1964-1967 Chevy Chevelle LS Compatible EFI Fuel Tank Kit with 255 LPH Pump
Swapping an LS V8 into a classic 1964 through 1967 Chevy Chevelle exposes the limits of the stock fuel tank under sustained throttle and track use. The 1964 through 1967 Chevelle EFI Fuel Tank Kit with 255 LPH pump installs into the factory tank bay with no cutting or welding. A Walbro module rated at 255 liters per hour supports engines up to 550 horsepower while submerged in fuel to keep temperatures low and prevent vapor lock. The calibrated sending unit follows the factory resistance curve for accurate gauge feedback, and the hardware package includes tank straps, filler neck, vent filter, gaskets, and fittings for a complete bolt-in installation. For builds above 550 horsepower, an optional 400 LPH pump module is available.
Overview of the Kit
The 1964 to 1967 Chevelle EFI Fuel Tank Kit with 255 LPH Pump is a complete EFI conversion package engineered for Chevelle, Malibu and Pontiac Beaumont models. It replaces the factory tank with a unit that accommodates modern LS powerplants and fuel delivery requirements. Every component is designed to meet original body contours and frame rail clearances, providing a seamless integration that preserves ride height and ground clearance. The kit includes a precision calibrated sending unit, tank straps, filler neck, vent filter, gaskets, and fittings so installers have every part needed for a clean, professional finish without the need for custom fabrication.
Performance and Reliability
At the heart of this system is a high-flow 255 LPH Walbro pump rated to support up to 550 HP, delivering consistent volume and pressure under sustained load. The durable pump design resists cavitation and heat soak in high-demand driving conditions, ensuring stable fuel rail pressure even during extended wide-open throttle runs. The calibrated sending unit interfaces directly with original gauge circuits to deliver accurate level readings, eliminating the guesswork of aftermarket senders. Together, pump and sender are matched to maintain smooth operation and pinpoint fuel control vital for tuned LS engines running modern engine management.
Installation and Compatibility
Installation follows factory mounting points for a no-drill setup that preserves sheet metal integrity and factory appearance. The all-inclusive hardware package features tank straps, fuel fittings, and rubber isolators tailored to the '64-'67 chassis. When used in conjunction with MuscleRods components this tank locates precisely in the frame, maintaining correct chassis geometry and ensuring proper clearance for exhaust and rear suspension elements. Detailed instructions guide installers through seamless connection to existing filler necks and fuel lines, delivering a turnkey solution that upholds factory fit and finish standards.
For a larger capacity fuel pump Kit at 400 LPH, choose our 1964-1967 Chevelle EFI Fuel Tank Kit - 400 LPH Pump.