1968-1969 Chevy Chevelle LS EFI Notched Fuel Tank Kit with 255 LPH Pump
Fitting an LS engine into a 1968 and 1969 Chevelle A Body requires exhaust header and suspension clearance and the Notched Fuel Tank Kit with a 255 LPH pump solves this without altering factory mounts. Precision cut steel shell with a submerged 255 LPH Walbro pump module prevents vapor lock under hard braking and holds pressure steady during cornering and acceleration. The direct fit design uses stock straps and filler neck to support up to 550 horsepower without custom brackets or chassis modification. Internal baffles reduce fuel slosh under acceleration or cornering while the shell resists road debris and firewall heat for reliable operation on street or track.
Precision Notch Design for Exhaust and Suspension Clearance
The 1968–1969 Chevelle EFI Fuel Tank Kit features a precision notch profile that carves additional room beneath the tank body to clear modern exhaust headers and full suspension travel without altering factory rails. By removing material only at critical interference points, the design retains the original fuel volume and maintains the structural integrity of the chassis. This targeted approach prevents hot header tubes from rubbing against the steel shell while allowing rear springs and control arms to articulate freely, giving builders the confidence to fit an LS motor without any sheet metal or frame modifications.
Submerged Walbro Pump Module for Consistent Fuel Delivery
At the core of this kit lies a 255 liter per hour Walbro pump installed inside a sealed in-tank module that remains fully submerged under all driving conditions. Keeping the pump inlet below the fuel level eliminates the risk of vapor lock and ensures a steady supply when cornering, braking or accelerating hard. The housing also shields electrical connections and the sending unit from engine bay heat and road debris thrown up by the rear axle. Together, these features sustain a reliable flow for power levels up to 550 horsepower and reduce the chance of lean spots under load.
Internal Baffles and Steel Shell Construction for Slosh Control
Constructed from thick gauge steel, the tank resists dents from debris and heat soak coming through the firewall, safeguarding fuel quality over time. Internally welded baffles divide the tank into compartments that damp fuel movement during rapid transitions, keeping the pump inlet submerged and stabilizing the vehicle's center of gravity. This slosh control delivers predictable handling in both street and track environments, preventing sudden shifts in weight distribution. The robust shell also protects against ethanol fuel blends, preserving the tank's shape and ensuring long term service life.
Complete Kit Components and Direct Fit Installation
This complete fuel tank kit includes everything needed for a seamless LS swap on a Chevelle A-Body. In addition to the 255 LPH pump module, you receive a sending unit, tank straps, filler neck, vent filter, gaskets and all mounting hardware. Predrilled holes match the stock body rails and the original filler neck connection, so installation uses common hand tools and factory straps with no custom brackets required. The straightforward process typically takes only a few hours, letting enthusiasts upgrade to electronic fuel injection while preserving the Chevelle's original mounting points and appearance.
Trust MuscleRods to deliver reliable performance for your LS swap and for a larger capacity fuel pump Kit at 400 LPH see our 1968-1969 Chevelle 400 LPH pump Tank Kit (notched).