Why do you stick 351 winsor heads on a 302 and goes year matter?

Sticking 351 Windsor heads on a 302 engine can enhance performance due to the Windsor heads' larger valves and improved airflow characteristics, which can lead to better horsepower and torque. However, compatibility issues arise because the 302 and 351 Windsor engines have different block configurations and mounting points, so modifications may be necessary. Additionally, the year of the engine matters as it affects the casting design and the compatibility of components, ensuring proper fitment and performance gains. Always consider the specific engine year and design to avoid complications.