Distributor Gear Iron .531in 351w

The Distributor Gear Iron .531in 351w from MSD IGNITION is a precision-engineered distributor drive gear designed specifically for serious engine builders and enthusiasts working on high-performance 351W (Windsor) applications. This small-block Ford component is essential for maintaining reliable ignition timing distribution in both modified and stock engines, ensuring that your ignition system remains synchronized under varying RPM conditions.

Manufactured from durable cast iron, this distributor gear features a .531-inch bore diameter that mates precisely with the 351W camshaft drive system. This design effectively transfers rotational force to the distributor at half-engine speed, which is critical for maintaining accurate firing order. The choice of iron material provides superior wear resistance compared to aluminum alternatives, making it ideal for high-horsepower applications where timing precision is crucial.

This distributor gear is perfect for 351W engine swaps, stroker builds, and any application requiring OEM or aftermarket distributor replacements. Its lightweight design, weighing just 0.28 lbs, makes it an easy bolt-on replacement during engine assembly or when updating ignition systems for carburetor-to-fuel-injection conversions.