1978-1980 Oldsmobile Cutlass EFI Fuel Tank Kit for LS Swaps
Swapping an LS powerplant into a 1978-1980 Cutlass Notchback often reveals the stock fuel system cannot keep pace and this EFI fuel tank kit addresses that by retaining the original steel tank while integrating a 255 LPH Walbro pump for consistent delivery. Designed to bolt into factory mounting points the assembly preserves the underbody layout and eliminates welding or cutting. With capacity calibrated for engines up to 550 horsepower it maintains steady flow during rapid throttle changes and under sustained boost. Precision components like vent filters and gaskets ensure reliable sealing and simplify service access.
Precision Engineered for Factory Underbody Fit
Matching modern EFI hardware to a classic chassis requires pinpoint fitment. This fuel tank kit reuses the original steel tank and mounts directly into the factory mounting points on a 1978 to 1980 Cutlass Notchback underbody. Each filler neck, tank strap, and vent filter bracket is precision machined to follow the contours of the frame rails and floor pan so there is no need for cutting, welding, or spacers. This approach preserves the factory underbody appearance and eliminates common fitment challenges, letting builders focus on tuning the LS swap rather than fabricating a mounting system.
Integrated Corrosion Resistant In Tank Assembly
At the core of this assembly is a corrosion resistant module that integrates the 255 LPH Walbro pump, sending unit, and filter into a single in tank assembly. The component housing is treated to withstand fuel additives and moisture, extending service life in demanding street and track use. Internal vibration control features protect electric connections and seals against harmonic stresses, while the included gaskets and hardware deliver reliable sealing under repeated cycles of fill and drain. Accessing the module requires no complex disassembly; the design prioritizes serviceability by including quick disconnect fittings and a removable cover plate.
Engineered Fuel Delivery for Demanding LS Swaps
The matched 255 LPH Walbro pump ensures consistent fuel flow to support LS engines up to 550 horsepower, keeping pressure steady through hard launches, rapid throttle transitions, and sustained boost. By maintaining the correct volume, the system prevents lean conditions that can lead to engine detonation or hesitation under load. The pump works hand in hand with vent filters positioned near the tank top to manage vapor and prevent air locks that could interrupt performance. Drivers will experience smoother acceleration and reliable power delivery across the full rev range, whether on the street or the strip.
Simplified Installation and Service Accessibility
Installation is streamlined by a direct fit design that requires no drilling or custom brackets. All necessary components, including tank straps, filler neck, vent filter, gaskets, and mounting hardware, are supplied in the kit. Builders can follow a straightforward sequence: remove the stock pump module, drop in the new assembly, connect fuel lines and wiring with plug and play harnesses, then secure the tank with the original strap locations. This approach cuts build time significantly and allows easy removal for future inspections or pump upgrades.
To complement your larger capacity fuel pump Kit at 400 LPH consider our 1978-1980 Cutlass Notchback EFI Fuel Tank Kit - 400 LPH Pump. Trust MuscleRods for reliable performance.