What engines will fit in 2004 Pontiac grand prix?

The 2004 Pontiac Grand Prix can accommodate several engines, primarily including the 3.1-liter V6 and the more powerful 3.8-liter V6 (also known as the L67 supercharged engine in the GT and GTP models). Additionally, some models may offer a 3.8-liter naturally aspirated V6 engine. It's important to ensure compatibility with the vehicle's transmission and other components when considering an engine swap.