1963-1966 Chevy Truck Frame Mount Fuel Tank for LS Swap
Installing a modern EFI fuel system in your 1963 to 1966 Chevy truck swap calls for a solution that fits the underbody without fouling ground clearance. This 18 gallon steel frame mount gas tank tucks neatly beneath the rear rails and uses internal baffling to keep the pump submerged during hard cornering and sudden stops. Equipped with a Walbro 255 LPH pump rated for up to 550 hp, it delivers consistent pressure for precise injection. A side fill neck provides easy refueling access while preserving bed space and classic styling.
Precision Underframe Fit for Classic Chevy Rails
At just 32.25 by 20.5 by 9.75 inches, the tank slides under the rear frame rails without impacting ground clearance. It aligns with factory mount points, cutting the need for major drilling or welding. This careful sizing helps maintain your truck's original underbody lines while adding modern fuel capacity. Installers will appreciate how the tank's shape respects the original frame geometry, making installation smoother. The tight fit also reduces movement and noise under load.
EFI Ready Design for Seamless LS Integration
The fuel system is engineered to match LS electronic injection requirements, delivering stable pressure at the injectors for responsive throttle control and cleaner combustion. With factory compatible electrical fittings and fuel line ports, the unit pares down wiring and plumbing tasks to basic connections. Equipped with a 255 liter per hour in tank pump rated for up to 550 horsepower, it keeps pace with mild street builds and more demanding setups. This focus on plug and play compatibility ensures that classic Chevy pickups gain modern drivability.
Advanced Internal Baffling Maintains Constant Fuel Supply
A multi chamber baffling layout keeps the Walbro pump submerged, even in hard cornering or rapid stops, guarding against fuel starvation. By isolating fluid motion, the design reduces slosh and aeration, leading to consistent gauge readings and longer pump life. This approach is vital for aggressive driving or towing, where sudden shifts in load can starve a standard tank. The internal partitions also dampen noise, offering quieter operation under acceleration.
Side Fill Neck Simplifies Refueling Without Intrusion
Relocating the filler to the frame rail negates the need for bed modifications and preserves cargo space. The side fill neck provides easy pump access at most service stations, so you avoid awkward angles and hose restrictions. This configuration maintains the truck's classic look by keeping the bed floor free of holes or adapters. Overall, it boosts convenience for daily driving while safeguarding your restoration work.
Engineered for reliable EFI performance and precise fitment in your LS swap.