1963-1966 Chevy Truck Frame Mount Gas Tank with Side Fill and 400 LPH Pump
Integrating an LS or LT powerplant into a 1963 through 1966 Chevy pickup demands a reliable fuel delivery setup. This frame mount gas tank with side fill and 400 LPH pump delivers an EFI ready package engineered for installation under the rear frame rails behind the axle. The 18 gallon capacity vessel features a side filler neck and a 0 to 30 ohm sending unit that interfaces with factory gauges. Equipped with a Walbro 400 LPH fuel pump rated for applications up to 750 HP and internal baffles to prevent fuel starvation during braking and turns, the tank measures 32-1/4" by 20-1/2" by 9-3/4" inches and requires drilling for frame rail mounting.
Overview and Applications
The 1963 to 1966 Chevy truck frame mount gas tank features a side fill inlet and a 400 LPH pump to deliver consistent fuel pressure for restoration and custom projects. Designed to replace original units with minimal body alterations, this assembly installs directly onto the frame rails of classic Chevy pickups. The side fill design positions the inlet along the outer rail, allowing easy access without cutting large holes in the floor or cab. This configuration supports reliable flow rates for engines that demand steady delivery, making it ideal for daily drivers and show vehicles alike.
Construction and Capacity
Crafted from corrosion resistant steel, the tank holds approximately 18 US gallons of fuel, matching or exceeding the capacity of the original equipment. Internal baffling reduces fuel surge during cornering or hard acceleration, ensuring the 400 LPH pump maintains a stable supply to the engine. All weld seams are fully sealed to prevent leaks, and the inlet and outlet ports are machined for precise fit of standard AN fittings. The side fill neck is reinforced to support a wide range of aftermarket caps, facilitating both stock style and custom finishing options.
Compatibility and Installation
When used with MuscleRods mounts this gas tank aligns perfectly with existing frame holes and maintains correct drivetrain angles. The mounting feet are laser cut to match the factory rail spacing, but installation requires drilling holes in the frame rails to secure the tank. Fuel lines connect directly to the pump port, and the tank drops out with a simple removal of four stainless steel bolts. Service access is enhanced by a removable cover panel that allows pump inspection without disconnecting the entire unit. This tank is engineered specifically for mid sixties Chevy truck frames and integrates seamlessly with MuscleRods hardware to streamline installation and preserve chassis geometry.
Trust MuscleRods for a precisely engineered fuel tank that ensures reliable EFI delivery and seamless integration on your mid sixties Chevy pickup.