* 230 cubic inch inline-six: This was the base engine. A relatively small but reliable powerplant.
* 326 cubic inch V8: This was a popular choice, offering a significant jump in power over the six-cylinder. Several variations of this engine existed, with differing horsepower ratings based on carburetion and other factors.
* 400 cubic inch V8: The top-of-the-line V8 for the Tempest Lemans. This was a powerful engine. Again, different versions existed with varying horsepower.
It's important to note that the exact horsepower ratings for each engine varied depending on the specific configuration (e.g., two-barrel or four-barrel carburetor, compression ratio). To know the exact engine in a *specific* 1967 Pontiac Tempest Lemans, you'd need to check the vehicle's documentation (like the original build sheet or owner's manual) or the engine itself.
