* The specific engine build: A stock 468 will produce significantly less horsepower than a highly modified one.
* Cylinder heads: Different heads offer different flow characteristics.
* Camshaft: The camshaft profile greatly impacts horsepower and torque curves.
* Intake manifold: The intake manifold's design affects airflow.
* Carburetion or fuel injection: The fuel delivery system is critical.
* Compression ratio: Higher compression generally yields more power, but requires higher-octane fuel.
* Exhaust system: A restrictive exhaust system will rob horsepower.
Therefore, there's no single answer to how much horsepower a 468 big-block makes. A stock 468 might produce somewhere in the 350-400 horsepower range, while a highly modified version could easily exceed 600 or even 800 horsepower. A professional race engine could even produce significantly more.
