I HAVE A NICE SET OF SBC  FULLY PORTED EDLEBROCK 23 DEGREE ALUMINUM HEADS THAT CAME OFF OF A ROLLER CAM 406. WE HAD TO SWITCH TO STEEL HEADS WITH THIS ENGINE, HEADS ARE FULLY PORTED AND HAVE STAINLESS VALVES, ISKY ROLLER SPRINGS, RETAINERS,KEEPERS, GUIDE PLATES,7/16" : STUDS. COMES WITH FULLY MATCH PORTED VICTOR JR INTAKE MANIFOLD. $1,250. 520 358 2022, 520 305 5153.