Heavy duty main bearing caps set of 3, unbabbitted for use with stock crankshafts or a new SCAT crank with stock sized journals (Lang's part number 3030CB or 3030CBD). CNC machined from 1018 steel. No core required. You will need to babbitt these caps when you do the block to match the size of your new crankshaft.
Note: These heavy duty main bearings require longer cap bolts, (Lang's part number 3031SBS)