RBS carries a complete line of Clevite bearings for your race engine. Main bearings are sold in sets of four pairs and a thrust bearing set. The Clevite 77 design incorporates the strength of a copper-lead layer on a precision steel back and finally, a precision electroplated thin overlay of babbitt material only .0005" - .0008" thick.
Fits most all BBC engines and has an extra .001" oil clearance.