* 4.3L V6 (small-block): This was a very popular choice.
* 5.0L V8 (small-block): A more powerful option.
* 5.7L V8 (small-block): The largest and most powerful engine typically available.
* Diesel: A diesel engine option was also available, though less common than the gasoline engines. The exact displacement of the diesel would need to be verified from a specific vehicle's documentation, as it varied slightly over the years.
It's important to note that the availability of specific engines could vary based on trim level, body style (e.g., passenger van, cargo van), and regional specifications. To know the exact engine in a particular 1987 Chevy van, you would need to check the vehicle's identification number (VIN) or the vehicle's documentation.
