1968-1969 A-Body Oldsmobile Cutlass and Buick Skylark LS Fuel Tank Kit
When swapping an LS into a 1968 to 1969 Oldsmobile Cutlass or Buick Skylark, maintaining a steady fuel feed under hard acceleration is essential and this EFI tank kit addresses that need head on. Featuring a 255 LPH pump nestled in a notched tank, it delivers consistent volume for engine builds up to 550 hp without starving the injectors. Its contours match the A body frame rails and clear exhaust and rear suspension components, allowing fitment without cutting or hammering. Installation is simplified by including the complete pump module, sending unit, filler neck and mounting hardware so you can focus on bolting in the assembly and connecting lines.
Optimized Fuel Delivery for 550 hp LS Builds
The 255 LPH fuel pump at the heart of this kit is selected to maintain a steady flow under wide open throttle and rapid rpm changes. By preventing lean peaks during hard acceleration, it ensures your LS powerplant reaches its full potential up to 550 hp without risking fuel starvation. Drivers experience more consistent throttle response and reliable power delivery across the rev range, whether on the street or at the track. This level of fuel management is critical for demanding applications where a momentary dip in pressure could cost horsepower or engine health.
Precision Notched Tank Contours for A Body Frame
Every curve of the tank is shaped using advanced CAD data from 1968–1969 Cutlass and Skylark underbodies, creating a notch that clears exhaust tubing and rear suspension links without trimming. This tailored geometry maximizes usable capacity while preserving factory ground clearance and protecting the tank from road debris. The result is a drop-in assembly that aligns perfectly with A Body frame rails, eliminating the need for cutting or hammering. You gain full fuel volume in a design that respects the original chassis layout.
Comprehensive Kit Components for Swift Installation
This full-service package bundles the fuel pump module, sending unit, filler neck, vent filter, tank straps, gaskets and all mounting hardware needed for an LS swap. Each piece is engineered to slot into existing fuel and filler openings on Cutlass and Skylark bodies, ensuring a leak-free seal and precise alignment. With all components in hand, installers bypass the hassle of sourcing parts separately and complete the assembly in a fraction of the usual time. The streamlined process cuts out installation guesswork and helps avoid common clearance issues.
Factory Style Fit for Original Underbody Appearance
The tank's mounting flanges and filler tube are positioned to match the stock bracket points and quarter panel cutout, so the gas cap lines up exactly as delivered from the factory. Maintaining these dimensions preserves the clean underbody profile and retains the classic look of your Cutlass or Skylark. By avoiding custom brackets and filler neck adapters, you safeguard the vehicle's original aesthetic and structural integrity. This attention to dimension and alignment offers peace of mind that your EFI system complements the car's heritage without compromise.
For a larger capacity fuel pump Kit at 400 LPH see our 1968-1969 Cutlass 400 LPH pump Tank Kit (notched).