King Chevrolet 396/400/427/502 (Undersize 0.40in) SI-Series Main Bearing Set King Engine Bearings Sale! from 4399 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. King Chevrolet 396/400/427/502 (Undersize 0.40in) SI-Series Main Bearing Set