What make and model(s) do have compatible parts that can be switched with a 2007 Monte Carlo ls with a 3500 v6?

 

What specific parts are you looking for?

There are some generic parts that are used in many GM products, while other (like body panels) are more specific to one make (and sometimes even one trim level on a given make).

 

If Hollander makes an interchange manual that includes your make and year… there you go.