1968-1969 A-Body Cutlass/Skylark LS EFI Fuel Tank Kit with 255 LPH Pump
When taking on an LS conversion in a classic A Body Cutlass or Skylark the stock tank often falls short in sustaining pressure under full throttle and can suffer from vapor lock. This 1968-1969 Cutlass / Skylark EFI Fuel Tank Kit drops right into the original tank opening and includes the pickup tube, seals, and wiring harness for a quick install without extra adapters. At its core the 255 LPH Walbro pump ensures consistent fuel delivery up to 550hp calibration while maintaining alignment with LS EFI fuel lines to limit heat soak and keep fuel fully submerged under load. Installation preserves the factory tank envelope and retains accurate gauge readings while routing fuel lines clear of hot exhaust sections to prevent cavitation during spirited driving.
Precision Engineered Module for Direct Tank Integration
The custom assembly brings pump, sending unit, gaskets and vent filter together in a single machined module that fits directly into the factory tank opening on 1968 and 1969 Cutlass and Skylark A-Body models. Each sealing surface is milled to precise dimensions, ensuring a snug fit without extra adapters or shims. By locating the pump outlet at the correct depth, fuel remains fully submerged through normal driving angles, which prevents cavitation and unwanted noise during cornering. This all-in-one approach preserves original level readings and streamlines the underbody layout for a cleaner installation.
255 LPH Walbro Pump Delivery for Consistent Fuel Flow
At the core of this fuel tank kit is a 255 LPH Walbro pump rated to support up to 550 horsepower output with stable delivery under sudden throttle changes. Its robust internal housing stands up to continuous operation, while the smooth flow path minimizes turbulence and heat build-up within the tank. Sustained pressure on steep grades or full throttle runs gives tuners a dependable baseline for fine tuning ignition timing and injector pulses. Drivers will notice consistent performance whether cruising or pushing the LS engine toward its limits.
Optimized Fuel Line Alignment to Reduce Heat Soak
The pump outlet is positioned to match LS EFI hose connections, enabling shorter runs that stay clear of hot exhaust headers and manifolds. This direct routing keeps fuel temperature lower by avoiding exposure to engine heat sources, which in turn prevents vapor formation and lock-up under load. The vent filter follows original tank venting paths to maintain proper pressure during rapid throttle transitions. Thoughtful hose angles and secure fittings further reduce line stress and ensure reliable flow in both daily driving and track use.
Depend on MuscleRods engineering for precise fit and reliable operation. To complete a Larger capacity fuel pump Kit at 400 LPH consider our 1968-1969 Cutlass / Skylark EFI Fuel Tank Kit - 400 LPH Pump.