1968-1969 Chevy Chevelle LS EFI Notched Fuel Tank Kit with 255 LPH Pump
When fitting an LS engine into your 1968-1969 Chevelle A body, this EFI Fuel Tank Kit carves chassis clearance under the stock rails without altering factory mounts. Built around a tailored notch profile for exhaust header and suspension clearance, the steel shell holds a 255 LPH Walbro pump inside a sealed delivery module that stays submerged during hard stops. It protects against heat soak and road debris while supporting up to 550 horsepower through direct-fit installation using original straps and filler neck for a streamlined setup.
Precision Notched Profile for Exhaust and Suspension Clearance
The custom contour of this fuel tank features a carefully engineered notch that provides critical clearance for modern exhaust headers and full suspension travel in a 1968–1969 Chevelle. By carving material only where interference could occur, the design maintains original fuel capacity and chassis strength while preventing contact between hot pipes and the steel shell. This precise shaping ensures that header runners remain free from chafing and that rear suspension components articulate smoothly under load. As a result, builders can fit LS engines without modifying factory rails or risking damage to the tank walls during dynamic driving conditions.
Submerged 255 LPH Fuel Pump Module Ensuring Consistent Flow
At the heart of the kit is a 255 liters per hour Walbro pump enclosed in an in-tank module that stays submerged during hard stops and cornering. Keeping the pump inlet below the fuel level prevents the formation of vapor pockets and maintains steady pressure throughout intense acceleration or braking. The sealed housing also protects electrical connections and the sending unit from heat transferred through the firewall and from debris thrown up by the rear axle. Together, these attributes deliver dependable fuel supply for engines up to 550 horsepower, minimizing the risk of lean spots and hesitation.
Robust Steel Shell with Internal Baffles for Fuel Stability
Constructed from heavy gauge steel, the tank resists dents and retains its shape even when exposed to ethanol blends and moisture over time. Welded baffles divide the interior into separate chambers, damping fuel slosh that could starve the pump or shift the vehicle's balance under quick transitions. This internal partitioning keeps the delivery module immersed and stabilizes the center of gravity, enhancing handling predictability in spirited driving or track use. The sturdy shell also shields precious fuel from engine bay heat soak, helping preserve performance consistency during extended runs.
Direct-fit Installation with OEM Straps and Filler Neck
This fuel tank kit installs using the factory mounting straps, filler neck, and stock hardware, eliminating the need for custom adapters or brackets. Prealigned mounting holes match the original body rails, allowing installers to secure the tank with common hand tools and supplied gaskets. Included vent filters and sealing components drop directly into existing openings, reducing potential leak points and ensuring a clean connection to fuel lines. The straightforward process typically can be completed in just a few hours, preserving the Chevelle's factory look while delivering a modern EFI fuel system upgrade.
For a larger capacity fuel pump Kit at 400 LPH consider our 1968-1969 Chevelle 400 LPH pump Tank Kit (notched) for reliable fuel delivery under sustained load.