BBM 426/440 Pro-Billet RTR Distributor - Black

The MSD BBM 426/440 Pro-Billet RTR Distributor in black is a ready-to-run ignition solution engineered for Mopar RB-series and big-block Hemi engines. This Pro-Billet distributor arrives fully assembled and calibrated, eliminating the need for additional tuning or component sourcing. The magnetic pickup design provides consistent spark timing across the RPM range, while the vacuum advance system automatically adjusts ignition curve based on engine load—optimizing both performance and fuel efficiency under varying throttle conditions.

The HEI-style terminal accepts standard coil pack connections, ensuring straightforward integration into existing wiring harnesses. Pro-Billet construction delivers precision bore tolerances and durable internal components that handle sustained high-RPM operation without drift or mechanical wear. The black finish resists corrosion and maintains appearance in engine bay environments. At 5.5 lbs, this distributor meets the weight and mounting requirements of 426 Hemi and RB-series platforms without modification. MSD's ready-to-run configuration means you install, connect the coil, and run—no curve grinding, no reindexing, no hidden compatibility surprises.

This distributor is built for engine builders, restoration specialists, and performance enthusiasts rebuilding classic Mopars with 426 or 440 big-blocks. Whether you're restoring an original muscle car, building a street engine, or upgrading an existing setup, the ready-to-run design cuts installation time while delivering the precise timing control these displacement engines demand. The combination of magnetic pickup reliability and vacuum advance responsiveness makes this a direct replacement choice for anyone seeking modern ignition accuracy without abandoning the original distributor form factor.