You are looking at a 59 Chevy 283 / 230 HP 4 bbl cast iron intake. This intake uses the 4 inch Carter carb. It is cast # 3746829 and dated B1059 which is Feb 10, 1959. This intake is correct for 58 to 61 Impala, truck or Corvette with 283 / 230 HP. There is one snapped carb stud. There are no cracks, cuts, drilled holes, or stripped threads. Has been bead blasted. A nice, clean 1959 dated intake.