* Displacement: The 350 (5.7L) has a larger displacement than the 305 (5.0L). This means the 350 generally produces more power and torque.
* Power and Torque: A stock 350 typically outperforms a stock 305 in both power and torque. However, modifications can significantly alter this. A highly modified 305 *could* potentially surpass a poorly maintained 350.
* Fuel Economy: The smaller 305 *can* offer slightly better fuel economy, especially at lower RPMs, but this difference is often negligible in real-world driving, especially if both engines are driven aggressively.
* Weight: The 350 is slightly heavier.
* Applications: The 305 was often found in lighter vehicles where fuel economy was prioritized (though this wasn't always the case). The 350 was frequently used in larger, more powerful vehicles.
In short:
* For more power and torque: Choose the 350.
* For potentially slightly better fuel economy (but less power): Choose the 305. However, the fuel economy difference might be too small to be worth sacrificing the power.
The "better" engine depends entirely on what you need and prioritize in your application. Consider the weight of the vehicle, intended use, and your budget for fuel and modifications.
