You are looking at a right side exhaust manifold for 73 or 74 Big Block Chevelle. It is cast # 353030, date is not legible. Correct for 73 or 74 Big Block Chevelle or Caprice but will also fit 70 – 72 Chevelle or Camaro with 402 or 454. The studs need replaced. No cracks, excessive pitting, or repairs. All mating surfaces look fine. A usable manifold.