Ford SB 289 302 Windsor STD Main Bearings Get all of the performance

Get all of the performance that your engine can produce with these durable pushrods designed especially for high-lift cams

Designed to last in street and racing applications

They feature cast iron construction and are powdercoated to protect against corrosion

This units require the use of carrier bearing LM102949 / LM102910

This cooler air charge provides additional power and torque

Ford SB 289 302 Windsor STD Main Bearings Get all of the performanceThese Speedmaster main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.