Big Block Chevy Main Bearings set, Standard Clearance XP- Series 454 BBC 1/2 Groove,

King Bearings MB556XPN Big Block Chevy Main Bearings, BBC 454

Race XP Series, Xtreme Performance 

Standard Oil CLEARANCE  

• Bearing Usage: Performance
• Size:  Stock BBC 454
• 1/2 Grooved Bearing - Upper
• Material: Tri-Metal - copper-lead nickel
• Set of 5

King XP-Series Big Block Chevy Main Bearings

King Bearings with enhanced tri-metal, King XP-Series Big Block Chevy main bearings have a layer copper lead construction with a nickel plate barrier and lead/tin/copper Babbitt overlay a steel backing. This process provides superior stability and durability for a 454 BBC bearing under huge torqe loads. King Bearings advanced manufacturing in maintaining wall thickness tolerances far tighter than their competitors—an amazing +/- .0001 in.! The King's XP-Series BBC main bearings are narrowed for large radii crankshafts. They also feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. King XP-Series main bearings deliver consistent and reliable performance

BE ADVISED: IMAGE MAY DIFFER FROM ACTUAL PRODUCT.