* Internal Components: Crankshaft, connecting rods, pistons, camshaft, valvetrain (springs, retainers, lifters), and head configuration (flow, porting, valve size) all significantly impact power output. Higher quality, more robust components capable of handling higher RPM and pressures are necessary for higher horsepower.
* Induction System: The carburetor or fuel injection system, intake manifold, and throttle body all influence the engine's ability to breathe efficiently. Forced induction (turbocharger or supercharger) drastically increases potential horsepower.
* Engine Management: Proper tuning of the engine's computer (if fuel injected) is crucial to optimize performance and prevent damage.
* Exhaust System: A well-designed exhaust system helps to evacuate spent gases efficiently, improving power and reducing backpressure.
* Build Quality: The precision and quality of the engine's assembly directly impact reliability and performance.
A naturally aspirated (non-turbocharged/supercharged) Chevy 383 stroker might produce anywhere from 400 to 600 horsepower, depending on the components and build. With forced induction, the sky's the limit, with some reaching well over 1000 horsepower, but this usually requires a significantly reinforced engine and careful tuning. However, reaching these high horsepower figures often compromises engine longevity and reliability.
