-1980 Cutlass Notchback when used in conjunction with MuscleRods mounts. MuscleRods alignment ensures accurate engine placement and proper drivetrain angles, maintaining factory suspension geometry while minimizing vibration. Precision-crafted mounting points on the tank match the chassis rails and crossmembers engineered by MuscleRods, providing a direct-fit solution without custom fabrication. Installation guides included in the kit walk through each step, confirming that fuel lines, electrical connections, and vent hoses align perfectly for a professional finish.
Precision Craftsmanship and Durability
Every component in this kit is fabricated to strict tolerances to guarantee leak-free operation and longevity. The tank shell features reinforced baffles that control fuel movement and minimize slosh under hard braking and acceleration. The sender unit employs a hardened float mechanism for accurate fuel-level readings over thousands of cycles. All fittings are AN-style and rated for high-pressure environments, and the pump is sealed in a stainless steel strainer basket to prevent debris ingestion. These quality measures translate into a kit that performs reliably on the road, track, or dyno.
For increased flow and reliable delivery in high output LS conversions, consider the Larger capacity fuel pump Kit at 400 LPH with our 1978-1980 Cutlass Notchback EFI Fuel Tank Kit - 400 LPH Pump.