Where to find a Pontiac 400 engine diagram for a 77 trans am?

You can find a Pontiac 400 engine diagram for a 1977 Trans Am in several places. Check automotive repair manuals such as the Haynes or Chilton manuals specific to Pontiac vehicles, which often include detailed diagrams. Additionally, online forums dedicated to classic cars or Trans Am enthusiasts may have shared diagrams, and websites like the Pontiac Historic Services or specific Pontiac parts retailers may offer diagrams as well. Lastly, consider searching for resources on websites like eBay or Amazon for specific service manuals.