1970-1972 Oldsmobile Cutlass A-Body LS EFI Fuel Tank Kit with 255 LPH Pump
When installing an LS engine in a 1970 to 1972 Oldsmobile Cutlass this EFI fuel tank kit provides a complete solution to maintain consistent pressure and avoid the need for frame rail trimming. Molded to match the underbody contours of the Cutlass A Body chassis the tank secures to spot welded pads and preserves original clearance around brake lines and exhaust. At its heart the 255 LPH Walbro pump supports returnless and traditional rail systems up to 550 horsepower while included stainless steel lines and a precision filler neck remove extra fittings and resist corrosion under load.
Custom Fuel Tank Shaped for 1970 to 1972 Cutlass Frame Fit
The fuel tank features a purpose molded profile that matches the underbody contours of the 1970 to 1972 Oldsmobile Cutlass chassis, eliminating the need for any rail trimming or notching. By seating securely in the factory spot welded pads and using original strap locations, it preserves clearance around brake lines and exhaust components, minimizing risk of abrasion or heat damage. This precise fitment also maintains correct ground clearance and prevents contact with suspension parts, ensuring reliable service life. Installers benefit from a drop‐in alignment that saves time and avoids costly modifications while retaining the vehicle’s structural integrity over every mile.
Precision Walbro Pump Delivering Steady Flow to 550 HP Engines
At the heart of this kit is a 255 LPH Walbro electric fuel pump engineered to support LS powerplants up to 550 horsepower without pressure drops at peak demand. An internal bypass valve allows seamless use in both returnless and traditional rail systems, maintaining consistent output from idle through full throttle bursts. The integrated strainer guard captures debris before it reaches the motor, reducing wear and preventing interruptions under sustained load. Winding patterns and materials are selected to resist heat soak, so the pump retains peak efficiency even after extended operation on street or track.
Stainless Steel Fuel Lines and Filler Neck Ensuring Leak Free Routing
Included stainless steel lines are preformed to exact radii for smooth routing beneath the chassis, removing guesswork and the need for custom bending. The corrosion resistant construction eliminates extra adapters, reduces potential leak points and stands up to road contaminants and flexing over time. A precision filler neck aligns perfectly with the factory opening to avoid body modifications, and a molded vent filter prevents debris entry while allowing proper tank breathing. Together these components streamline plumbing, maintain proper flow paths and deliver a durable fuel circuit for high-output LS installations.
Complete Fuel Hardware Kit Streamlining Classic Engine Swaps
This all‐in‐one kit arrives with everything needed for a seamless fuel system retrofit on a Cutlass, including the pump module, in‐tank assembly, sending unit, straps, gaskets, vent filter, filler neck and all mounting hardware. Each piece is engineered in the USA to fit as a cohesive system, removing part-hunting delays and ensuring quality across every component. Detailed assembly instructions guide installers through pump wiring, vent line routing and strap placement, delivering a consistent build process from start to finish. As a result, builders can focus on tuning the LS engine rather than troubleshooting fitment or sourcing separate parts.
Count on MuscleRods for consistent pressure and reliable service life. To upgrade to a Larger capacity fuel pump Kit at 400 LPH see our 1970-1972 Cutlass EFI Fuel Tank Kit - 400 LPH Pump.