Precision Starts at the Gear
When you’re chasing perfect timing, mechanical precision matters. The MSD Oversize Bronze Distributor Gear (+0.006″) is built for Chevy V8 engines using camshafts that require a bronze gear—particularly in racing or high-performance builds with high-volume oil pumps.

This gear is CNC-machined from premium AMPCO 45 aluminum bronze, a material containing 5% nickel to increase tooth strength and wear resistance. The result: long-lasting durability and stable timing, even under the stress of aggressive valvetrain setups.