255 LPH Fuel Pump Module 64-70 Mustang OEM Tank

The 255 LPH Fuel Pump Module 64-70 Mustang OEM Tank is the modern fuel delivery solution for classic muscle car enthusiasts restoring or upgrading first and second-generation Mustangs. This Holley module replaces worn factory fuel pumps while maintaining original tank compatibility, eliminating the need for expensive tank replacement or complex aftermarket modifications. Whether you're building a street-driven restomod or maximizing fuel pressure stability for carburetor tuning, this 255-liter-per-hour capacity module delivers the flow rate necessary for reliable performance across idle to full-throttle operation.

Engineered as a direct OEM tank fit, the 255 LPH module integrates the pump, sender, and pickup tube into a sealed assembly that mounts through the existing tank opening without modification. Holley's robust electric motor design ensures consistent pressure delivery even under sustained high-RPM load, critical for maintaining carburetor float bowl levels during aggressive acceleration or prolonged highway cruising. The pump's internal check valve prevents fuel backflow, while the regulator pathway allows fine-tuning of delivery pressure—essential when transitioning from single-barrel to four-barrel carburetors or adjusting jet sizing. At 2.3 lbs, the compact module fits within the tank envelope while providing significantly higher output than original mechanical pumps.

Restorers and performance builders favoring OEM tank preservation will find this module indispensable for 1964–1970 Mustang models equipped with stock fuel tanks. Installation requires basic electrical wiring to a relay circuit and a quality ground, making it accessible to DIY mechanics with fundamental automotive knowledge. The 255 LPH output exceeds most carburetor demands, supporting dual-carb setups or fuel-injected engine conversions without additional modifications. Verify tank sender ohm rating compatibility before purchase to ensure gauge functionality post-installation.