Chrys Pro-Billet Dist

The Chrys Pro-Billet Distributor (MSD 8545) is a precision-engineered ignition component designed for high-performance Chrysler engine builds and street/strip applications. Built for enthusiasts and professional mechanics who demand reliable spark timing control, this billet distributor replaces worn OEM units and serves as the foundation for advanced ignition tuning on modified powerplants. Whether you're running a carbureted big-block or preparing a classic mopar for the dragstrip, the Pro-Billet design eliminates timing drift and improves combustion efficiency under heavy load and RPM variation.

This distributor features a fully machined billet housing that resists wear and deformation better than cast iron alternatives, ensuring consistent rotor-to-cap clearance across thousands of ignition cycles. The precision-ground shaft and calibrated advance curve deliver repeatable timing advancement, critical for optimizing fuel burn in carbureted and EFI conversions alike. Internal components are engineered for minimal play and maximum durability, making it compatible with both mechanical and electronic ignition systems—a flexibility that appeals to restorers retrofitting modern ignition technology into vintage blocks. The compact footprint (7 x 6.7 x 18.6 inches) fits within standard Chrysler engine bay dimensions without requiring extensive modification to intake manifolds or accessory brackets.

Mechanics upgrading ignition systems on Mopar platforms—whether small-block LA-series or legendary big-blocks—will appreciate the Pro-Billet's bolt-in installation and direct compatibility with existing cap-and-rotor setups. This distributor shines in applications where timing stability directly impacts cylinder pressure and combustion efficiency: forced-induction builds, high-compression engines, and vehicles operated at sustained high RPM. Installation requires basic distributor knowledge: verify engine rotation direction, confirm cap orientation, and set initial base timing with a timing light—standard procedures for any performance ignition work. For serious Chrysler enthusiasts seeking a reliable, durable distributor that bridges stock and race-level performance expectations, the Pro-Billet Distributor delivers measurable improvements in cold-start consistency and load-range ignition response.