Main Brg. Set, .50mm/.50mm, 1200 1600cc All-the-bolts

All-the-bolts

-Complete-kits-feature-Aluminum-Center-Section-Manifold

-Stronger-with-more-durable-finish-that-won't-dull-like-polished-Aluminum

-Springs-and-Inserts

Main Brg. Set, .50mm/.50mm, 1200 1600cc All-the-boltsManufactured in Mexico by Silverline an Original Equipment Supplier. Top engine builders will tell you that all aluminum center main bearings can cause increased bearing wear or premature failure and will eventually pound out the center main web of the engine case due to the bearing's softer construction. The cure new Silverline Engine bearings with STEEL Backing and an Aluminum Face. OEM Quality Main Bearings with STEEL Backing. (SKU: 981475S)