Ford SB 289 302 351 Windsor Cast 0.500" Shaft Distributor Gear [Thunder] heat-treated to a maximum strength

heat-treated to a maximum strength of 190

Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove

This cooler air charge provides additional power and torque

increases valve train life dramatically

The larger needle bearing fulcrum can withstand valve spring loads up to 600lbs

Ford SB 289 302 351 Windsor Cast 0.500" Shaft Distributor Gear [Thunder] heat-treated to a maximum strengthMatch your camshaft with Speedmaster iron distributor gears. These small gears have a big impact on your engine's performance. Best suited for hydraulic or solid flat tappet camshafts, our iron distributor gears are the perfect mates for your cast iron cams. The right choice is critical for your engine and your wallet choose Speedmaster iron distributor gears. They are manufactured from top quality cast iron, and then nitrided for durability.