1978-1987 Oldsmobile Cutlass LS Swap Fuel Tank Kit with 255 LPH Pump
When fitting an LS swap in a 1978 to 1987 Oldsmobile Cutlass four door, inconsistent fuel flow often leads to hesitation and this Fuel Tank kit solves that with a direct fit design. It installs into the stock tank cavity, bolts to factory mounts and retains the OEM filler neck for accurate level sensing and full underbody clearance. A brushless 255 LPH pump sustains consistent flow to support up to 550 hp, and the modular cartridge lets you swap in a 400 LPH unit with no new brackets or wiring.
Precision Brushless Pump for Consistent LS Fuel Flow
The fuel delivery in high output LS engines relies on stable pressure and volume under all conditions. This kit's 255 LPH pump features a brushless motor that eliminates wear from internal contact points and reduces heat buildup during extended runs. Its balanced rotor assembly and sealed housing keep vibration and moisture at bay when the engine is pushed to peak output. Engineered to support up to 550 horsepower, it prevents cavitation under high load and maintains a constant supply even during aggressive acceleration. The smooth output curve prevents dips in pressure during rapid throttle changes and ensures the engine remains responsive across the entire rpm band.
Modular Pump Cartridge for Effortless Capacity Increase
Upgrading fuel flow is simplified with a cartridge system that accepts a 400 LPH unit without new brackets or wiring changes. By removing the original pump module and inserting the higher capacity cartridge, builders adapt to forced induction or upgraded cam profiles without cutting lines or retooling the tank assembly. This swap can be completed without tools in just minutes, reducing downtime and avoiding compatibility headaches as horsepower goals climb. It also protects the integrity of the surrounding components since no drilling or trimming is needed, and the factory sealing rings maintain leak free operation throughout the transition.
OEM Tank Integration for Seamless Cutlass Installation
This assembly installs directly into the factory fuel cavity for 1978 to 1987 Cutlass four door models using the stock mounting points. Retaining the original filler neck preserves underbody clearance and keeps the factory level sensor precise. By preserving full chassis height, the system avoids contact with road hazards and leaves exhaust routing unchanged. The sending unit arrives pre wired to plug into the existing harness so there is no need for adapters or extensions. Installers appreciate that the process mirrors factory methods and delivers a professional fit every time.
USA Made Straps and Gaskets for Reliable Protection
Every strap, seal and filter in this kit is manufactured domestically from corrosion resistant materials chosen for fuel contact and vibration exposure. Stainless steel straps maintain consistent clamp force over time while the molded polymer gaskets provide a tight barrier against leaks and debris. The inclusion of an in tank vent filter and American made gaskets completes the leak proof strategy, and all hardware components pass rigorous inspections with full traceability. This selection of domestic parts yields a tank assembly that endures thermal cycles and daily driving conditions without compromise.
Engineered for a precise fit and reliable performance in your LS swap every time.