Crankshaft Rod and Main Bearings plus camshaft bearings compatible with 1968-02 small block block Chevy 305, 307, 327 Large journal, 350, 383 Small Block Chevy's. Please Note: these are for large Journal 327 engines. This set is for Standrd journal crankshafts. If you need undersizes, please message seller to verify the sizes you need before ordering to verify availability! We offer these in common undersizes (.010,.020,.030, .040)