Can you put a 5.9 cummins engine in 2002 silverado 1500?

No, you cannot easily put a 5.9 Cummins engine into a 2002 Silverado 1500. The frame, suspension, transmission, and many other components are not designed to handle the significantly larger and heavier Cummins engine. It would require a massive and extremely expensive custom fabrication project, likely more costly than buying a new truck. The effort and expense involved generally aren't worth it.