RallySport Direct carries a large selection of main bearings for those who are going to rebuild their motor. You can choose from a variety of sizes that include standard, stock, or oversized. Choose from great manufacturers that include the likes of Cosworth, King Engine Bearings, and ACL bearings. All three brands offer great bearings that can sustain engines designed to rev high and create lots of power. you can also choose bearings that have the option of anti-friction coating. A good set of main bearings is crucial to a new engine build and should never be overlooked. Make sure when planning your engine build, that you check out our great selection of pistons and sleeves, rod bearings, and seals.