King Bearings Main Bearing Set MB 557XP

Xtreme Performance Tri-Lecular Bearings

Designed specifically for applications that are subject to high bearing loads, Xtreme Performance tri-metal bearings feature the addition of a copper intermediate layer, strengthened with tin, that results in a 24% stronger overlay and 17% increase in fatigue resistance. A narrow design makes Xtreme bearings compatible with all crankshafts, including those with large radii. Specify size (Standard, -0.010", -0.020, or -0.030") when ordering. Many bearings are also available with performance coating by simply adding "C" suffix to the part number.

• Main Bearings
• 1/2 Grooved
• SB Chevy 265-327, 1955-67

King Bearings Main Bearing Set MB 557XP - Main Bearing - XP - Standard - Small Block Chevy - Kit - Brand: King Bearings - Part Number: MB 557XP