LS and LT EFI Fuel Tank Kit for 1970 Buick Skylark A-Body
Starting a LS or LT engine swap in a 1970 Buick Skylark A-Body often reveals clearance and fuel flow challenges that standard tanks cannot solve, and this EFI fuel tank kit addresses both with precision. Its sculpted notched shell hugs exhaust pipes and rear tire sidewalls while preserving original mounting points to keep chassis rigidity intact. Equipped with a 400 LPH pump the kit sustains consistent pressure for engines producing up to 550 horsepower. By including an in tank module, sending unit, filler neck and mounting hardware installers skip extra trips and begin tuning sooner.
Precision Notched Shell Maintains Chassis Strength
The laser notched tank shell is sculpted to follow the contours of the 1970 Skylark floorpan, hugging exhaust pipes and rear tire sidewalls with exacting accuracy. This design preserves the original mounting points so the A-Body's structural integrity remains intact under load and during cornering. Installers benefit from a plug-and-play fit that aligns with factory holes, eliminating lengthy mock-up and cutting sessions. By respecting the Skylark's classic undercarriage layout, the tank integrates seamlessly without bending frame rails or compromising ride quality. The result is a restoration-grade installation that accommodates modern LS and LT drivetrains while honoring the vehicle’s heritage.
400 LPH Walbro Pump Ensures Steady Fuel Delivery
At the heart of this fuel tank kit is a Walbro 400 LPH pump capable of feeding engines up to 550 horsepower with a consistent flow rate. Housed within a dedicated module, the pump draws fuel through a fine mesh sock that traps debris and prevents rail clogging. This in-tank arrangement keeps the pump submerged to minimize noise and heat soak, so pressure remains stable from idle to wide-open throttle. Whether fitting a naturally aspirated V8 or a boosted LS build, drivers can expect reliable throttle response and protection against lean spots under heavy load. Routine servicing is simplified by direct access to the pump module inside the tank without further disassembly.
Complete Kit Expedites Installation Workflow
This comprehensive kit includes every component needed for a smooth EFI upgrade in the 1970 Buick Skylark: the 400 LPH pump module, sending unit, tank straps, filler neck, vent filter, gaskets and all mounting hardware. Each piece is engineered to mate precisely with existing chassis points, reducing the need for fabrication or third-party parts searches. The pre-formed filler neck aligns with bodywork to prevent rubbing or pinching, and the vent filter installs in minutes for proper tank breathing. By centralizing parts sourcing and fitting, installers move quickly from chassis prep to engine tuning with minimal surprises or additional visits to the parts counter.
Depend on this kit for precise fit and consistent flow. For a smaller capacity fuel pump Kit at 255 LPH see our 1970 Skylark 255 LPH pump Tank Kit (notched).