I3 Billet Dist. Mopar 426-440 w/Black Cap

The Pertronix I3 Billet Distributor for Mopar 426–440 engines combines modern electronic ignition technology with classic muscle car heritage. This magnetic pickup distributor features the proven Flame-Thrower ignition system, delivering reliable spark timing across a wide RPM range while maintaining the look and bolt-in compatibility of original equipment. The black cap finish complements vintage Mopar engine bays while the socket-style rotor ensures straightforward installation and maintenance on RB-series big-block applications.

Designed for 426 and 440 cubic-inch Mopar engines, this distributor integrates both vacuum and mechanical advance mechanisms, allowing the ignition curve to respond dynamically to engine load and throttle position. The magnetic pickup eliminates point wear, delivering consistent timing without the maintenance intervals required by breaker-point systems. The billet aluminum construction provides durability in high-heat engine compartments, while the compact 7 x 7 x 16.8-inch footprint fits within factory distributor mounting locations on Mopar RB-block vehicles.

This distributor serves enthusiasts restoring or upgrading classic Dodge, Plymouth, and Chrysler muscle cars who demand starting reliability and smooth idle characteristics without sacrificing authenticity. Whether running original carburetors or modern fuel injection systems adapted to big-block Mopar platforms, the I3's advance curve accommodates fuel variety and engine tune variations common in vintage performance builds. Weighing 5.8 pounds, installation requires only a spark plug wire set, rotor cap, and rotor—making it an accessible upgrade path from deteriorating original ignition systems.