How much horsepower does a 366 cid gm have?

There's no single answer to how much horsepower a 366 cubic inch GM engine has. The horsepower output depends entirely on the specific engine configuration, year of manufacture, and any modifications made. A 366 cubic inch engine could be found in various GM vehicles over the years, and each would have different horsepower ratings.

To find the horsepower for a *specific* 366 cubic inch GM engine, you'll need to provide more information, such as:

* Year: The year the engine was manufactured.

* Model: The vehicle model it was in (e.g., Chevrolet, Buick, Oldsmobile, Pontiac).

* Engine Code: The engine code (often found on a sticker or stamped on the engine block) is crucial for precise identification.

With that information, you can then consult resources like repair manuals, online engine databases, or GM's own documentation to determine the factory horsepower rating.