King Bearings MB 557SI 010 Main Bearing Set

Aluminum based material, strengthen by 2.5-3% silicon, for medium load engines or nodular cast iron crankshafts. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate satisfaction. The company does not accept compromises when it is going about quality, so you can be completely confident that this product is 2nd to none.