1968-1969 Cutlass/Skylark A-Body LS EFI Fuel Tank Kit with 255 LPH Pump
When you install an LS engine in a 1968 or 1969 Cutlass or Skylark A Body the stock tank can struggle to keep fuel pressure steady under load and this kit addresses that by housing a 255 LPH Walbro pump with sending unit, seals and mounting hardware in one compact module. By integrating all critical components in the original tank location it matches factory fit and keeps fuel delivery reliable whether you are cruising on the highway or accelerating hard out of corners. Precision engineering aligns the module with LS EFI fuel lines to reduce heat buildup that can cause vapor lock and to maintain consistent flow even during sustained runs. Clear instructions and a complete parts list let technicians and home builders finish the swap without last minute trips for fittings or adapters.
Precision Engineered Module for Classic A Body Fuel Systems
This module houses the fuel pump, sending unit, vent filter and seals in a single assembly designed to fit directly into the original tank location of 1968 and 1969 Cutlass and Skylark A body vehicles. Precision alignment with LS engine EFI plumbing minimizes heat buildup that can lead to vapor lock during spirited driving. Each gasket and seal is manufactured to match factory tolerances, ensuring leak free performance and accurate level readings on vintage instrument panels. By combining these components into a self contained unit you avoid complex retrofits and preserve a clean undercarriage layout. Calibrating the pump outlet height within the tank ensures the assembly remains submerged under normal vehicle angles, preventing cavitation and noise in tight turns.
Robust 255 LPH Pump for Demanding Power Applications
At the heart of this kit is a 255 LPH Walbro fuel pump engineered to deliver the volume required for engine tunes of up to 550 horsepower. Its rugged construction resists wear under sustained load and maintains consistent pressure even during sharp corners or steep inclines. The pump's internal flow path reduces turbulence and heat generation, extending service life and preserving fuel quality. This steady supply prevents starvation that can compromise injector timing and mapping when you push hard on throttle. Reliability under extreme throttle events means a stable foundation for advanced engine calibrations.
Complete In Tank Kit Simplifies LS EFI Conversion
This comprehensive in tank kit includes every element needed for a seamless swap, from the pump module and sending unit to tank straps, filler neck adapter, vent filter, gaskets and all mounting hardware. A detailed instruction guide leads you through each step of the installation process, from frame strap placement to hose routing, without last minute trips for extra fittings. The included tank straps and mounting bolts are designed for secure engagement and resistance to vibration under load. As a result, labor time is reduced and you gain a consistent foundation for fuel delivery from startup through lengthy highway runs. Even the vent filter placement follows factory routing to maintain original appearance and flow characteristics.
Optimized Fuel Line Routing to Minimize Heat Soak
The module's outlet is oriented to match LS EFI line positions, reducing the length of hose that sits near the exhaust or engine block. Shorter routing keeps fuel cooler, preserving density and preventing vapor lock in hot engine bays. By following the stock path you avoid sharp bends and kinks that can restrict flow or cause premature hose wear. Proper vent filter placement ensures tank pressure remains balanced under rapid throttle changes, and factory style fittings maintain reliable seals without custom adapters. Together these design details deliver consistent fuel flow under both city driving and track conditions.
This kit delivers reliable fuel pressure under all driving conditions. For a larger capacity fuel pump kit at 400 LPH see our 1968-1969 Cutlass / Skylark EFI Fuel Tank Kit - 400 LPH Pump.