MSD 8456 Pro-Billet Distributor Drop-in billet replacement for Ford 5.0L EFI distributors with the cap and wire retainer Factory style ignition module accepts factory wiring CNC machined billet aluminum housing and billet aluminum base Magnetic pickup and precision reluctor create stable trigger signals throughout the RPM range Oversized steel shaft is QPQ coated and guided by a sealed ball bearing and an extra long sintered bushing