Optimized Airflow: The Speedway Mechanical Steel Cooling Fan features a six-blade steel non-flex design that maximizes airflow for superior cooling performance., Durability at High RPMs: Unlike flex fans, the solid steel fan blades of this Speedway model will not flatten at high RPMs, maintaining their performance under strenuous conditions., Racing Application: This cooling fan is recommended for race applications such as Modified, Sport Mod, Late Model, Stock Car, and Hobby Stock, making it a versatile choice for different racing scenarios., Universal Fit: Thanks to its slotted bolt pattern, the Speedway Cooling Fan fits nearly all V8 standard rotation water pumps, ensuring broad compatibility., Available Sizes: Catering to different cooling needs, the Speedway Mechanical Steel Cooling F.