1968-1969 Chevy Chevelle EFI Fuel Tank Kit for LS Engine Swaps
When installing a modern LS powerplant in a late sixties Chevelle A Body, chassis clearance can become a major obstacle under the tank rails. This EFI fuel tank kit equipped with a notched tank design carves critical space for wider exhaust routing and full suspension travel while retaining stock mounting points for a straightforward fit. It integrates a 255 liters per hour Walbro pump inside the tank to sustain pressure for up to 550 hp and to keep the unit shielded from engine heat and road debris. Crafted from heavy gauge steel with internal baffles, the assembly resists ethanol blends and prevents fuel starvation during hard cornering or sudden stops.
Precision Notched Geometry for Exhaust and Suspension Clearance
The specialized notched contour along the lower rail of the fuel tank is sculpted to carve out vital space for modern exhaust headers and full rear wheel travel. By selectively removing steel only where needed, the tank preserves its original capacity while eliminating interference under hard cornering or uneven terrain. This tailored profile ensures that suspension movement and pipe routing coexist without contact, protecting the shell from abrasion and dents. The result is a seamless chassis integration that maintains the Chevelle's factory mounting points and driving dynamics.
Integrated In Tank Fuel Delivery Module
At the heart of the kit is a complete in tank delivery module, featuring a 255 LPH Walbro pump designed to sustain up to 550 horsepower output. Housing the pump, sending unit, and associated hardware inside the tank shields these components from engine heat and road debris, reducing the risk of vapor lock and component fatigue. The internal arrangement keeps the inlet submerged at all times, even during sudden stops, and delivers consistent pressure across the entire rev range. This enclosed design simplifies wiring and plumbing, so the entire assembly operates quietly and reliably under demanding driving conditions.
Heavy Gauge Steel Construction with Internal Baffle Control
Fabricated from thick steel plate and treated with a corrosion resistant finish, this tank stands up to aggressive ethanol blends and moisture exposure typical of daily and performance use. Internal baffles restrict fuel surge during sharp turns or heavy braking, keeping the pump inlet submerged and preventing cavitation that can lead to lean spots. The robust shell resists deformation from road impact and shielded positioning helps prevent heat soak. This combination of strength and fluid management provides uninterrupted fuel supply, whether cruising city streets or tracking a road course.
Direct Fit Installation Using Factory Bracket Alignment
The kit reuses the Chevelle's original mounting brackets, filler neck and fuel lines for a true bolt in process that avoids custom fabrication. Stock strap locations and vent connections align precisely with the body rails so installers can use basic hand tools to secure the tank in place. Included components such as the filler neck, vent filter and gaskets drop in without adapters, reducing project time and eliminating fabrication errors. The end result is a clean, factory style installation that preserves chassis integrity and ensures reliable operation from day one.
To upgrade your system with a larger capacity fuel pump Kit at 400 LPH consider our 1968-1969 Chevelle 400 LPH pump Tank Kit (notched).