How manydifferent engines does duramax have?

Duramax has offered several different engine families over the years, and within each family there have been variations. There's no single number to definitively answer "how many different engines" because the answer depends on how you define "different".

Consider these factors:

* Engine Families: Duramax engines generally fall into distinct families (e.g., LB7, LLY, LBZ, LMM, LML, LGH). These represent significant design differences.

* Variations within Families: Even within a single family, there might be variations in displacement, horsepower, torque ratings, and emissions controls due to changes made over production years or for different applications (trucks, buses, etc.).

Therefore, you might find sources claiming a number of different engines ranging from a few families to a much larger number counting all the variations. There is no single universally agreed-upon answer.