How much horsepower is in a 1989 350 motor?

The horsepower of a 1989 350 cubic inch (5.7 liter) engine varied significantly depending on the application and the manufacturer's modifications. There's no single answer. A 350 in a Corvette would have considerably more horsepower than one in a pickup truck.

You need to specify:

* The make and model of the vehicle: The engine's horsepower rating is highly dependent on the vehicle it was installed in.

* The specific engine code (if known): Different engine codes within the same displacement (350 cubic inches) denote different internal components and tuning, leading to varying horsepower outputs.

Without this information, it's impossible to give you an accurate horsepower figure. A reasonable *range* for a stock 1989 350 might be from roughly 170 hp to 230 hp, but that's a very broad estimate.