Boy I'm glad this board includes a "search" feature. It works well. Apologies to those who are bugged by the repeat thread I posted today. Bone Heads R Us.
The oil filler cap says it is a later Olds V8. Maybe having owned seven rigs with similar engines counts as cheating though lol. I make 100%.
Aced it. Sure helped that it was multiple choice, they were all V8s, nothing was earlier than mid 50s, and that they didn't have any obscure choices (Stude, Edsel, DeSoto, Lincoln, etc.).