* The base engine was typically a relatively low-horsepower six-cylinder.
* V8 options ranged from moderate horsepower to very high, depending on the size and configuration (e.g., 350, 400, 428). The higher-performance versions could produce well over 300 horsepower.
To find the horsepower of a *specific* 1969 Pontiac Lemans, you'd need to check its original documentation (if available) or its vehicle identification number (VIN) which can be decoded to reveal the engine code and thus horsepower.